/* roulang page: index */
:root{
  --ink:#111418;
  --green:#0FAE8C;
  --green-dark:#0C8E73;
  --green-soft:#E6F7F1;
  --orange:#FF7A3C;
  --orange-soft:#FFF0E8;
  --bg:#F6F7F4;
  --bg-2:#EEF1EC;
  --card:#FFFFFF;
  --border:#E3E7E0;
  --muted:#6B7280;
  --dark:#0E1116;
  --dark-text:#E9F7F2;
  --success:#16A34A;
  --warn:#F59E0B;
  --error:#DC2626;
  --info:#64748B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(17,20,24,.04),0 8px 24px rgba(17,20,24,.06);
  --sh-2:0 12px 32px rgba(17,20,24,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--green)}
p{margin:0 0 1.25em}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:4px}
::selection{background:var(--green-soft);color:var(--ink)}

.wrap{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-12px;margin-bottom:-12px}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px}

/* ============ 顶部倒计时条 ============ */
.topbar{background:var(--ink);color:#DDE3E1;font-size:13px}
.topbar__inner{display:flex;align-items:center;gap:14px;min-height:48px;padding-top:6px;padding-bottom:6px}
.topbar__label{color:#9AA3AE;white-space:nowrap}
.countdown{display:flex;align-items:center;gap:2px;font-variant-numeric:tabular-nums;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace}
.countdown b{display:inline-block;min-width:32px;padding:2px 6px;border-radius:8px;background:#1B2026;color:#FFFFFF;font-weight:800;text-align:center}
.countdown i{font-style:normal;color:#8F98A3;font-size:12px;margin:0 7px 0 5px}
.topbar__link{margin-left:auto;color:#DDE3E1;font-size:13px;white-space:nowrap}
.topbar__link:hover{color:var(--green)}
.topbar__link span{display:inline-block;transition:transform .2s ease}
.topbar__link:hover span{transform:translateX(3px)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:#FFFFFF;border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:.2px;white-space:nowrap;flex:0 0 auto}
.brand__mark{position:relative;width:30px;height:30px;border-radius:50%;border:2px solid var(--green);flex:0 0 auto}
.brand__mark::before{content:"";position:absolute;inset:5px;border-radius:50%;border:2px solid var(--orange);opacity:.9}
.brand__mark::after{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--green)}
.brand:hover{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 12px;font-size:15px;font-weight:500;color:#3A4149;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--green);border-radius:2px;transform:scaleX(0);transform-origin:left center;transition:transform .2s ease}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{position:relative}
.nav-search input{width:186px;height:40px;padding:0 12px 0 36px;border:1px solid var(--border);border-radius:999px;background:var(--bg-2);font-size:14px;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease}
.nav-search input::placeholder{color:#9AA3AE}
.nav-search input:focus{outline:none;border-color:var(--green);background:#FFFFFF;box-shadow:0 0 0 3px rgba(15,174,140,.14)}
.nav-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:#7C858F;fill:none;stroke-width:2;stroke-linecap:round}
.link-login{font-size:14px;color:#3A4149;padding:8px 4px}
.link-login:hover{color:var(--green)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:12px;background:#FFFFFF}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#FFFFFF;z-index:120;transform:translateX(102%);transition:transform .26s ease;box-shadow:var(--sh-2);display:flex;flex-direction:column;padding:18px 20px 28px;overflow-y:auto}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.nav-drawer__close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--muted);border-radius:12px}
.nav-drawer__close:hover{background:var(--bg-2);color:var(--ink)}
.nav-drawer .nav-search{margin:10px 0 6px}
.nav-drawer .nav-search input{width:100%}
.drawer-links{display:flex;flex-direction:column;margin:8px 0 18px}
.drawer-links a{padding:14px 2px;font-size:16px;border-bottom:1px solid var(--border);color:#3A4149}
.drawer-links a.is-active{color:var(--green);font-weight:700}
.drawer-actions{display:flex;flex-direction:column;gap:12px}
.backdrop{position:fixed;inset:0;background:rgba(14,17,22,.42);opacity:0;visibility:hidden;transition:opacity .24s ease;z-index:110}
.backdrop.is-open{opacity:1;visibility:visible}

/* ============ 按钮与徽章 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .18s ease;white-space:nowrap}
.btn--primary{background:var(--green);color:#FFFFFF;box-shadow:0 6px 16px rgba(15,174,140,.22)}
.btn--primary:hover{background:var(--green-dark);color:#FFFFFF;transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,174,140,.28)}
.btn--ghost{background:#FFFFFF;color:var(--green);border-color:var(--green)}
.btn--ghost:hover{background:var(--green-soft);color:var(--green-dark);transform:translateY(-1px)}
.btn--orange{background:var(--orange);color:#FFFFFF;box-shadow:0 6px 16px rgba(255,122,60,.24)}
.btn--orange:hover{background:#EE6A2C;color:#FFFFFF;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,60,.3)}
.btn--sm{min-height:40px;padding:8px 16px;font-size:14px}
.btn--block{width:100%}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:14px;font-weight:600}
.btn-link span{transition:transform .2s ease}
.btn-link:hover span{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 11px;border-radius:999px;font-size:12px;line-height:16px;font-weight:600}
.badge--green{background:var(--green-soft);color:var(--green-dark)}
.badge--orange{background:var(--orange-soft);color:#D9561E}
.badge--gray{background:var(--bg-2);color:#5A6460}

/* ============ 板块基础 ============ */
.section{padding:64px 0}
.section--alt{background:var(--bg-2)}
.section--white{background:#FFFFFF}
.section--dark{background:var(--dark);color:var(--dark-text)}
.section--dark h2,.section--dark h3{color:#FFFFFF}
.section--dark p{color:#B9C6C1}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:28px;line-height:1.35;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--green)}
.section-head p{margin:12px 0 0;color:var(--muted);font-size:15px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--center h2{padding-left:0}
.section-head--center h2::before{display:none}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--green-dark);letter-spacing:1px;margin-bottom:10px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--bg);padding:56px 0 64px}
.hero::before{content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(15,174,140,.22);box-shadow:0 0 0 46px rgba(15,174,140,.06),0 0 0 96px rgba(15,174,140,.035);pointer-events:none}
.hero::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--border)}
.hero__grid{position:relative;z-index:2}
.hero__title{font-size:38px;line-height:1.28;font-weight:800;letter-spacing:-.2px}
.hero__title em{font-style:normal;color:var(--green-dark)}
.hero__sub{margin:18px 0 0;font-size:17px;line-height:1.85;color:#4B545C;max-width:620px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero__stats{display:flex;flex-wrap:wrap;gap:0;margin-top:34px;padding-top:22px;border-top:1px solid var(--border)}
.stat{padding-right:26px;margin-right:26px;border-right:1px solid var(--border)}
.stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat__label{display:block;font-size:13px;color:var(--muted)}
.stat__value{display:block;font-size:19px;font-weight:800;margin-top:2px}
.hero__media{position:relative}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;box-shadow:var(--sh-1)}
.hero__float{position:absolute;left:-16px;bottom:-22px;width:236px;background:#FFFFFF;border:1px solid var(--border);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-2)}
.hero__float h3{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:6px}
.hero__float strong{font-size:26px;font-weight:800;color:var(--green-dark);line-height:1}
.progress{margin-top:12px;height:6px;border-radius:999px;background:var(--bg-2);overflow:hidden}
.progress i{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--green),#4FD3B4)}
.hero__float small{display:block;margin-top:9px;font-size:12px;color:var(--muted)}
.hero__ring{position:absolute;right:-12px;top:-12px;width:74px;height:74px;border-radius:50%;border:1px dashed rgba(15,174,140,.45);display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.86);font-size:12px;font-weight:700;color:var(--green-dark);text-align:center;line-height:1.2}

/* ============ 交错卡 ============ */
.stack-card{display:flex;flex-direction:column;height:100%;background:#FFFFFF;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.stack-card:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--sh-2)}
.stack-card__body{padding:24px 26px 26px}
.stack-card__body h3{font-size:20px}
.stack-card__body p{margin:10px 0 16px;color:var(--muted);font-size:15px}
.stack-card__media{overflow:hidden}
.stack-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.stack-card:hover .stack-card__media img{transform:scale(1.03)}
.mini-stack{display:grid;grid-template-columns:1fr;gap:24px;height:100%}
.mini-card{display:flex;gap:16px;background:#FFFFFF;border:1px solid var(--border);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.mini-card:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--sh-2)}
.mini-card__icon{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--green-soft);display:flex;align-items:center;justify-content:center}
.mini-card__icon svg{width:22px;height:22px;stroke:var(--green-dark);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mini-card h3{font-size:17px}
.mini-card p{margin:6px 0 10px;font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 图墙 ============ */
.gallery-item{position:relative;display:block;border-radius:var(--r-img);overflow:hidden;background:#E6F7F1;box-shadow:var(--sh-1)}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.gallery-item--wide img{aspect-ratio:16/10}
.gallery-item--tall img{aspect-ratio:4/3}
.gallery-item::after{content:"";position:absolute;inset:auto 0 0 0;height:58%;background:linear-gradient(transparent,rgba(17,20,24,.55));opacity:.9;transition:opacity .3s ease}
.gallery-item:hover img{transform:scale(1.03)}
.gallery-item:hover::after{opacity:1}
.gallery-tag{position:absolute;left:16px;bottom:14px;z-index:2;color:#FFFFFF;font-size:13px;font-weight:600;letter-spacing:.4px}
.gallery-cap{margin:10px 0 0;font-size:14px;color:#4B545C}

/* ============ 证据 / 反馈 ============ */
.metric{background:#FFFFFF;border:1px solid var(--border);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);height:100%}
.metric strong{display:block;font-size:32px;font-weight:800;color:var(--green-dark);line-height:1.1}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.metric em{display:block;margin-top:12px;font-style:normal;font-size:14px;color:#4B545C}
.quote{background:#FFFFFF;border:1px solid var(--border);border-left:3px solid var(--green);border-radius:var(--r-card);padding:22px 24px;height:100%;box-shadow:var(--sh-1)}
.quote p{font-size:14.5px;color:#3A4149;line-height:1.85;margin:0 0 14px}
.quote footer{font-size:13px;color:var(--muted)}

/* ============ 报名 CTA ============ */
.signup{background:var(--dark);border-radius:24px;padding:44px;color:var(--dark-text);position:relative;overflow:hidden}
.signup::before{content:"";position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(15,174,140,.35);box-shadow:0 0 0 34px rgba(15,174,140,.08)}
.signup h2{font-size:26px;color:#FFFFFF}
.signup p{color:#B9C6C1;margin:12px 0 0;font-size:15px}
.signup__form{position:relative;z-index:2;background:#FFFFFF;border-radius:20px;padding:26px;color:var(--ink)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.field input{width:100%;height:46px;padding:0 14px;border:1px solid var(--border);border-radius:12px;background:#FFFFFF;transition:border-color .2s ease,box-shadow .2s ease}
.field input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(15,174,140,.14)}
.field input.is-error{border-color:var(--error)}
.field .hint{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.field .err{display:none;margin-top:6px;font-size:14px;color:var(--error)}
.field.has-error .err{display:block}
.field--code{position:relative}
.field--code input{padding-right:120px}
.field--code button{position:absolute;right:8px;bottom:8px;height:30px;padding:0 12px;border-radius:8px;background:var(--green-soft);color:var(--green-dark);font-size:13px;font-weight:600}
.field--code button:disabled{background:var(--bg-2);color:#9AA3AE;cursor:not-allowed}
.form-msg{display:none;margin:12px 0 0;font-size:14px;color:var(--success)}
.form-msg.is-show{display:block}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:color .18s ease}
.faq-q:hover{color:var(--green-dark)}
.faq-q i{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-q i::before,.faq-q i::after{content:"";position:absolute;background:var(--green);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.faq-q i::before{left:0;top:9px;width:20px;height:2px}
.faq-q i::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-q i::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--green-dark)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{margin:0 0 20px;font-size:15px;line-height:1.85;color:var(--muted);max-width:760px}

/* ============ 最新信息 ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{padding:8px 16px;border-radius:999px;border:1px solid var(--border);background:#FFFFFF;font-size:14px;color:#4B545C;transition:all .18s ease}
.chip:hover{border-color:rgba(15,174,140,.45);color:var(--green-dark)}
.chip.is-active{background:var(--green);border-color:var(--green);color:#FFFFFF;font-weight:600}
.post-card{display:flex;flex-direction:column;height:100%;background:#FFFFFF;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--sh-2)}
.post-card__cover{display:block;overflow:hidden;background:#E6F7F1}
.post-card__cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-card__cover img{transform:scale(1.03)}
.post-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card__body h3{font-size:18px;line-height:1.5;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__body p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.post-tip{display:none;margin:0 0 18px;padding:12px 16px;border-radius:12px;background:var(--green-soft);color:var(--green-dark);font-size:14px}
.empty-state{text-align:center;padding:46px 20px;background:#FFFFFF;border:1px dashed var(--border);border-radius:var(--r-card)}
.empty-state__ring{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;border:2px solid #D7DED8;position:relative}
.empty-state__ring::after{content:"";position:absolute;inset:14px;border-radius:50%;border:2px solid #E3E7E0}
.empty-state h3{font-size:16px}
.empty-state p{margin:8px 0 16px;font-size:14px;color:var(--muted)}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--green-soft);border:1px solid rgba(15,174,140,.22);border-radius:24px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:26px}
.cta-band p{margin:10px 0 0;color:#4B545C;font-size:15px}
.cta-band__actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C9D1CC;padding:52px 0 0;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#FFFFFF;margin-bottom:14px}
.footer-brand .brand__mark{border-color:var(--green)}
.site-footer h4{font-size:15px;color:#FFFFFF;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.85;color:#9AA3AE;margin:0 0 14px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#C9D1CC}
.footer-links a:hover{color:var(--green)}
.footer-ring{width:56px;height:56px;border-radius:50%;border:1px solid rgba(15,174,140,.5);position:relative;margin-top:6px}
.footer-ring::after{content:"";position:absolute;inset:14px;border-radius:50%;border:1px solid rgba(255,122,60,.5)}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8F98A3}

/* ============ 响应式 ============ */
@media screen and (min-width:1280px){
  :root{--container:1320px}
}
@media screen and (max-width:1199px){
  .nav-search input{width:150px}
  .nav-link{padding:0 9px;font-size:14.5px}
}
@media screen and (max-width:1023px){
  .nav-links{display:none}
  .nav-search{display:none}
  .link-login{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{gap:14px}
  .nav-tools{margin-left:auto}
  .hero__title{font-size:32px}
  .hero__media{margin-top:34px}
  .hero__float{left:auto;right:12px;bottom:-18px}
  .section{padding:52px 0}
  .signup{padding:32px}
}
@media screen and (max-width:639px){
  .wrap{padding:0 16px}
  .grid-margin-x{margin-left:-8px;margin-right:-8px}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px}
  .grid-margin-y{margin-top:-8px;margin-bottom:-8px}
  .grid-margin-y>.cell{padding-top:8px;padding-bottom:8px}
  .topbar__inner{gap:10px;min-height:44px}
  .topbar .badge{display:none}
  .topbar__link{font-size:0}
  .topbar__link span{font-size:16px}
  .countdown b{min-width:26px;padding:1px 4px;font-size:13px}
  .countdown i{margin:0 3px 0 2px;font-size:11px}
  .hero{padding:36px 0 44px}
  .hero::before{width:320px;height:320px;right:-140px;top:-120px}
  .hero__title{font-size:28px;line-height:1.34}
  .hero__sub{font-size:16px}
  .hero__cta .btn{width:100%}
  .hero__stats{flex-direction:column;gap:14px;margin-top:26px}
  .stat{margin:0;padding:0;border-right:0}
  .hero__float{position:static;width:100%;margin-top:14px}
  .hero__ring{display:none}
  .section{padding:36px 0}
  .section-head{margin-bottom:24px}
  .section-head h2{font-size:23px}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:16px}
  .signup{padding:22px;border-radius:18px}
  .signup__form{padding:20px}
  .cta-band{padding:26px 22px;border-radius:18px}
  .cta-band h2{font-size:22px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .faq-q{font-size:15px;padding:16px 0}
  .site-footer{padding-top:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}

/* roulang page: article */
:root{
  --ink:#111418;
  --ink-soft:#23282F;
  --accent:#0FAE8C;
  --accent-dark:#0C8F74;
  --accent-soft:#E6F7F1;
  --warm:#FF7A3C;
  --warm-soft:#FFF1E9;
  --bg:#F6F7F4;
  --bg-2:#EEF1EC;
  --card:#FFFFFF;
  --line:#E3E7E0;
  --muted:#6B7280;
  --dark:#0E1116;
  --dark-text:#E9F7F2;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --info:#64748B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:18px;
  --sd:0 1px 2px rgba(17,20,24,.04), 0 8px 24px rgba(17,20,24,.06);
  --sd-h:0 12px 32px rgba(17,20,24,.10);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--warm)}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x > .cell{padding-left:12px;padding-right:12px}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;min-height:44px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(15,174,140,.20)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(15,174,140,.28)}
.btn-ghost{background:#fff;color:var(--accent-dark);border-color:rgba(15,174,140,.45)}
.btn-ghost:hover{background:var(--accent-soft);color:var(--accent-dark);border-color:var(--accent);transform:translateY(-1px)}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(255,122,60,.22)}
.btn-warm:hover{background:#ef6a2b;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,60,.30)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;min-height:40px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--accent-dark);min-height:44px}
.btn-text:hover{color:var(--warm)}
.btn-text i{transition:transform .18s ease}
.btn-text:hover i{transform:translateX(3px)}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;line-height:16px;font-weight:600}
.badge-accent{background:var(--accent-soft);color:var(--accent-dark)}
.badge-warm{background:var(--warm-soft);color:#D4571E}
.badge-gray{background:var(--bg-2);color:var(--muted)}
.chip{display:inline-flex;align-items:center;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:var(--muted);transition:all .18s ease}
.chip:hover{border-color:var(--accent);color:var(--accent-dark);background:var(--accent-soft)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  position:relative;width:32px;height:32px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,#fff 0 26%,var(--accent) 27% 40%,#fff 41% 58%,var(--accent) 59% 72%,#fff 73% 100%);
  border:1.5px solid var(--accent);
  box-shadow:0 2px 8px rgba(15,174,140,.18);
}
.brand-mark::after{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--warm)}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand-text{color:var(--accent-dark)}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-link{position:relative;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--ink-soft);font-weight:500}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover{color:var(--accent-dark);background:var(--bg-2)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--accent-dark);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--bg);transition:all .18s ease}
.nav-search:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px rgba(15,174,140,.10)}
.nav-search i{color:var(--muted);font-size:14px}
.nav-search input{width:150px;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:#9AA3AE}
.nav-login{font-size:15px;color:var(--ink-soft);font-weight:500;padding:8px 4px}
.nav-login:hover{color:var(--accent-dark)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;color:var(--ink)}
.nav-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 22px}
.nav-drawer.is-open{display:block}
.drawer-inner{display:flex;flex-direction:column;gap:6px;padding:0 24px}
.drawer-search{display:flex;align-items:center;gap:10px;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:var(--bg);margin-bottom:10px}
.drawer-search input{flex:1;border:0;background:transparent;outline:none}
.drawer-link{padding:12px 6px;border-radius:10px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-link:hover{color:var(--accent-dark);background:var(--bg-2)}

/* ============ 面包屑 ============ */
.breadcrumb{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}
.breadcrumb .wrap{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-dark)}
.breadcrumb .sep{color:#C3CAC4}
.crumb-current{color:var(--ink-soft);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{padding:40px 0 8px}
.article-hero .badge{margin-bottom:16px}
.article-title{
  font-size:34px;line-height:1.32;font-weight:800;letter-spacing:.2px;max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--muted)}
.article-meta i{color:var(--accent);margin-right:6px}
.article-meta em{font-style:normal;font-weight:700;color:var(--ink)}
.meta-dot{width:1px;height:12px;background:var(--line);display:inline-block}

/* ============ 文章主体 ============ */
.article-section{padding:24px 0 56px}
.article-grid{align-items:flex-start}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd);padding:36px 40px 32px}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-soft)}
.article-body > :first-child{margin-top:0}
.article-body p{margin:0 0 1.35em}
.article-body h2{position:relative;font-size:28px;line-height:1.42;margin:2.1em 0 .8em;padding-left:16px;scroll-margin-top:96px}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--accent)}
.article-body h3{font-size:22px;line-height:1.5;margin:1.8em 0 .6em;scroll-margin-top:96px}
.article-body h4{font-size:18px;line-height:1.6;margin:1.5em 0 .5em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.35em}
.article-body li{margin:.45em 0}
.article-body blockquote{margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 12px 12px 0;color:#1C463C}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.6em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--accent-dark);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--warm)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border-radius:12px;overflow:hidden}
.article-body th{background:var(--bg-2);text-align:left;font-weight:700;color:var(--ink)}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FAFBF8}
.article-body code{background:var(--bg-2);border-radius:6px;padding:2px 6px;font-size:.92em}
.article-body pre{background:var(--ink);color:var(--dark-text);padding:18px;border-radius:14px;overflow:auto;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* ============ 空态 ============ */
.empty-state{text-align:center;padding:48px 16px}
.empty-ring{width:88px;height:88px;margin:0 auto 18px;border-radius:50%;background:radial-gradient(circle at 50% 50%,#fff 0 30%,var(--bg-2) 31% 48%,#fff 49% 66%,var(--bg-2) 67% 100%);border:1px solid var(--line)}
.empty-state h3{font-size:18px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:18px}

/* ============ 文末 ============ */
.article-foot{border-top:1px solid var(--line);margin-top:40px;padding-top:26px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-label{font-size:13px;color:var(--muted);font-weight:600;margin-right:2px}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px}
.share-label{font-size:13px;color:var(--muted);font-weight:600;margin-right:2px}
.share-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink-soft);font-size:13px;cursor:pointer;transition:all .18s ease}
.share-btn:hover{border-color:var(--accent);color:var(--accent-dark);background:var(--accent-soft);transform:translateY(-1px)}
.share-btn.is-copied{border-color:var(--ok);color:var(--ok);background:#EDFBF2}

/* ============ 侧栏 ============ */
.toc-col{position:relative}
.toc-stack{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd);padding:22px 22px 20px}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;margin-bottom:14px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--accent)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto}
.toc-link{display:block;padding:8px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;font-size:14px;color:var(--muted);line-height:1.6}
.toc-link:hover{color:var(--accent-dark);background:var(--bg-2)}
.toc-link.is-active{color:var(--accent-dark);font-weight:700;border-left-color:var(--accent);background:var(--accent-soft)}
.dl-list{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.dl-item{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px}
.dl-item span{color:var(--muted)}
.dl-item b{font-weight:700;color:var(--ink)}
.dl-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}

/* ============ 继续浏览 ============ */
.section{padding:56px 0}
.section-tight{padding:40px 0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:26px;line-height:1.4}
.section-head p{margin-top:8px;font-size:14px;color:var(--muted)}
.nav-card{display:flex;align-items:center;gap:16px;height:100%;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.nav-card:hover{transform:translateY(-2px);box-shadow:var(--sd-h);border-color:rgba(15,174,140,.45)}
.nav-card .icon{flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent-dark);display:flex;align-items:center;justify-content:center;font-size:16px}
.nav-card .txt{min-width:0}
.nav-card .txt small{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.nav-card .txt strong{font-size:16px;color:var(--ink);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.navcard-arrow{margin-left:auto;color:var(--accent);font-size:14px}

/* ============ 相关推荐 ============ */
.rec-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sd);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sd-h);border-color:rgba(15,174,140,.45)}
.rec-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--accent-soft)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:17px;line-height:1.5}
.rec-body p{font-size:14px;line-height:1.75;color:var(--muted)}
.rec-foot{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--dark);color:var(--dark-text);border-radius:24px;padding:44px 44px;display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between}
.cta-band h2{color:#fff;font-size:26px;line-height:1.45;max-width:620px}
.cta-band p{color:#A9BEB7;font-size:15px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.cta-link{color:var(--dark-text);font-weight:600;display:inline-flex;align-items:center;gap:6px;min-height:44px}
.cta-link:hover{color:var(--accent)}
.cta-deco{display:flex;gap:6px;margin-bottom:16px}
.cta-deco span{width:10px;height:10px;border-radius:50%;border:1.5px solid rgba(233,247,242,.5)}
.cta-deco span:nth-child(2){border-color:var(--accent)}
.cta-deco span:nth-child(3){border-color:var(--warm)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-text);margin-top:64px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{box-shadow:none}
.footer-desc{font-size:14px;color:#A9BEB7;line-height:1.85;max-width:320px}
.footer-deco{display:flex;gap:6px;margin-top:18px}
.footer-deco span{width:9px;height:9px;border-radius:50%;border:1.5px solid rgba(233,247,242,.35)}
.footer-deco span:nth-child(2){border-color:var(--accent)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#C9D1CC;font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-contact{font-size:14px;color:#C9D1CC;line-height:2}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(233,247,242,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#93A19B}
.footer-bottom a{color:#93A19B}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .wrap{max-width:1140px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-search{display:none}
  .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .article-title{font-size:30px}
  .article-card{padding:28px 26px}
  .article-body{font-size:16.5px}
  .toc-stack{position:static}
  .toc-col{margin-top:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:34px 30px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .article-title{font-size:26px;line-height:1.4}
  .article-body{font-size:16px;line-height:1.8}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:19px}
  .article-card{padding:22px 18px}
  .section{padding:44px 0}
  .section-head h2{font-size:22px}
  .cta-band h2{font-size:21px}
  .nav-card{flex-direction:column;align-items:flex-start}
  .navcard-arrow{display:none}
}
@media (max-width:639px){
  .wrap{padding:0 16px}
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;max-width:190px}
  .article-section{padding:18px 0 40px}
  .article-hero{padding:28px 0 4px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px;border-radius:20px}
  .article-meta{gap:10px}
  .crumb-current{white-space:normal}
}

/* roulang page: category1 */
:root{
  --ink:#111418;
  --ink-soft:#3A3F45;
  --brand:#0FAE8C;
  --brand-deep:#0b8f73;
  --brand-soft:#E6F7F1;
  --accent:#FF7A3C;
  --accent-soft:#FFF1E9;
  --bg:#F6F7F4;
  --bg-2:#EEF1EC;
  --card:#FFFFFF;
  --line:#E3E7E0;
  --muted:#6B7280;
  --dark:#0E1116;
  --dark-2:#111418;
  --dark-text:#E9F7F2;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --info:#64748B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(17,20,24,.04),0 8px 24px rgba(17,20,24,.06);
  --sh-2:0 12px 32px rgba(17,20,24,.10);
  --gutter:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.2px;}
h1{font-size:36px;line-height:1.28;font-weight:800;}
h2{font-size:28px;line-height:1.35;font-weight:700;}
h3{font-size:22px;line-height:1.4;font-weight:700;}
h4{font-size:18px;line-height:1.5;font-weight:700;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 var(--gutter);
}
@media (min-width:1280px){
  .container{max-width:1320px;}
}
.grid-x > .cell{min-width:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(17,20,24,.06);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{position:relative;width:34px;height:34px;flex:0 0 34px;}
.brand-mark .ring{position:absolute;border:2px solid var(--brand);border-radius:50%;}
.brand-mark .r1{inset:0;opacity:.9;}
.brand-mark .r2{inset:7px;opacity:.5;}
.brand-mark .dot{position:absolute;inset:14px;background:var(--brand);border-radius:50%;}
.brand-text{font-weight:800;font-size:17px;line-height:1.2;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 12px;
  font-size:15px;
  color:var(--ink-soft);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:#F2FAF7;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:2px;border-radius:2px;
  background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--bg-2);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box:focus-within{
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(15,174,140,.12);
}
.search-box i{color:var(--muted);font-size:14px;}
.search-box input{
  border:0;outline:0;background:transparent;
  width:168px;font-size:14px;
}
.search-box input::placeholder{color:#9AA3A9;}
.btn-text{
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 6px;font-size:15px;color:var(--ink-soft);
}
.btn-text:hover{color:var(--brand);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  color:var(--ink);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(15,174,140,.45);}
.btn-outline:hover{border-color:var(--brand);background:#F2FAF7;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#ef6a2c;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.text-link i{transition:transform .2s ease;font-size:13px;}
.text-link:hover{color:var(--accent);}
.text-link:hover i{transform:translateX(3px);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(17,20,24,.42);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(340px,86vw);
  background:#fff;
  padding:20px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .26s ease;
  box-shadow:-14px 0 34px rgba(17,20,24,.16);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:10px;font-size:20px;line-height:1;cursor:pointer;color:var(--ink);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-search{width:100%;margin-bottom:18px;}
.drawer-search input{width:100%;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-nav .nav-link{width:100%;justify-content:flex-start;border-radius:10px;}
.drawer-nav .nav-link.is-active::after{display:none;}
.drawer-nav .nav-link.is-active{background:var(--brand-soft);}

@media (max-width:1023px){
  .nav-links,.header-actions .search-box,.header-actions .btn-text{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (min-width:1024px){
  .mobile-drawer,.drawer-mask{display:none;}
}

/* ============ 面包屑 ============ */
.breadcrumb{
  padding:20px 0 0;
  font-size:13px;
  color:var(--muted);
  display:flex;flex-wrap:wrap;gap:6px;align-items:center;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C3CAC4;}
.breadcrumb .current{color:var(--ink-soft);font-weight:600;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:40px 0 56px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;right:-140px;top:-140px;
  width:460px;height:460px;border:1px solid rgba(15,174,140,.20);
  border-radius:50%;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-46px;top:-46px;
  width:270px;height:270px;border:1px solid rgba(15,174,140,.14);
  border-radius:50%;pointer-events:none;
}
.hero-copy{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:12px;font-weight:700;letter-spacing:.4px;
  margin-bottom:18px;
}
.eyebrow i{font-size:11px;}
.page-hero h1{margin-bottom:16px;}
.hero-sub{
  font-size:17px;line-height:1.9;color:var(--muted);
  max-width:620px;margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:0;
}
.metric{
  padding:0 26px;
  border-left:1px solid var(--line);
}
.metric:first-child{padding-left:0;border-left:0;}
.metric .m-label{display:block;font-size:13px;color:var(--muted);line-height:1.6;}
.metric .m-value{display:block;font-size:18px;font-weight:800;line-height:1.5;}
.hero-visual{position:relative;z-index:2;}
.hero-visual > img{
  width:100%;
  border-radius:24px;
  aspect-ratio:4/3;
  object-fit:cover;
  background:var(--brand-soft);
  box-shadow:var(--sh-1);
}
.float-card{
  position:absolute;
  left:-18px;bottom:-22px;
  width:min(268px,84%);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 18px;
  box-shadow:var(--sh-2);
}
.float-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.float-head strong{font-size:20px;font-weight:800;}
.float-card p{font-size:13px;color:var(--muted);margin:0 0 8px;}
.progress{height:8px;border-radius:999px;background:var(--brand-soft);overflow:hidden;}
.progress span{display:block;height:100%;border-radius:999px;background:var(--brand);}
.float-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:8px;}

@media (max-width:639px){
  h1{font-size:28px;line-height:1.34;}
  h2{font-size:24px;}
  .page-hero{padding:28px 0 40px;}
  .hero-sub{font-size:16px;}
  .metric{padding:0 16px;}
  .metric .m-value{font-size:16px;}
  .float-card{left:10px;bottom:10px;width:calc(100% - 20px);}
  .hero-cta .btn{width:100%;}
}

/* ============ 通用板块 ============ */
.section{padding:56px 0;}
.section.tight{padding:40px 0;}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;margin-bottom:28px;flex-wrap:wrap;
}
.section-desc{color:var(--muted);font-size:15px;max-width:640px;margin:8px 0 0;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--sh-2);}
.card-pad{padding:24px;}
.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px;
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:16px;font-weight:600;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep);}
.badge-accent{background:var(--accent-soft);color:#C24A15;}
.badge-gray{background:var(--bg-2);color:var(--muted);}

/* 版本信息表 */
.info-table{width:100%;border-collapse:collapse;font-size:15px;}
.info-table th,.info-table td{
  text-align:left;padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.info-table thead th{background:var(--bg-2);font-weight:700;color:var(--ink-soft);}
.info-table tbody tr:nth-child(even){background:#FAFBFA;}
.info-table tbody th{font-weight:600;color:var(--ink-soft);width:150px;}
.info-table tbody tr:last-child th,
.info-table tbody tr:last-child td{border-bottom:0;}

/* 更新说明 */
.update-list{display:flex;flex-direction:column;gap:12px;margin-top:16px;}
.update-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;line-height:1.8;color:var(--ink-soft);
}
.update-list li i{color:var(--brand);margin-top:7px;font-size:12px;}

/* 功能清单 */
.feature-grid{
  display:grid;gap:14px;
  grid-template-columns:1fr;
}
@media (min-width:640px){
  .feature-grid{grid-template-columns:1fr 1fr;}
}
.feature-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  transition:border-color .2s ease,transform .2s ease;
}
.feature-item:hover{border-color:rgba(15,174,140,.35);transform:translateY(-2px);}
.feature-item i{color:var(--brand);font-size:15px;margin-top:6px;}
.feature-item strong{display:block;font-size:15px;font-weight:700;line-height:1.6;}
.feature-item span{display:block;font-size:13px;color:var(--muted);line-height:1.7;}

/* 下载卡 */
.sticky-card{position:sticky;top:96px;}
.download-card .dc-top{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.download-card .dc-ver{font-size:32px;font-weight:800;line-height:1.1;}
.dl-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.dl-row span:first-child{color:var(--muted);}
.dl-row span:last-child{font-weight:600;}
.dl-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.dl-note{font-size:13px;color:var(--muted);line-height:1.7;margin-top:14px;}

/* 安装步骤 */
.steps{
  display:grid;gap:20px;
  grid-template-columns:1fr;
  counter-reset:stepno;
}
@media (min-width:768px){
  .steps{grid-template-columns:repeat(3,1fr);}
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--sh-2);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);
  font-weight:800;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* FAQ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;
  background:none;border:0;
  font-size:16px;font-weight:700;text-align:left;color:var(--ink);
  cursor:pointer;min-height:44px;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .ico{
  flex:0 0 auto;
  color:var(--brand);font-size:14px;
  transition:transform .2s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s ease;
  font-size:15px;line-height:1.8;color:var(--muted);
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding-bottom:18px;margin:0;}

/* 相关阅读 */
.read-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:640px){.read-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.read-grid{grid-template-columns:repeat(3,1fr);}}
.read-card{display:flex;flex-direction:column;overflow:hidden;}
.read-card .thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  border-radius:var(--r-img);
  background:var(--brand-soft);
  margin:0;
}
.read-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.read-card:hover .thumb img{transform:scale(1.03);}
.read-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(transparent 45%,rgba(17,20,24,.55));
  opacity:0;transition:opacity .3s ease;
}
.read-card:hover .thumb::after{opacity:1;}
.read-card .thumb-tag{
  position:absolute;left:14px;bottom:12px;z-index:2;
  color:#fff;font-size:13px;font-weight:600;
  opacity:0;transform:translateY(6px);
  transition:opacity .3s ease,transform .3s ease;
}
.read-card:hover .thumb-tag{opacity:1;transform:translateY(0);}
.read-body{padding:18px 4px 4px;}
.read-body h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.read-body p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 12px;}
.read-meta{font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:center;}

/* CTA 深色区 */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  background:var(--dark);
  color:var(--dark-text);
  padding:52px 48px;
  display:flex;flex-wrap:wrap;gap:28px;
  align-items:center;justify-content:space-between;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.16;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-copy{max-width:620px;}
.cta-copy h2{color:#fff;margin-bottom:12px;}
.cta-copy p{color:#B9C6C1;font-size:15px;margin:0;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-band .text-link{color:#7FE3CB;}
.cta-band .text-link:hover{color:var(--accent);}
@media (max-width:639px){
  .cta-band{padding:32px 22px;border-radius:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:#C9D1CC;
  margin-top:64px;
  padding-top:56px;
}
.footer-grid{
  display:grid;
  gap:32px;
  grid-template-columns:1fr;
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;}
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark .ring{border-color:var(--brand);}
.footer-desc{font-size:14px;line-height:1.8;color:#A6B0AA;max-width:320px;margin-bottom:16px;}
.footer-rings{display:flex;gap:6px;align-items:center;}
.footer-rings i{
  display:block;border:1px solid rgba(15,174,140,.5);border-radius:50%;
}
.footer-rings i:nth-child(1){width:10px;height:10px;}
.footer-rings i:nth-child(2){width:16px;height:16px;}
.footer-rings i:nth-child(3){width:22px;height:22px;background:rgba(15,174,140,.18);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#C9D1CC;}
.footer-links a:hover{color:var(--brand);}
.footer-contact p{font-size:14px;line-height:1.9;color:#A6B0AA;margin:0 0 8px;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:44px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#8E9993;
}
.footer-bottom .tag-line{display:flex;align-items:center;gap:8px;}
.footer-bottom .tag-line i{color:var(--brand);font-size:11px;}

/* 图片失败占位 */
.img-fallback{
  background:var(--brand-soft);
  border-radius:var(--r-img);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-deep);
  min-height:160px;
}

@media (max-width:639px){
  :root{--gutter:16px;}
  .section{padding:36px 0;}
  .section.tight{padding:28px 0;}
  .card-pad,.panel{padding:18px;}
  .info-table tbody th{width:118px;font-size:14px;}
  .info-table th,.info-table td{padding:10px 12px;font-size:14px;}
  .download-card .dc-ver{font-size:26px;}
  .faq-q{font-size:15px;}
}
@media (min-width:640px) and (max-width:1023px){
  :root{--gutter:20px;}
  h1{font-size:32px;}
}

/* roulang page: category2 */
:root{
  --ink:#111418;
  --ink-soft:#2A2F36;
  --ring:#0FAE8C;
  --ring-dark:#0B8C70;
  --ring-soft:#E6F7F1;
  --orange:#FF7A3C;
  --orange-soft:#FFF1E9;
  --bg:#F6F7F4;
  --bg-2:#EEF1EC;
  --card:#FFFFFF;
  --line:#E3E7E0;
  --muted:#6B7280;
  --dark:#0E1116;
  --dark-text:#E9F7F2;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --r-card:16px;
  --r-btn:12px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(17,20,24,.04), 0 8px 24px rgba(17,20,24,.06);
  --sh-2:0 12px 32px rgba(17,20,24,.10);
  --t:.22s cubic-bezier(.4,0,.2,1);
  --pad-sec:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ring-dark);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--orange);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-x{margin-left:-12px;margin-right:-12px;margin-bottom:-24px;}
.grid-x > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px;}
.section{padding:var(--pad-sec) 0;}
.section--tight{padding:52px 0;}
.section--alt{background:var(--bg-2);}
.section--dark{background:var(--dark);color:var(--dark-text);}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section--ring{background:var(--ring-soft);}

/* ============ 顶部倒计时条 ============ */
.topbar{background:var(--ink);color:var(--dark-text);}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:48px;padding:6px 0;font-size:13px;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:999px;font-size:12px;line-height:16px;font-weight:600;
  background:var(--ring-soft);color:var(--ring-dark);white-space:nowrap;
}
.badge--orange{background:var(--orange-soft);color:#C64A15;}
.badge--gray{background:#EFF1EE;color:var(--muted);}
.countdown{display:flex;align-items:center;gap:8px;min-width:0;color:#C9D1CC;}
.cd-num{
  display:inline-block;min-width:34px;padding:2px 6px;border-radius:8px;
  background:#F6F7F4;color:var(--ink);text-align:center;font-weight:700;
  font-family:"SF Mono",ui-monospace,"JetBrains Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;font-size:14px;
}
.cd-sep{color:#6B7280;}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-right a{color:var(--dark-text);font-weight:500;}
.topbar-right a:hover{color:var(--ring);}
.topbar-right i{font-size:11px;margin-left:2px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#FFFFFF;
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:50%;
  display:grid;place-items:center;background:var(--ring-soft);
}
.brand-mark svg{width:24px;height:24px;}
.brand-name{
  font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.2;
}
.brand-name span{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;padding:24px 0;font-size:15px;font-weight:500;color:var(--ink-soft);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:2px;
  background:var(--ring);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--ring-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:210px;height:40px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;transition:var(--t);
}
.search-box:focus-within{border-color:var(--ring);background:#fff;box-shadow:0 0 0 4px rgba(15,174,140,.10);}
.search-box i{color:var(--muted);font-size:13px;}
.search-box input{
  width:100%;border:0;background:transparent;font-size:14px;outline:none;
}
.search-box input::placeholder{color:#9AA3A0;}
.link-login{font-size:15px;font-weight:500;color:var(--ink-soft);}
.link-login:hover{color:var(--ring-dark);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--ink);background:#fff;
}
.menu-toggle:hover{border-color:var(--ring);color:var(--ring-dark);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn i{font-size:13px;}
.btn-primary{background:var(--ring);color:#fff;box-shadow:0 6px 16px rgba(15,174,140,.22);}
.btn-primary:hover{background:#0DA07F;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,174,140,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ring-dark);border-color:rgba(15,174,140,.42);}
.btn-ghost:hover{border-color:var(--ring);color:var(--ring-dark);background:#F3FBF8;transform:translateY(-1px);}
.btn-accent{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(255,122,60,.24);}
.btn-accent:hover{background:#F26A2B;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,60,.30);}
.btn-text{padding:12px 4px;color:var(--ring-dark);font-weight:600;min-height:44px;}
.btn-text:hover{color:var(--orange);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;background:var(--bg);
  padding:64px 0 68px;
}
.hero::before{
  content:"";position:absolute;top:-140px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle, rgba(15,174,140,.14) 0 38%, rgba(15,174,140,.06) 39% 62%, transparent 63%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-90px;bottom:-160px;width:360px;height:360px;border-radius:50%;
  border:1px solid rgba(15,174,140,.18);pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--muted);margin-bottom:22px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);}
.hero h1{font-size:36px;line-height:1.22;letter-spacing:-.02em;max-width:640px;}
.hero h1 em{font-style:normal;color:var(--ring-dark);}
.hero-sub{margin-top:18px;font-size:16px;color:var(--muted);max-width:560px;line-height:1.85;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.stat-row{display:flex;flex-wrap:wrap;gap:0 28px;margin-top:36px;}
.stat{padding-right:28px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;padding-right:0;}
.stat-label{display:block;font-size:13px;color:var(--muted);margin-bottom:2px;}
.stat-value{font-size:20px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;
  border:1px solid var(--line);background:var(--ring-soft);
}
.float-card{
  position:absolute;left:-18px;bottom:-20px;width:250px;padding:18px 20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);
}
.float-card h4{font-size:14px;color:var(--muted);font-weight:600;}
.float-card strong{display:block;margin:6px 0 10px;font-size:26px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;}
.float-card strong small{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px;}
.progress{height:8px;border-radius:999px;background:var(--bg-2);overflow:hidden;}
.progress span{display:block;height:100%;width:78%;border-radius:999px;background:linear-gradient(90deg,var(--ring),#3FD3B3);}

/* ============ 通用板块头 ============ */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:38px;}
.section-head h2{font-size:28px;line-height:1.3;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--ring);
}
.section-head p{max-width:520px;color:var(--muted);font-size:15px;}
.section-head.center{flex-direction:column;align-items:center;text-align:center;}
.section-head.center h2{padding-left:0;}
.section-head.center h2::before{display:none;}
.section--dark .section-head p{color:#9FB3AC;}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  height:100%;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,174,140,.30);}
.card h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--ring-soft);color:var(--ring-dark);font-size:17px;margin-bottom:16px;
}
.card-icon.orange{background:var(--orange-soft);color:#C64A15;}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--ring-dark);}
.card-link i{font-size:11px;transition:transform var(--t);}
.card-link:hover i{transform:translateX(3px);}
.card--big{padding:30px;display:flex;flex-direction:column;}
.card--big .card-cover{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;margin-bottom:20px;background:var(--ring-soft);
}
.card--mini{padding:22px;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;line-height:18px;background:#EFF1EE;color:var(--muted);font-weight:500;
}
.tag--ring{background:var(--ring-soft);color:var(--ring-dark);}
.tag--orange{background:var(--orange-soft);color:#C64A15;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:0;}
.tl-item{position:relative;display:grid;grid-template-columns:150px 1fr;gap:28px;padding-bottom:34px;}
.tl-item::before{
  content:"";position:absolute;left:150px;top:34px;bottom:0;width:2px;background:var(--line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-date{
  font-size:14px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.tl-date span{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:2px;}
.tl-body{position:relative;padding-left:28px;}
.tl-body::before{
  content:"";position:absolute;left:-7px;top:9px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--ring);
}
.tl-item.is-done .tl-body::before{background:var(--ring);}
.tl-body h3{font-size:18px;margin-bottom:6px;}
.tl-body p{font-size:14.5px;color:var(--muted);}
.tl-body .tag{margin-top:10px;}

/* ============ 图墙 ============ */
.gallery-item{position:relative;border-radius:var(--r-img);overflow:hidden;display:block;background:var(--ring-soft);}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1);}
.gallery-item:hover img{transform:scale(1.03);}
.gallery-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(transparent 42%, rgba(17,20,24,.55));
  opacity:.9;transition:opacity var(--t);
}
.gallery-item:hover::after{opacity:1;}
.gallery-cap{
  position:absolute;left:18px;bottom:16px;z-index:2;color:#fff;font-size:15px;font-weight:600;
}
.gallery-tall img{aspect-ratio:4/3;}
.gallery-wide img{aspect-ratio:16/10;}
.gallery-title{margin-top:12px;font-size:14px;color:var(--muted);}

/* ============ 步骤 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:26px;height:2px;
  background:repeating-linear-gradient(90deg,var(--line) 0 10px,transparent 10px 18px);
}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-1);transition:var(--t);}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,174,140,.30);}
.step-num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--ring);color:#fff;font-weight:800;font-size:17px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;box-shadow:0 0 0 6px var(--ring-soft);
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);}

/* ============ 报名 CTA ============ */
.cta-band{
  background:var(--dark);color:var(--dark-text);border-radius:24px;padding:46px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(15,174,140,.28);
}
.cta-band h2{font-size:26px;color:#fff;line-height:1.35;margin-bottom:12px;}
.cta-band p{color:#9FB3AC;font-size:15px;max-width:440px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;font-weight:600;color:#DCE7E2;}
.field input,.field textarea{
  height:46px;padding:0 16px;border-radius:var(--r-btn);border:1px solid #2A333A;
  background:#161B21;color:#fff;font-size:15px;outline:none;transition:var(--t);width:100%;
}
.field textarea{height:auto;padding:12px 16px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#6B7A73;}
.field input:focus,.field textarea:focus{border-color:var(--ring);box-shadow:0 0 0 4px rgba(15,174,140,.16);}
.field .hint{font-size:13px;color:#7C8C85;}
.field.has-error input{border-color:var(--err);}
.field .err-msg{display:none;font-size:14px;color:#F87171;}
.field.has-error .err-msg{display:block;}
.code-row{display:flex;gap:10px;}
.code-row input{flex:1;}
.code-row .btn{flex:0 0 auto;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ring-dark);}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--muted);font-size:13px;transition:var(--t);
}
.faq-item[open] .faq-icon{background:var(--ring);border-color:var(--ring);color:#fff;transform:rotate(180deg);}
.faq-answer{padding:0 0 20px;font-size:15px;color:var(--muted);line-height:1.85;max-width:760px;}
.faq-answer a{text-decoration:underline;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-text);padding:64px 0 0;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-name span{color:#7C8C85;}
.footer-desc{font-size:14px;color:#9FB3AC;line-height:1.85;margin:16px 0 18px;max-width:290px;}
.ring-deco{display:flex;gap:6px;margin-bottom:14px;}
.ring-deco i{width:12px;height:12px;border-radius:50%;border:1.5px solid rgba(15,174,140,.55);display:block;}
.footer-ver{font-size:13px;color:#7C8C85;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:#C9D1CC;}
.footer-col ul a:hover{color:var(--ring);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#C9D1CC;margin-bottom:12px;line-height:1.6;}
.footer-contact i{color:var(--ring);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7C8C85;
}
.footer-bottom a{color:#9FB3AC;}
.footer-bottom a:hover{color:var(--ring);}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,17,22,.5);opacity:0;visibility:hidden;
  transition:var(--t);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink);}
.drawer .search-box{width:100%;margin-bottom:10px;}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{
  padding:15px 4px;font-size:16px;font-weight:500;color:var(--ink-soft);
  border-bottom:1px solid var(--line);min-height:44px;display:flex;align-items:center;
}
.drawer nav a.is-active{color:var(--ring-dark);font-weight:700;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:18px;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 20px;}
}
@media (max-width:1023px){
  :root{--pad-sec:56px;}
  .nav-links,.search-box.header-search,.link-login{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{min-height:64px;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:30px;}
  .hero-media{margin-top:44px;}
  .float-card{left:auto;right:14px;bottom:-18px;width:220px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
  .tl-item{grid-template-columns:120px 1fr;gap:20px;}
  .tl-item::before{left:120px;}
  .cta-band{padding:34px;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:767px){
  :root{--pad-sec:44px;}
  .container{padding:0 16px;}
  .grid-x{margin-left:-8px;margin-right:-8px;margin-bottom:-16px;}
  .grid-x > .cell{padding-left:8px;padding-right:8px;margin-bottom:16px;}
  .topbar-right a:first-child{display:none;}
  .topbar-inner{font-size:12px;}
  .cd-num{min-width:28px;font-size:13px;padding:2px 4px;}
  .hero h1{font-size:28px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .stat{padding-right:18px;}
  .stat-value{font-size:18px;}
  .section-head h2{font-size:23px;}
  .cta-band{padding:26px 22px;border-radius:18px;}
  .cta-band h2{font-size:21px;}
  .form-grid{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:1fr;gap:8px;}
  .tl-item::before{display:none;}
  .tl-body{padding-left:24px;}
  .faq-item summary{font-size:15px;padding:16px 0;}
  .site-footer{padding-top:48px;}
  .steps{grid-template-columns:1fr;}
}
@media (max-width:519px){
  .hero-cta .btn{width:100%;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .stat-row{gap:0 16px;}
  .stat{padding-right:16px;}
  .float-card{position:static;width:100%;margin-top:14px;}
  .card{padding:20px;}
}

/* roulang page: category3 */
:root{
  --ink:#111418;
  --accent:#0FAE8C;
  --accent-strong:#0C9A7C;
  --accent-soft:#E6F7F1;
  --orange:#FF7A3C;
  --orange-soft:#FFF1E9;
  --bg:#F6F7F4;
  --bg-2:#EEF1EC;
  --card:#FFFFFF;
  --border:#E3E7E0;
  --muted:#6B7280;
  --dark:#0E1116;
  --dark-soft:#171B21;
  --dark-text:#E9F7F2;
  --success:#16A34A;
  --warning:#F59E0B;
  --error:#DC2626;
  --info:#64748B;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:18px;
  --shadow-1:0 1px 2px rgba(17,20,24,.04),0 8px 24px rgba(17,20,24,.06);
  --shadow-2:0 12px 32px rgba(17,20,24,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.2px;}
h1{font-size:36px;line-height:1.22;font-weight:800;}
h2{font-size:28px;line-height:1.3;}
h3{font-size:22px;line-height:1.36;}
h4{font-size:18px;line-height:1.5;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;background:var(--accent-soft);border-radius:var(--radius-img);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ============ 顶部倒计时条 ============ */
.countdown-bar{background:var(--ink);color:#fff;font-size:14px;}
.countdown-inner{display:flex;align-items:center;gap:16px;min-height:48px;flex-wrap:nowrap;}
.cd-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--orange-soft);color:var(--orange);font-size:12px;font-weight:700;letter-spacing:.6px;white-space:nowrap;
}
.cd-label{color:#9AA3A9;white-space:nowrap;}
.cd-clock{display:flex;align-items:center;gap:6px;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}
.cd-cell{
  display:inline-flex;align-items:baseline;gap:2px;
  background:#1D2229;border:1px solid #262C34;border-radius:8px;
  padding:3px 9px;font-weight:700;font-size:14px;color:#fff;
}
.cd-cell em{font-style:normal;font-size:11px;color:#8E979D;margin-left:2px;}
.cd-right{margin-left:auto;display:flex;align-items:center;gap:16px;white-space:nowrap;}
.cd-link{color:#D5DBD8;font-size:14px;display:inline-flex;align-items:center;gap:4px;}
.cd-link:hover{color:var(--accent);}
.cd-link.is-hot{color:var(--orange);font-weight:600;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;white-space:nowrap;flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{
  position:relative;width:32px;height:32px;flex:0 0 32px;border-radius:50%;
  background:radial-gradient(circle at center,#fff 0 22%,var(--accent-soft) 22% 44%,#fff 44% 62%,var(--accent-soft) 62% 100%);
  border:2px solid var(--accent);
  box-shadow:inset 0 0 0 3px #fff;
}
.brand-text{letter-spacing:.2px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:#39414A;border-radius:10px;
}
.nav-link:hover{color:var(--accent);background:var(--accent-soft);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;height:40px;padding:0 6px 0 14px;
  background:var(--bg-2);border:1px solid var(--border);border-radius:999px;
}
.nav-search input{
  width:132px;height:36px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.nav-search input::placeholder{color:#98A0A6;}
.nav-search button{
  width:32px;height:32px;border:0;border-radius:50%;background:transparent;color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s ease;
}
.nav-search button:hover{background:rgba(15,174,140,.14);}
.nav-text-btn{
  display:inline-flex;align-items:center;height:40px;padding:0 6px;font-size:15px;color:#39414A;
}
.nav-text-btn:hover{color:var(--accent);}
.hamburger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(17,20,24,.45);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;width:min(86vw,340px);
  background:#fff;border-left:1px solid var(--border);padding:20px;
  transform:translateX(101%);transition:transform .28s ease;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--border);border-radius:12px;background:#fff;
  font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-search{display:flex;align-items:center;height:44px;border:1px solid var(--border);border-radius:12px;padding:0 12px;background:var(--bg-2);margin-bottom:18px;}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;font-family:inherit;height:42px;}
.drawer-search span{color:var(--accent);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 14px;
  border-radius:12px;color:#39414A;font-size:15px;border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--accent-soft);color:var(--accent);}
.drawer-nav a.is-active{background:var(--accent-soft);color:var(--accent);font-weight:700;border-color:rgba(15,174,140,.35);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;min-height:44px;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(15,174,140,.22);}
.btn-primary:hover{background:var(--accent-strong);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(15,174,140,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--accent);border-color:rgba(15,174,140,.45);}
.btn-ghost:hover{background:var(--accent-soft);color:var(--accent-strong);border-color:var(--accent);transform:translateY(-1px);}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,122,60,.22);}
.btn-orange:hover{background:#F26A2B;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,60,.28);}
.btn-dark{background:#fff;color:var(--ink);border-color:rgba(255,255,255,.35);}
.btn-dark:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn .arrow{font-size:16px;line-height:1;transition:transform .2s ease;}
.btn:hover .arrow{transform:translateX(3px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);}
.link-arrow:hover{color:var(--orange);}
.link-arrow:hover .arrow{transform:translateX(3px);}
.link-arrow .arrow{transition:transform .2s ease;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.4px;white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);color:var(--accent-strong);}
.badge-orange{background:var(--orange-soft);color:var(--orange);}
.badge-gray{background:var(--bg-2);color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--muted);font-size:13px;cursor:pointer;
  transition:all .18s ease;
}
.tag:hover,.tag.is-active{background:var(--accent-soft);border-color:rgba(15,174,140,.4);color:var(--accent-strong);font-weight:600;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FBFCFA 0%,var(--bg) 100%);padding:62px 0 74px;}
.hero::before{
  content:"";position:absolute;right:-130px;top:-140px;width:430px;height:430px;border-radius:50%;
  border:1px solid rgba(15,174,140,.2);box-shadow:0 0 0 44px rgba(15,174,140,.05);pointer-events:none;
}
.hero h1{margin:18px 0 16px;max-width:14em;}
.hero-sub{font-size:17px;color:#4B535C;line-height:1.9;max-width:38em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;}
.hero-stats li{
  padding:0 24px;border-left:1px solid var(--border);
  display:flex;flex-direction:column;gap:2px;
}
.hero-stats li:first-child{padding-left:0;border-left:0;}
.stat-label{font-size:13px;color:var(--muted);}
.stat-value{font-size:17px;font-weight:700;color:var(--ink);}
.hero-visual{position:relative;margin:0;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;
  box-shadow:var(--shadow-2);
}
.float-card{
  position:absolute;left:-10px;bottom:-24px;width:min(280px,86%);
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:16px 18px;box-shadow:var(--shadow-2);
}
.float-title{font-size:13px;color:var(--muted);margin-bottom:4px;}
.float-num{
  font-size:28px;font-weight:800;color:var(--ink);line-height:1.1;margin-bottom:10px;
  font-variant-numeric:tabular-nums;font-family:ui-monospace,"SF Mono",Menlo,Consolas,var(--font-sans);
}
.progress{height:8px;border-radius:999px;background:var(--bg-2);overflow:hidden;margin-bottom:8px;}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),#4ED0B4);}
.float-note{font-size:12px;color:var(--muted);}

/* ============ 通用板块 ============ */
.section{padding:76px 0;}
.section-alt{background:var(--bg-2);}
.section-dark{background:var(--dark);color:var(--dark-text);}
.section-dark h2,.section-dark h3{color:#fff;}
.section-dark p{color:#A9C4BB;}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head h2{position:relative;padding-left:16px;margin-bottom:12px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:3px;background:var(--accent);
}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section-dark .section-head p{color:#9FBDB3;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:32px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--accent),rgba(15,174,140,.15));
}
.tl-item{position:relative;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-32px;top:6px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);box-shadow:0 0 0 4px rgba(15,174,140,.12);
}
.tl-item.is-past .tl-dot{background:var(--accent);}
.tl-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-body:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--shadow-2);}
.tl-date{font-size:13px;color:var(--accent-strong);font-weight:700;letter-spacing:.4px;margin-bottom:6px;}
.tl-body h3{font-size:19px;margin-bottom:8px;}
.tl-body p{font-size:15px;color:var(--muted);margin:0;}

/* ============ 图墙 ============ */
.gallery-item{
  position:relative;display:block;border-radius:var(--radius-img);overflow:hidden;
  background:var(--accent-soft);
}
.gallery-item img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;
  transition:transform .45s ease;background:var(--accent-soft);
}
.gallery-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(17,20,24,0) 46%,rgba(17,20,24,.58) 100%);
  opacity:.92;transition:opacity .3s ease;
}
.gallery-item:hover img{transform:scale(1.03);}
.gallery-item:hover::after{opacity:1;}
.gallery-tag{
  position:absolute;left:16px;bottom:14px;z-index:2;color:#fff;font-size:14px;font-weight:600;
  text-shadow:0 1px 6px rgba(0,0,0,.3);
}
.gallery-tag small{display:block;font-size:12px;font-weight:400;color:rgba(255,255,255,.82);margin-top:2px;}
.gallery-cap{font-size:14px;color:var(--muted);margin:10px 0 0;}
.gallery .cell{margin-bottom:24px;}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--shadow-2);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--accent-soft);color:var(--accent-strong);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

/* ============ 奖励卡 ============ */
.reward-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.reward{
  display:flex;gap:14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.reward:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--shadow-2);}
.reward-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;color:var(--accent-strong);font-weight:800;font-size:18px;
}
.reward h4{font-size:17px;margin-bottom:6px;}
.reward p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;}

/* ============ 报名 CTA ============ */
.signup{background:var(--accent-soft);}
.signup-panel{
  display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;
  background:#fff;border:1px solid rgba(15,174,140,.28);border-radius:22px;
  padding:38px 40px;box-shadow:var(--shadow-1);
}
.signup-panel h2{margin-bottom:12px;}
.signup-panel .lead{color:var(--muted);font-size:15px;margin-bottom:16px;}
.mini-list{display:flex;flex-direction:column;gap:10px;}
.mini-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#4B535C;}
.mini-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--accent);
}
.signup-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-field{display:flex;flex-direction:column;gap:6px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;font-weight:600;color:var(--ink);}
.form-field input{
  height:46px;border:1px solid var(--border);border-radius:12px;padding:0 14px;
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field input::placeholder{color:#A2A9AE;}
.form-field input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(15,174,140,.14);}
.form-hint{display:none;font-size:13px;color:var(--error);margin:0;}
.form-field.has-error input{border-color:var(--error);box-shadow:0 0 0 4px rgba(220,38,38,.10);}
.form-field.has-error .form-hint{display:block;}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--muted);margin:0;}
.form-success{
  grid-column:1 / -1;display:none;align-items:center;gap:8px;
  background:#EAF9F0;border:1px solid rgba(22,163,74,.3);color:var(--success);
  border-radius:12px;padding:10px 14px;font-size:14px;
}
.form-success.is-visible{display:flex;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.85fr 1.35fr;gap:44px;align-items:start;}
.faq-list{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink);font-family:inherit;line-height:1.6;
}
.faq-q:hover{color:var(--accent-strong);}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--border);transition:transform .25s ease,border-color .25s ease,background-color .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent-strong);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:opacity .25s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--accent-soft);border-color:rgba(15,174,140,.4);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .28s ease,opacity .22s ease;}
.faq-item.is-open .faq-a{max-height:520px;opacity:1;}
.faq-a p{font-size:15px;color:var(--muted);line-height:1.85;padding-bottom:18px;margin:0;}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--dark);color:var(--dark-text);padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:#9FBDB3;margin:0;font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C9D1CC;padding:58px 0 26px;font-size:14px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{border-color:var(--accent);background:radial-gradient(circle at center,#0E1116 0 22%,rgba(15,174,140,.35) 22% 44%,#0E1116 44% 62%,rgba(15,174,140,.2) 62% 100%);box-shadow:inset 0 0 0 3px #0E1116;}
.footer-desc{color:#8E9A95;font-size:14px;line-height:1.8;margin:0 0 16px;max-width:26em;}
.footer-rings{display:flex;gap:8px;}
.footer-rings span{width:12px;height:12px;border-radius:50%;border:1px solid rgba(15,174,140,.55);}
.footer-rings span:nth-child(2){border-color:rgba(15,174,140,.35);}
.footer-rings span:nth-child(3){border-color:rgba(15,174,140,.18);}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.6px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#C9D1CC;font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.footer-meta{display:flex;flex-direction:column;gap:10px;color:#8E9A95;}
.footer-meta strong{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid #1E242B;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:#78837E;font-size:13px;
}
.footer-bottom a{color:#9AA6A0;}
.footer-bottom a:hover{color:var(--accent);}
.footer-grid > .cell{margin-bottom:28px;}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-links,.nav-search,.nav-text-btn{display:none;}
  .hamburger{display:inline-flex;}
  .header-inner{min-height:64px;gap:12px;}
  .header-actions{margin-left:auto;}
  h1{font-size:30px;}
  h2{font-size:25px;}
  .hero{padding:44px 0 56px;}
  .hero-visual{margin-top:36px;}
  .hero-visual img{aspect-ratio:16/10;}
  .float-card{position:static;width:100%;margin-top:16px;box-shadow:var(--shadow-1);}
  .section{padding:52px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .reward-list{grid-template-columns:1fr 1fr;}
  .signup-panel{grid-template-columns:1fr;padding:28px 24px;gap:26px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:640px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  h1{font-size:28px;line-height:1.28;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;max-width:9em;}
  .cd-label{display:none;}
  .cd-clock .cd-cell{padding:3px 7px;font-size:13px;}
  .cd-cell em{display:none;}
  .cd-right .cd-link:first-child{display:none;}
  .hero-stats{gap:14px 0;}
  .hero-stats li{padding:0 14px;}
  .hero-stats li:nth-child(3){padding-left:0;border-left:0;}
  .steps{grid-template-columns:1fr;}
  .reward-list{grid-template-columns:1fr;}
  .signup-form{grid-template-columns:1fr;}
  .section{padding:40px 0;}
  .timeline{padding-left:26px;}
  .timeline::before{left:7px;}
  .tl-dot{left:-26px;width:16px;height:16px;}
  .cta-band{padding:44px 0;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media screen and (max-width:380px){
  .brand-text{font-size:14px;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --ink:#111418;
  --ink-2:#3A4149;
  --ring:#0FAE8C;
  --ring-dark:#0B8A70;
  --ring-soft:#E6F7F1;
  --warm:#FF7A3C;
  --warm-soft:#FFF1E9;
  --bg:#F6F7F4;
  --bg-2:#EEF1EC;
  --card:#FFFFFF;
  --border:#E3E7E0;
  --muted:#6B7280;
  --dark:#0E1116;
  --dark-2:#111418;
  --dark-text:#E9F7F2;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --info:#64748B;
  --r-xl:24px;
  --r-card:16px;
  --r-btn:12px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(17,20,24,.04), 0 8px 24px rgba(17,20,24,.06);
  --sh-2:0 12px 32px rgba(17,20,24,.10);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

/* ============ 基础 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease,box-shadow .18s ease}
a:hover{color:var(--ring)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink)}
p{margin:0}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1320px}}
@media (max-width:1023px){.container{padding:0 20px}}
@media (max-width:639px){.container{padding:0 16px}}
.section{padding:64px 0}
.section-tight{padding:44px 0}
@media (max-width:1023px){.section{padding:48px 0}.section-tight{padding:36px 0}}
@media (max-width:639px){.section{padding:36px 0}.section-tight{padding:30px 0}}

.sec-title{position:relative;padding-left:16px;font-size:28px;line-height:1.35;font-weight:800;margin:0 0 12px}
.sec-title::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:.92em;border-radius:3px;background:var(--ring)}
.sec-desc{color:var(--muted);font-size:16px;line-height:1.8;max-width:760px}
.sec-head{margin-bottom:32px}
@media (max-width:639px){
  .sec-title{font-size:22px}
  .sec-desc{font-size:15px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1.2;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:13px}
.btn-primary{background:var(--ring);color:#fff;box-shadow:0 6px 18px rgba(15,174,140,.22)}
.btn-primary:hover,.btn-primary:focus{background:var(--ring-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(15,174,140,.28)}
.btn-ghost{background:#fff;color:var(--ring-dark);border:1px solid rgba(15,174,140,.45)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ring-soft);color:var(--ring-dark);transform:translateY(-1px)}
.btn-accent{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(255,122,60,.24)}
.btn-accent:hover,.btn-accent:focus{background:#F0692B;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,60,.3)}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--ring-dark);font-weight:700;font-size:15px}
.btn-text i{font-size:12px;transition:transform .18s ease}
.btn-text:hover{color:var(--warm)}
.btn-text:hover i{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;line-height:1;
}
.badge-ring{background:var(--ring-soft);color:var(--ring-dark)}
.badge-warm{background:var(--warm-soft);color:#E2601F}
.badge-gray{background:var(--bg-2);color:var(--muted)}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;
  background:#fff;border:1px solid var(--border);font-size:13px;color:#4B5563;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease,transform .18s ease;
}
.chip:hover{border-color:rgba(15,174,140,.5);color:var(--ring-dark);background:var(--ring-soft);transform:translateY(-1px)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;background:#fff;
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:50%;
  border:2px solid var(--ring);display:grid;place-items:center;flex-shrink:0;
}
.brand-mark::before{content:"";width:17px;height:17px;border-radius:50%;border:2px solid rgba(15,174,140,.5)}
.brand-mark::after{content:"";position:absolute;width:6px;height:6px;border-radius:50%;background:var(--warm)}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.2px;white-space:nowrap;color:var(--ink)}
.brand:hover .brand-text{color:var(--ring-dark)}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;padding:10px 13px;font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--ring);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:800}
.nav-link.is-active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;width:212px;padding:0 12px;
  background:var(--bg-2);border:1px solid var(--border);border-radius:10px;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.nav-search input::placeholder{color:#9AA1A8}
.nav-search:focus-within{border-color:var(--ring);background:#fff;box-shadow:0 0 0 3px rgba(15,174,140,.12)}
.link-login{font-size:15px;font-weight:600;color:var(--ink-2);padding:8px 4px;white-space:nowrap}
.link-login:hover{color:var(--ring-dark)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:rgba(15,174,140,.5);color:var(--ring-dark)}

@media (max-width:1180px){
  .nav-search{width:170px}
  .nav-link{padding:10px 10px;font-size:14px}
  .nav-link::after{left:10px;right:10px}
}
@media (max-width:1023px){
  .nav-links,.nav-search,.link-login{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;gap:12px}
}
@media (max-width:639px){
  .brand-text{font-size:14.5px;white-space:normal;line-height:1.3;max-width:170px}
  .header-actions .btn-accent{display:none}
}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(17,20,24,.45);z-index:190;
  opacity:0;pointer-events:none;transition:opacity .26s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:200;
  background:#fff;padding:22px 20px 32px;overflow-y:auto;
  transform:translateX(104%);transition:transform .28s ease;
  box-shadow:-12px 0 32px rgba(17,20,24,.14);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.drawer-head .brand-text{font-size:15px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);display:grid;place-items:center;font-size:16px}
.drawer-close:hover{color:var(--ring-dark);border-color:rgba(15,174,140,.5)}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;margin:18px 0 6px;padding:0 12px;
  background:var(--bg-2);border:1px solid var(--border);border-radius:12px;
}
.drawer-search i{color:var(--muted);font-size:13px}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.drawer-nav{display:flex;flex-direction:column;margin:14px 0 22px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 6px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--border);
}
.drawer-nav a:hover{color:var(--ring-dark)}
.drawer-nav a.is-active{color:var(--ring-dark);font-weight:800}
.drawer-nav a.is-active::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--ring)}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:22px 0 0}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ring-dark)}
.crumbs .sep{color:#C4CAC3}
.crumbs .now{color:var(--ink-2);font-weight:600}

/* ============ 帮助中心 Hero ============ */
.hero-help{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F6F7F4 100%);padding:40px 0 56px}
.hero-rings{position:absolute;right:3%;top:-70px;width:440px;height:440px;pointer-events:none}
.hero-rings span{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(15,174,140,.16)}
.hero-rings span:nth-child(2){inset:14%}
.hero-rings span:nth-child(3){inset:28%;border-color:rgba(255,122,60,.16)}
.hero-rings span:nth-child(4){inset:42%;border-color:rgba(15,174,140,.22)}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero-title{font-size:36px;line-height:1.32;font-weight:800;letter-spacing:.2px;margin:18px 0 14px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:700px}
.help-search{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:8px 8px 8px 18px;box-shadow:var(--sh-1);
  max-width:720px;margin:26px 0 18px;transition:border-color .18s ease,box-shadow .18s ease;
}
.help-search:focus-within{border-color:var(--ring);box-shadow:0 0 0 4px rgba(15,174,140,.12)}
.help-search i{color:var(--muted);font-size:15px}
.help-search input{flex:1;min-width:0;border:0;outline:none;height:44px;font-size:16px;background:transparent}
.help-search input::placeholder{color:#9AA1A8}
.hot-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.hot-tags .label{font-size:13px;color:var(--muted)}
@media (max-width:1023px){
  .hero-title{font-size:30px}
  .hero-rings{width:340px;height:340px;right:-60px}
}
@media (max-width:639px){
  .hero-help{padding:24px 0 40px}
  .hero-title{font-size:26px;line-height:1.36}
  .hero-sub{font-size:15.5px}
  .help-search{border-radius:12px;padding:6px 6px 6px 14px}
  .help-search input{height:42px;font-size:15px}
  .hero-rings{display:none}
}

/* ============ 自助服务卡 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.qcard{
  display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.qcard:hover{transform:translateY(-2px);border-color:rgba(15,174,140,.3);box-shadow:var(--sh-2);color:inherit}
.qcard .q-ico{
  width:46px;height:46px;border-radius:14px;background:var(--ring-soft);color:var(--ring-dark);
  display:grid;place-items:center;font-size:19px;margin-bottom:16px;
}
.qcard h3{font-size:18px;line-height:1.5;margin-bottom:8px}
.qcard p{font-size:14px;line-height:1.85;color:var(--muted);min-height:52px}
.qcard .q-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ring-dark);margin-top:12px}
.qcard:hover .q-more{color:var(--warm)}
.qcard .q-more i{font-size:11px;transition:transform .18s ease}
.qcard:hover .q-more i{transform:translateX(3px)}
@media (max-width:1023px){.quick-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){
  .quick-grid{grid-template-columns:1fr;gap:14px}
  .qcard{padding:20px}
  .qcard p{min-height:0}
}

/* ============ 服务数据条 ============ */
.status-strip{
  background:var(--ring-soft);border:1px solid rgba(15,174,140,.22);border-radius:var(--r-xl);
  padding:28px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.status-item{position:relative;padding-left:18px}
.status-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;border-radius:2px;background:rgba(15,174,140,.35)}
.status-num{font-size:26px;font-weight:800;color:var(--ring-dark);line-height:1.3;font-variant-numeric:tabular-nums}
.status-label{font-size:13px;color:#4C7C6F;margin-top:4px}
@media (max-width:1023px){
  .status-strip{grid-template-columns:repeat(2,1fr);padding:22px 24px}
}
@media (max-width:639px){
  .status-strip{grid-template-columns:1fr;gap:16px}
  .status-num{font-size:22px}
}

/* ============ 帮助主体：目录 + FAQ ============ */
.help-body{display:grid;grid-template-columns:264px 1fr;gap:36px;align-items:start}
.toc{
  position:sticky;top:96px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);padding:20px 16px;box-shadow:var(--sh-1);
}
.toc-title{font-size:13px;font-weight:800;letter-spacing:1px;color:var(--muted);padding:0 10px 12px;border-bottom:1px solid var(--border);margin-bottom:10px}
.toc a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;font-weight:600;
  color:#4B5563;border-left:2px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.toc a:hover{background:var(--bg-2);color:var(--ink)}
.toc a.is-current{background:var(--ring-soft);color:var(--ring-dark);border-left-color:var(--ring)}

.faq-group{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:4px 24px 6px;margin-bottom:22px;box-shadow:var(--sh-1);scroll-margin-top:100px;
}
.faq-group > header{display:flex;align-items:center;gap:12px;padding:20px 0 14px;border-bottom:1px solid var(--border)}
.faq-group > header .g-ico{
  width:34px;height:34px;border-radius:10px;background:var(--bg-2);color:var(--ring-dark);
  display:grid;place-items:center;font-size:14px;flex-shrink:0;
}
.faq-group h3{font-size:19px;line-height:1.5}
.faq-group .g-count{font-size:12px;color:var(--muted);margin-left:auto;white-space:nowrap}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:16px;font-weight:700;line-height:1.7;color:var(--ink);
  cursor:pointer;list-style:none;transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:20px;font-weight:400;line-height:1.4;color:var(--ring);
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary::after{content:"−";color:var(--warm)}
.faq-item summary:hover{color:var(--ring-dark)}
.faq-answer{padding:0 34px 20px 0;font-size:15px;line-height:1.9;color:var(--muted);max-width:760px}
.faq-answer strong{color:var(--ink-2)}

@media (max-width:1023px){
  .help-body{grid-template-columns:1fr;gap:20px}
  .toc{position:static;padding:16px 14px}
  .toc nav{display:flex;flex-wrap:wrap;gap:8px}
  .toc a{border-left:0;background:var(--bg-2);border-radius:999px;padding:8px 14px;font-size:13px}
  .toc a.is-current{background:var(--ring-soft);color:var(--ring-dark);border-left:0}
  .toc-title{padding-left:4px}
}
@media (max-width:639px){
  .faq-group{padding:2px 18px 4px;border-radius:14px}
  .faq-item summary{font-size:15.5px;padding:16px 0}
  .faq-answer{padding-right:8px;font-size:14.5px}
  .faq-group h3{font-size:17px}
}

/* ============ 仍未解决 CTA ============ */
.cta-panel{
  background:var(--dark);border-radius:var(--r-xl);padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
  color:var(--dark-text);position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(15,174,140,.22);pointer-events:none;
}
.cta-panel h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:14px}
.cta-panel p{color:#A7B4AF;font-size:15.5px;line-height:1.9;max-width:460px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#C9D1CC}
.cta-points i{color:var(--ring);font-size:13px;margin-top:6px}
.cta-note{margin-top:20px;font-size:13px;color:#7E8C86}
.cta-form{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-card);padding:26px 24px;
  box-shadow:0 18px 44px rgba(0,0,0,.28);
}
.cta-form h3{font-size:18px;margin-bottom:6px}
.cta-form .f-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px}

.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;outline:none;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A2A9AE}
.field input:focus,.field textarea:focus{border-color:var(--ring);box-shadow:0 0 0 3px rgba(15,174,140,.14)}
.field .hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.field.has-error input,.field.has-error textarea{border-color:var(--err);box-shadow:0 0 0 3px rgba(220,38,38,.1)}
.field .err-text{display:none;font-size:14px;color:var(--err);margin-top:6px}
.field.has-error .err-text{display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:1023px){
  .cta-panel{grid-template-columns:1fr;padding:34px 24px;gap:28px;border-radius:20px}
  .cta-panel h2{font-size:24px}
}
@media (max-width:639px){
  .form-row{grid-template-columns:1fr;gap:0}
  .cta-form{padding:20px 18px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C9D1CC;margin-top:72px;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{border-color:var(--ring)}
.footer-brand .brand-text{color:#fff;font-size:16px}
.footer-about{font-size:14px;line-height:1.9;color:#96A29C;max-width:320px}
.footer-rings{display:flex;gap:8px;margin-top:18px}
.footer-rings i{width:14px;height:14px;border-radius:50%;border:1px solid rgba(15,174,140,.5);display:block}
.footer-rings i:nth-child(2){border-color:rgba(255,122,60,.55)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:800}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#C9D1CC}
.footer-col a:hover{color:var(--ring)}
.footer-contact li{font-size:14px;color:#96A29C;display:flex;gap:9px;align-items:flex-start;line-height:1.8}
.footer-contact i{color:var(--ring);font-size:13px;margin-top:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:13px;color:#7E8C86;
}
.footer-bottom a{color:#7E8C86}
.footer-bottom a:hover{color:var(--ring)}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .site-footer{padding-top:44px;margin-top:56px}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}