/* roulang page: index */
:root{
  --ink:#0B0D0B;
  --ink-soft:#1C211D;
  --field:#103A2C;
  --accent:#D8FF3E;
  --accent-ink:#0B0D0B;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:rgba(11,13,11,.10);
  --muted:#6B7168;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(11,13,11,.04);
  --shadow-2:0 12px 32px rgba(11,13,11,.09);
  --section-y:clamp(64px,9vw,128px);
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;

  --bs-primary:#103A2C;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1C211D;
  --bs-link-color:#103A2C;
  --bs-link-hover-color:#0B0D0B;
  --bs-border-color:rgba(11,13,11,.10);
  --bs-border-radius:14px;
  --bs-font-sans-serif:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--field);text-decoration:none;transition:color .25s ease,border-color .25s ease}
a:hover{color:var(--ink)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--field);outline-offset:3px;border-radius:6px}

.wrap{max-width:1320px;margin:0 auto;padding:0 clamp(20px,5vw,72px)}
.section{padding:var(--section-y) 0}
.section-tight{padding:48px 0}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1050;
  padding:14px 0;
  transition:padding .3s cubic-bezier(.2,.7,.2,1);
}
.site-header.shrink{padding:8px 0}
.nav-capsule{
  display:flex;align-items:center;gap:18px;
  max-width:1320px;margin:0 auto;
  padding:10px 12px 10px 20px;
  background:rgba(246,244,239,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  transition:background .3s ease,box-shadow .3s ease,height .3s ease;
}
.site-header.shrink .nav-capsule{background:rgba(246,244,239,.92);box-shadow:0 8px 26px rgba(11,13,11,.08)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--field),var(--ink));
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 7px;border-left:3px solid var(--accent);border-bottom:3px solid var(--accent);
  transform:skewX(-12deg);
}
.brand-text{font-weight:800;color:var(--ink);font-size:16px;letter-spacing:-.01em;line-height:1.2}
.brand-text em{font-style:normal;color:var(--field)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 15px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  transition:background .25s ease,color .25s ease;
}
.nav-links a:hover{background:rgba(16,58,44,.08);color:var(--ink)}
.nav-links a.active{color:var(--ink);background:rgba(216,255,62,.42)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--field);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;
  background:var(--accent);color:var(--accent-ink);
  font-size:14.5px;font-weight:700;white-space:nowrap;
  border:1px solid rgba(11,13,11,.08);
  transition:transform .25s ease,box-shadow .25s ease;
}
.nav-cta:hover{color:var(--accent-ink);transform:translateY(-1px);box-shadow:0 10px 22px rgba(11,13,11,.14)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  color:var(--ink);font-size:17px;
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
}
.offcanvas-mobile{background:var(--ink);color:var(--paper);width:min(88vw,360px)}
.offcanvas-mobile .offcanvas-header{border-bottom:1px solid rgba(246,244,239,.14);padding:20px 22px}
.offcanvas-mobile .brand-text{color:var(--paper)}
.offcanvas-mobile .brand-text em{color:var(--accent)}
.offcanvas-mobile .btn-close{filter:invert(1) grayscale(1);opacity:.75}
.mobile-list{padding:10px 0}
.mobile-list a{
  display:flex;align-items:center;height:56px;padding:0 22px;
  color:rgba(246,244,239,.82);font-size:16px;font-weight:600;
  border-left:3px solid transparent;
}
.mobile-list a:hover,.mobile-list a.active{color:var(--paper);background:rgba(246,244,239,.06);border-left-color:var(--accent)}
.mobile-cta{margin:18px 22px 26px;display:flex;justify-content:center;
  padding:14px 20px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-weight:700}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:78vh;display:flex;align-items:flex-end;
  padding:150px 0 74px;
  background-image:linear-gradient(100deg,rgba(11,13,11,.90) 8%,rgba(11,13,11,.55) 52%,rgba(11,13,11,.26) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:var(--paper);
}
.hero .wrap{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(216,255,62,.14);border:1px solid rgba(216,255,62,.4);
  color:var(--accent);font-size:12.5px;letter-spacing:.08em;font-weight:600;
  margin-bottom:22px;
}
.hero h1{
  color:#fff;
  font-size:clamp(34px,6.2vw,72px);
  font-weight:800;line-height:1.06;letter-spacing:-.02em;
  max-width:16em;margin-bottom:20px;
}
.hero h1 .hl{position:relative;white-space:nowrap}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:6px;background:var(--accent);border-radius:3px;z-index:-1;
}
.hero-sub{
  font-size:clamp(15.5px,1.6vw,19px);color:rgba(246,244,239,.86);
  max-width:34em;line-height:1.8;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.btn-main{
  position:relative;overflow:hidden;isolation:isolate;
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;border-radius:999px;border:1px solid var(--accent);
  background:var(--accent);color:var(--accent-ink);
  font-size:16px;font-weight:700;
  transition:color .3s ease,border-color .3s ease,transform .25s ease;
}
.btn-main span{position:relative;z-index:2}
.btn-main::after{
  content:"";position:absolute;left:0;top:0;height:100%;width:0;
  background:var(--ink);transition:width .35s cubic-bezier(.2,.7,.2,1);z-index:1;
}
.btn-main:hover{color:var(--accent);transform:translateY(-2px)}
.btn-main:hover::after{width:100%}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 28px;border-radius:999px;
  border:1px solid rgba(246,244,239,.42);color:var(--paper);
  font-size:16px;font-weight:600;background:transparent;
  transition:background .3s ease,border-color .3s ease,color .3s ease;
}
.btn-ghost:hover{background:rgba(246,244,239,.12);border-color:var(--paper);color:#fff}
.hero-trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13.5px;color:rgba(246,244,239,.78);letter-spacing:.02em;
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust i{color:var(--accent);font-size:12px}
.hero-trust .sep{width:1px;height:14px;background:rgba(246,244,239,.3);display:inline-block}
@media (max-width:767.98px){
  .hero{min-height:auto;padding:130px 0 56px}
  .hero-trust .sep{display:none}
}

/* ---------- 大字条 ---------- */
.ticker{
  background:var(--ink);color:var(--paper);
  padding:26px 0;overflow:hidden;border-top:1px solid rgba(246,244,239,.08);
}
.ticker-track{
  display:flex;gap:56px;white-space:nowrap;width:max-content;
  animation:tickerMove 26s linear infinite;
}
.ticker-track span{
  font-size:clamp(22px,3vw,38px);font-weight:800;letter-spacing:-.01em;
  color:rgba(246,244,239,.92);display:inline-flex;align-items:center;gap:56px;
}
.ticker-track span::after{content:"◆";color:var(--accent);font-size:14px}
@keyframes tickerMove{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 通用板块头 ---------- */
.sec-head{margin-bottom:44px}
.sec-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.14em;font-weight:700;color:var(--field);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-label::before{content:"";width:24px;height:4px;background:var(--accent);border-radius:2px}
.sec-head h2{font-size:clamp(26px,3.6vw,42px);line-height:1.18;font-weight:700;max-width:20em}
.sec-head p{margin-top:14px;color:var(--muted);max-width:52em;font-size:16px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding-bottom:20px;border-bottom:1px solid var(--line)}
.link-more{font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:8px;color:var(--field)}
.link-more i{transition:transform .25s ease}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 品牌理念双栏 ---------- */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,64px);align-items:center}
.story-copy h2{font-size:clamp(24px,3.2vw,38px);line-height:1.2;margin-bottom:22px}
.story-copy p{color:var(--ink-soft)}
.story-rule{width:72px;height:4px;background:var(--accent);border-radius:2px;margin:26px 0}
.story-figure{position:relative;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-2)}
.story-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.story-badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(11,13,11,.82);color:var(--paper);
  padding:12px 18px;border-radius:14px;backdrop-filter:blur(6px);
  font-size:13.5px;line-height:1.6;border:1px solid rgba(246,244,239,.16);max-width:78%;
}
.story-badge b{color:var(--accent);display:block;font-size:14.5px;margin-bottom:2px}
@media (max-width:991.98px){.story-grid{grid-template-columns:1fr}}

/* ---------- 精选卡片 ---------- */
.card-feature,.card-plain{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease;
  height:100%;
}
.card-feature:hover,.card-plain:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{overflow:hidden;background:var(--paper)}
.card-media img{width:100%;object-fit:cover;transition:transform .35s ease}
.card-feature .card-media img{aspect-ratio:16/10}
.card-plain .card-media img{aspect-ratio:16/10}
.card-feature:hover .card-media img,.card-plain:hover .card-media img{transform:scale(1.03)}
.card-body-in{padding:26px 26px 28px}
.card-plain .card-body-in{padding:20px 22px 24px}
.card-feature .card-body-in{padding:32px 32px 34px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:var(--field);color:#fff;font-size:12px;letter-spacing:.06em;font-weight:600;
}
.pill-outline{background:transparent;border:1px solid rgba(216,255,62,.8);color:var(--field)}
.card-feature h3{font-size:clamp(21px,2.3vw,28px);line-height:1.32;margin:16px 0 12px}
.card-plain h3{font-size:19px;line-height:1.42;margin:14px 0 10px}
.card-plain h3 a,.card-feature h3 a{color:var(--ink)}
.card-plain h3 a:hover,.card-feature h3 a:hover{color:var(--field)}
.card-text{color:var(--muted);font-size:14.6px;line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-feature .card-text{-webkit-line-clamp:3;font-size:15.4px}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:18px;font-size:12.8px;color:var(--muted);letter-spacing:.04em}
.card-meta i{font-size:11px}
.card-enter{display:inline-flex;align-items:center;gap:8px;margin-top:20px;font-size:14px;font-weight:700;color:var(--field)}
.card-enter i{transition:transform .25s ease}
.card-feature:hover .card-enter i,.card-plain:hover .card-enter i{transform:translateX(4px)}

.card-stack{display:grid;gap:24px}
@media (max-width:991.98px){.card-stack{margin-top:24px}}

/* ---------- 数据信任 ---------- */
.stats-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.stat-item{background:var(--paper);padding:clamp(28px,3.4vw,44px) 26px}
.stat-num{font-size:clamp(30px,4vw,48px);font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.02em}
.stat-num em{font-style:normal;font-size:.5em;color:var(--field);margin-left:4px}
.stat-item p{margin:12px 0 0;color:var(--muted);font-size:14.3px;line-height:1.75}
@media (max-width:767.98px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
.badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px}
.badge-item{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 18px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:var(--muted);font-size:13.5px;font-weight:600;
  filter:grayscale(1);transition:filter .3s ease,color .3s ease,border-color .3s ease;
}
.badge-item:hover{filter:grayscale(0);color:var(--ink);border-color:rgba(16,58,44,.28)}
.badge-item i{color:var(--field)}

/* ---------- 最新信息列表 ---------- */
.news-list{border-top:1px solid var(--line)}
.news-item{
  display:grid;grid-template-columns:120px 1fr auto;align-items:center;gap:26px;
  padding:24px 16px;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.news-item:hover{background:var(--paper)}
.news-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.03em}
.news-body{min-width:0}
.news-title{
  display:block;font-size:17.5px;font-weight:700;color:var(--ink);margin-bottom:6px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-sum{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  color:var(--muted);font-size:14.3px;line-height:1.75;
}
.news-meta{display:flex;align-items:center;gap:16px;white-space:nowrap}
.news-meta .tag{background:rgba(16,58,44,.08);color:var(--field);border-radius:999px;padding:5px 13px;font-size:12.2px;font-weight:600}
.news-meta .arrow{color:var(--field);transition:transform .25s ease}
.news-item:hover .news-meta .arrow{transform:translateX(4px)}
@media (max-width:767.98px){
  .news-item{grid-template-columns:1fr;gap:10px;padding:20px 6px}
  .news-meta{justify-content:flex-start}
  .news-title{white-space:normal}
}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--surface);padding:56px 26px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--field);margin-bottom:16px;display:block}
.empty-state p{color:var(--muted);margin:0 0 18px}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid var(--ink);
  color:var(--ink);font-weight:700;font-size:14.5px;background:transparent;
  transition:background .28s ease,color .28s ease;
}
.btn-line:hover{background:var(--ink);color:var(--paper)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-button{
  background:transparent;color:var(--ink);font-weight:600;font-size:17px;
  padding:22px 46px 22px 0;box-shadow:none;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--field);background:transparent}
.faq-acc .accordion-button::after{
  display:none;
}
.faq-acc .accordion-button .fi{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--field);transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-acc .accordion-button:not(.collapsed) .fi{transform:translateY(-50%) rotate(45deg);background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:var(--line)}
.faq-acc .accordion-body{background:var(--paper);border-radius:14px;padding:20px 24px;color:var(--ink-soft);font-size:15.4px;line-height:1.85}

/* ---------- CTA 深色 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--ink) 0%,var(--field) 100%);
  color:var(--paper);border-radius:26px;
  padding:clamp(34px,5vw,64px);
  display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(26px,4vw,56px);align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,38px);line-height:1.2;margin-bottom:14px}
.cta-band p{color:rgba(246,244,239,.76);margin:0;font-size:15.6px;max-width:32em}
.cta-form .form-control{
  border-radius:var(--radius-input);border:1px solid rgba(246,244,239,.24);
  background:rgba(255,255,255,.96);color:var(--ink);
  padding:14px 18px;font-size:15px;height:auto;
}
.cta-form .form-control::placeholder{color:#8C9187}
.cta-form .form-control:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(216,255,62,.28);background:#fff}
.cta-form .form-check-label{font-size:12.6px;color:rgba(246,244,239,.68);line-height:1.6}
.cta-form .form-check-input{border-radius:5px;margin-top:.32em}
.cta-form .form-check-input:checked{background-color:var(--accent);border-color:var(--accent)}
.cta-form .form-check-input:focus{box-shadow:0 0 0 3px rgba(216,255,62,.3);border-color:var(--accent)}
.form-note{margin-top:12px;font-size:12.6px;color:rgba(246,244,239,.62)}
@media (max-width:991.98px){.cta-band{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(246,244,239,.72);padding:clamp(56px,7vw,92px) 0 0;margin-top:var(--section-y)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:clamp(26px,3.4vw,52px)}
.site-footer h4{color:var(--paper);font-size:15px;letter-spacing:.06em;margin-bottom:20px;font-weight:700}
.site-footer a{color:rgba(246,244,239,.72);font-size:14.4px}
.site-footer a:hover{color:var(--accent)}
.footer-brand .brand-text{color:var(--paper)}
.footer-brand .brand-text em{color:var(--accent)}
.footer-brand p{margin:18px 0 0;font-size:14.2px;line-height:1.85;max-width:30em}
.footer-list li{margin-bottom:12px;display:flex;align-items:center;gap:8px}
.footer-list li i{font-size:11px;color:var(--accent)}
.footer-contact li{display:flex;gap:10px;margin-bottom:14px;font-size:14.2px;line-height:1.7}
.footer-contact li i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:clamp(38px,5vw,64px);border-top:1px solid rgba(246,244,239,.12);
  padding:24px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,244,239,.55);
}
.to-top{
  width:42px;height:42px;border-radius:50%;background:var(--accent);color:var(--accent-ink);
  display:inline-flex;align-items:center;justify-content:center;border:0;font-size:15px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.to-top:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(0,0,0,.3)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1)}
.fade-up.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .fade-up{opacity:1;transform:none}
  .ticker-track{animation:none}
}
@media (max-width:575.98px){
  body{font-size:16px}
  .btn-main,.btn-ghost,.nav-cta{width:100%;justify-content:center}
  .hero-actions{gap:12px}
}

/* roulang page: article */
:root{
  --ink:#0B0D0B;
  --ink-soft:#1C211D;
  --field:#103A2C;
  --field-light:#1A5340;
  --accent:#D8FF3E;
  --accent-ink:#0B0D0B;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:rgba(11,13,11,.10);
  --line-strong:rgba(11,13,11,.18);
  --muted:#6B7168;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,13,11,.04);
  --shadow-2:0 12px 32px rgba(11,13,11,.09);
  --ease:cubic-bezier(.2,.7,.2,1);
  --bs-primary:#103A2C;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1C211D;
  --bs-link-color:#103A2C;
  --bs-link-hover-color:#0B0D0B;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-soft);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--field);text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease)}
a:hover{color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.2em;padding-left:1.2em}
.wrap{max-width:1320px;margin:0 auto;padding-left:clamp(20px,5vw,72px);padding-right:clamp(20px,5vw,72px);width:100%}
.section{padding:clamp(56px,7vw,96px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:18px;
  left:0;
  right:0;
  z-index:1040;
  display:flex;
  justify-content:center;
  padding:0 clamp(14px,4vw,40px);
  transition:top .3s var(--ease);
}
.site-header.is-scrolled{top:10px}
.nav-shell{
  width:100%;
  max-width:1320px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 12px 10px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:rgba(246,244,239,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:background .3s var(--ease),padding .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  padding:6px 12px 6px 20px;
  background:rgba(246,244,239,.92);
  box-shadow:0 8px 26px rgba(11,13,11,.08);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;border-radius:9px;
  background:linear-gradient(135deg,var(--field),var(--ink));
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px 7px auto auto;
  width:9px;height:9px;border-radius:3px;background:var(--accent);
}
.brand-text{
  font-weight:800;font-size:17px;color:var(--ink);
  letter-spacing:-.02em;white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--field)}
.nav-links{
  display:flex;align-items:center;gap:4px;margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-soft);
  white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-links a:hover{background:rgba(11,13,11,.05);color:var(--ink)}
.nav-links a.active{color:var(--ink);background:rgba(216,255,62,.34)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 3px rgba(216,255,62,.25);
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;
  border-radius:var(--radius-pill);
  background:var(--accent);
  color:var(--accent-ink);
  font-size:14.5px;font-weight:700;
  border:1px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.nav-cta:hover{color:var(--accent-ink);background:#e4ff6e;transform:translateY(-1px);box-shadow:0 10px 22px rgba(216,255,62,.35)}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  color:var(--ink);font-size:16px;align-items:center;justify-content:center;
}
.offcanvas.ink-drawer{background:var(--ink);color:var(--paper)}
.ink-drawer .offcanvas-header{border-bottom:1px solid rgba(246,244,239,.14)}
.ink-drawer .drawer-title{font-weight:800;font-size:17px;color:var(--paper)}
.ink-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:56px;padding:0 22px;
  color:rgba(246,244,239,.86);
  font-size:16px;font-weight:600;
  border-left:3px solid transparent;
}
.drawer-nav a:hover{background:rgba(246,244,239,.06);color:#fff}
.drawer-nav a.active{border-left-color:var(--accent);color:var(--accent);background:rgba(216,255,62,.06)}
.drawer-foot{padding:18px 22px 26px;border-top:1px solid rgba(246,244,239,.14);font-size:13px;color:rgba(246,244,239,.6);line-height:1.8}

/* ---------- 文章页 ---------- */
.page-main{padding-top:132px}
.breadcrumb-nav{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);letter-spacing:.02em;margin-bottom:20px;
}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--ink)}
.breadcrumb-nav span.sep{opacity:.5}
.breadcrumb-nav .current{color:var(--ink);max-width:min(60vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{padding-bottom:26px;border-bottom:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.08em;
  background:var(--field);color:#F6F4EF;
}
.tag.tag-outline{background:transparent;color:var(--field);border:1px solid var(--field)}
.article-title{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;
  margin:18px 0 16px;
  max-width:960px;
}
.article-lead{
  max-width:860px;color:var(--muted);font-size:16.5px;
  margin:0 0 22px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13px;color:var(--muted);
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);display:inline-block}
.meta-row strong{color:var(--ink-soft);font-weight:600}

.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:clamp(28px,4vw,56px);
  align-items:start;
  padding-top:44px;
}
.article-shell{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:clamp(24px,3.4vw,52px);
}
.article-hero-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);margin-bottom:28px;
}
.article-body{max-width:760px}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;line-height:1.3;
  margin:2em 0 .7em;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:3px;background:var(--accent);
}
.article-body h3{font-size:20px;font-weight:600;margin:1.6em 0 .6em;color:var(--ink)}
.article-body p{margin:0 0 1.2em;color:var(--ink-soft);line-height:1.85}
.article-body ul,.article-body ol{padding-left:1.25em;margin:0 0 1.25em}
.article-body li{margin-bottom:.5em;line-height:1.85}
.article-body li::marker{color:var(--field)}
.article-body a{color:var(--field);border-bottom:1px solid rgba(16,58,44,.35)}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--accent)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  border-left:3px solid var(--field);
  background:var(--paper);
  border-radius:0 var(--radius-input) var(--radius-input) 0;
  color:var(--ink-soft);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--radius-img);
  margin:1.6em 0 .6em;
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-bottom:1.2em}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius-input);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--paper);color:var(--ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(246,244,239,.6)}
.article-body code{
  background:var(--paper);border:1px solid var(--line);
  padding:2px 7px;border-radius:8px;font-size:14px;color:var(--field);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

.empty-state{
  text-align:center;padding:64px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  background:var(--surface);
}
.empty-state i{font-size:34px;color:var(--field);opacity:.7}
.empty-state h2{font-size:22px;margin:18px 0 10px}
.empty-state p{color:var(--muted);margin:0 auto 22px;max-width:440px}

/* 目录侧栏 */
.toc-aside{position:sticky;top:132px;display:flex;flex-direction:column;gap:18px}
.toc-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 22px 18px;
  box-shadow:var(--shadow-1);
}
.toc-card h2{
  font-size:14px;font-weight:700;letter-spacing:.1em;
  color:var(--muted);text-transform:uppercase;margin-bottom:14px;
}
.toc-list{list-style:none;margin:0;padding:0;max-height:52vh;overflow:auto}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:8px 12px;font-size:14.5px;line-height:1.6;
  color:var(--muted);border-left:2px solid transparent;border-radius:0 10px 10px 0;
}
.toc-list a:hover{background:var(--paper);color:var(--ink)}
.toc-list a.is-active{
  color:var(--ink);font-weight:600;
  border-left-color:var(--accent);background:rgba(216,255,62,.16);
}
.toc-list a.lvl-3{padding-left:26px;font-size:13.5px}
.toc-hint{font-size:13px;color:var(--muted);margin:14px 0 0;line-height:1.7}
.side-card{
  background:linear-gradient(150deg,var(--field),var(--ink));
  color:rgba(246,244,239,.86);
  border-radius:var(--radius-card);padding:26px 24px;
}
.side-card h2{color:#fff;font-size:19px;margin-bottom:10px}
.side-card p{font-size:14px;line-height:1.8;margin-bottom:18px;color:rgba(246,244,239,.76)}
.side-card .btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(246,244,239,.4);color:#fff;font-size:14px;font-weight:600;
}
.side-card .btn-ghost:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}

/* 上/下一篇 */
.post-nav{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;margin-top:40px;
}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.post-nav .pn-label{font-size:12px;letter-spacing:.1em;color:var(--muted)}
.post-nav .pn-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5}
.post-nav .pn-arrow{color:var(--field);font-size:13px;transition:transform .3s var(--ease)}
.post-nav a:hover .pn-arrow{transform:translateX(4px)}

/* 相关推荐 */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;height:100%;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-item .thumb{overflow:hidden;aspect-ratio:16/10}
.card-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card-item:hover .thumb img{transform:scale(1.03)}
.card-item .card-body-inner{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-item h3{font-size:18px;font-weight:700;line-height:1.5}
.card-item p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:6px}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;position:relative;padding-left:20px}
.section-head h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:5px;border-radius:3px;background:var(--accent)}
.section-head .head-link{font-size:14px;font-weight:600;color:var(--field);white-space:nowrap}
.section-head .head-link:hover{color:var(--ink)}
.section-head .head-link i{margin-left:6px;transition:transform .3s var(--ease)}
.section-head .head-link:hover i{transform:translateX(4px)}

/* 返回按钮组 */
.back-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;padding-top:8px}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);color:var(--ink);
  font-size:15px;font-weight:600;background:transparent;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.btn-line:hover{background:var(--ink);border-color:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-solid{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-pill);
  background:var(--accent);color:var(--accent-ink);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn-solid:hover{color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 12px 26px rgba(216,255,62,.35)}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(246,244,239,.78);margin-top:clamp(56px,7vw,96px);padding:clamp(48px,6vw,80px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,48px)}
.footer-brand .brand-text{color:var(--paper);font-size:18px}
.footer-brand .brand-text em{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.9;margin-top:16px;color:rgba(246,244,239,.66);max-width:360px}
.site-footer h4{color:var(--paper);font-size:15px;font-weight:700;letter-spacing:.06em;margin-bottom:18px}
.footer-list,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.footer-list li,.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.75}
.footer-list li i,.footer-contact li i{color:var(--accent);font-size:12px;margin-top:6px;flex:0 0 auto}
.footer-list a{color:rgba(246,244,239,.78)}
.footer-list a:hover{color:var(--accent)}
.footer-contact span{color:rgba(246,244,239,.66)}
.footer-bottom{
  margin-top:clamp(34px,4vw,56px);padding-top:22px;
  border-top:1px solid rgba(246,244,239,.14);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:13px;color:rgba(246,244,239,.55);flex-wrap:wrap;
}
.to-top{
  width:44px;height:44px;border-radius:50%;
  background:var(--accent);color:var(--accent-ink);border:0;
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.to-top:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(216,255,62,.3)}

/* 入场动效 */
.fade-up{opacity:0;transform:translateY(16px)}
.fade-up.is-in{opacity:1;transform:none;transition:opacity .48s var(--ease),transform .48s var(--ease)}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .toc-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .toc-card,.side-card{flex:1 1 320px}
  .toc-list{max-height:none}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-shell{padding:8px 10px 8px 18px}
  .page-main{padding-top:112px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .toc-aside{flex-direction:column}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .page-main{padding-top:104px}
  .article-shell{padding:22px 18px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .nav-shell{max-width:100%}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px}
  .article-title{font-size:clamp(26px,7vw,34px)}
  .btn-line,.btn-solid{width:100%;justify-content:center}
}

/* roulang page: category1 */
:root{
  --ink:#0B0D0B;
  --ink-soft:#1C211D;
  --field:#103A2C;
  --accent:#D8FF3E;
  --accent-ink:#0B0D0B;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:rgba(11,13,11,.10);
  --muted:#6B7168;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(11,13,11,.04);
  --shadow-2:0 12px 32px rgba(11,13,11,.09);
  --gap-section:clamp(64px,9vw,128px);
  --gap-section-sm:clamp(40px,6vw,64px);

  --bs-body-bg:var(--paper);
  --bs-body-color:var(--ink-soft);
  --bs-primary:var(--field);
  --bs-link-color:var(--field);
  --bs-link-hover-color:var(--ink);
  --bs-border-color:var(--line);
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-soft);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--field);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease;}
a:hover{color:var(--ink);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding-left:clamp(20px,5vw,72px);
  padding-right:clamp(20px,5vw,72px);
}
.section{padding-top:var(--gap-section);padding-bottom:var(--gap-section);}
.section-sm{padding-top:var(--gap-section-sm);padding-bottom:var(--gap-section-sm);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:1040;
  padding:0 clamp(12px,3.5vw,36px);
  transition:top .3s ease;
}
.nav-shell{
  max-width:1320px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:10px 12px 10px 22px;
  border-radius:999px;
  background:rgba(246,244,239,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:0 6px 24px rgba(11,13,11,.07);
  transition:padding .3s ease,background-color .3s ease,box-shadow .3s ease;
}
.site-header.is-shrink .nav-shell{
  padding:6px 10px 6px 18px;
  background:rgba(246,244,239,.92);
  box-shadow:0 8px 28px rgba(11,13,11,.10);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:800;
  font-size:17px;
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:26px;height:26px;
  border-radius:9px;
  background:var(--ink);
  position:relative;
  flex:0 0 auto;
  overflow:hidden;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:6px;top:6px;
  width:14px;height:14px;
  border-radius:5px;
  background:var(--accent);
}
.brand-text em{
  font-style:normal;
  color:var(--field);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 15px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-soft);
  white-space:nowrap;
}
.nav-links a:hover{background:rgba(11,13,11,.055);color:var(--ink);}
.nav-links a.active{
  color:var(--ink);
  font-weight:700;
  background:rgba(11,13,11,.05);
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:3px;
  width:6px;height:6px;
  margin-left:-3px;
  border-radius:50%;
  background:var(--accent);
}
.nav-right{display:flex;align-items:center;gap:8px;}
.btn-accent{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  border-radius:999px;
  background:var(--accent);
  color:var(--accent-ink);
  font-weight:700;
  font-size:14.5px;
  border:1px solid var(--accent);
  position:relative;
  overflow:hidden;
  isolation:isolate;
  transition:color .3s ease,border-color .3s ease,transform .3s ease;
}
.btn-accent span{position:relative;z-index:2;}
.btn-accent::after{
  content:"";
  position:absolute;
  inset:0;
  width:0;
  background:var(--ink);
  z-index:1;
  transition:width .35s cubic-bezier(.2,.7,.2,1);
}
.btn-accent:hover{color:var(--paper);border-color:var(--ink);transform:translateY(-1px);}
.btn-accent:hover::after{width:100%;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  font-size:16px;
  align-items:center;
  justify-content:center;
}
.offcanvas.mobile-drawer{
  background:var(--ink);
  color:var(--paper);
  width:min(340px,86vw);
  border:0;
}
.mobile-drawer .offcanvas-header{
  padding:22px 22px 12px;
  border-bottom:1px solid rgba(246,244,239,.12);
}
.mobile-drawer .brand{color:var(--paper);}
.mobile-drawer .brand-text em{color:var(--accent);}
.mobile-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.mobile-drawer .offcanvas-body{padding:10px 0 26px;}
.drawer-list a{
  display:flex;
  align-items:center;
  min-height:56px;
  padding:0 22px;
  color:rgba(246,244,239,.86);
  font-size:16px;
  border-left:3px solid transparent;
}
.drawer-list a:hover{background:rgba(246,244,239,.06);color:#fff;}
.drawer-list a.active{
  border-left-color:var(--accent);
  color:#fff;
  font-weight:700;
  background:rgba(246,244,239,.06);
}
.drawer-cta{padding:18px 22px 0;}

/* ---------- 面包屑 ---------- */
.crumb{
  font-size:13px;
  color:var(--muted);
  letter-spacing:.04em;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--ink);font-weight:600;}

/* ---------- Hero ---------- */
.hero{
  padding-top:clamp(130px,17vh,190px);
  padding-bottom:clamp(48px,7vw,88px);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(28px,5vw,64px);
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:7px 16px;
  border-radius:999px;
  background:var(--field);
  color:#fff;
  font-size:12.5px;
  letter-spacing:.08em;
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(34px,6.2vw,68px);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-0.02em;
  margin-bottom:22px;
}
.hero h1 .hl{
  position:relative;
  display:inline-block;
}
.hero h1 .hl::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:.06em;
  height:5px;
  border-radius:3px;
  background:var(--accent);
  z-index:-1;
}
.hero-lead{
  font-size:clamp(16px,1.6vw,18px);
  color:var(--ink-soft);
  max-width:52ch;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.btn-ink{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:13px 26px;
  border-radius:999px;
  background:var(--ink);
  color:var(--paper);
  font-weight:700;
  font-size:15px;
  border:1px solid var(--ink);
  position:relative;
  overflow:hidden;
  isolation:isolate;
  transition:color .3s ease,transform .3s ease;
}
.btn-ink span{position:relative;z-index:2;}
.btn-ink::after{
  content:"";
  position:absolute;inset:0;width:0;
  background:var(--accent);
  z-index:1;
  transition:width .35s cubic-bezier(.2,.7,.2,1);
}
.btn-ink:hover{color:var(--accent-ink);transform:translateY(-2px);}
.btn-ink:hover::after{width:100%;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:12px 24px;
  border-radius:999px;
  background:transparent;
  color:var(--ink);
  font-weight:600;
  font-size:15px;
  border:1px solid rgba(11,13,11,.24);
  transition:border-color .25s ease,background-color .25s ease,transform .25s ease;
}
.btn-ghost:hover{border-color:var(--ink);background:rgba(11,13,11,.04);color:var(--ink);transform:translateY(-2px);}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 14px;
  font-size:13.5px;
  color:var(--muted);
}
.trust-row .bar{width:1px;height:14px;background:var(--line);}
.hero-figure{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  aspect-ratio:16/11;
  background:var(--field);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;
  left:16px;bottom:16px;
  right:16px;
  font-size:12.5px;
  color:rgba(246,244,239,.9);
  background:rgba(11,13,11,.55);
  border:1px solid rgba(246,244,239,.16);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-radius:12px;
  padding:9px 14px;
}

/* ---------- 通用板块标题 ---------- */
.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,52px);}
.sec-head h2{
  font-size:clamp(26px,3.6vw,42px);
  font-weight:700;
  line-height:1.18;
  position:relative;
  padding-left:20px;
  margin-bottom:14px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:6px;
  border-radius:3px;
  background:var(--accent);
}
.sec-head p{color:var(--muted);margin:0;font-size:16px;}
.sec-head.invert h2,.sec-head.invert p{color:var(--paper);}

/* ---------- 错落图文卡 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:clamp(20px,3vw,32px);
}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:clamp(22px,3vw,34px);
  box-shadow:var(--shadow-1);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(11,13,11,.16);}
.info-card.wide{grid-column:1 / -1;}
.info-card .icon{
  width:46px;height:46px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--field);
  color:var(--accent);
  font-size:18px;
}
.info-card h3{font-size:21px;font-weight:700;}
.info-card p{margin:0;color:var(--ink-soft);font-size:15.5px;}
.info-card .cover{
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--paper);
}
.info-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.2,1);}
.info-card:hover .cover img{transform:scale(1.03);}
.wide-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(20px,3vw,36px);
  align-items:center;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;
  padding:5px 13px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.05em;
  background:var(--field);
  color:#fff;
}
.tag.outline{background:transparent;color:var(--field);border:1px solid rgba(16,58,44,.35);}

/* ---------- 步骤流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:clamp(16px,2.4vw,26px);
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px 24px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step .num{
  font-variant-numeric:tabular-nums;
  font-size:34px;
  font-weight:800;
  line-height:1;
  color:var(--field);
  margin-bottom:14px;
  display:block;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{margin:0;font-size:14.5px;color:var(--muted);}

/* ---------- 列表条目 ---------- */
.issue-list{border-top:1px solid var(--line);}
.issue{
  display:grid;
  grid-template-columns:76px 1fr auto;
  gap:20px;
  align-items:center;
  padding:24px 18px;
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease;
}
.issue:hover{background:rgba(216,255,62,.12);}
.issue .idx{
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:800;
  color:var(--accent);
  -webkit-text-stroke:1px rgba(11,13,11,.28);
  line-height:1;
}
.issue h3{font-size:18px;margin-bottom:6px;}
.issue p{margin:0;font-size:14.8px;color:var(--muted);}
.issue .go{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--muted);
}
.issue .go i{transition:transform .25s ease;}
.issue:hover .go i{transform:translateX(4px);color:var(--ink);}

/* ---------- 数据带 ---------- */
.stats{
  background:var(--field);
  border-radius:26px;
  padding:clamp(30px,4.6vw,58px) clamp(24px,4vw,56px);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:clamp(22px,3vw,40px);
  color:var(--paper);
}
.stat .n{
  font-variant-numeric:tabular-nums;
  font-size:clamp(30px,4vw,46px);
  font-weight:800;
  color:var(--accent);
  line-height:1.05;
  display:block;
  margin-bottom:8px;
}
.stat .t{font-size:14.5px;color:rgba(246,244,239,.78);}

/* ---------- 深色 CTA ---------- */
.cta-block{
  background:linear-gradient(120deg,var(--ink) 0%,var(--field) 100%);
  border-radius:28px;
  padding:clamp(32px,5vw,64px);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(26px,4vw,54px);
  align-items:center;
  color:var(--paper);
}
.cta-block h2{color:var(--paper);font-size:clamp(24px,3.2vw,36px);margin-bottom:14px;}
.cta-block p{color:rgba(246,244,239,.78);margin:0;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.cta-field{display:flex;gap:10px;flex-wrap:wrap;}
.cta-field input{
  flex:1 1 200px;
  min-width:0;
  border-radius:var(--radius-input);
  border:1px solid rgba(246,244,239,.22);
  background:var(--surface);
  color:var(--ink);
  padding:13px 16px;
  font-size:15px;
  line-height:1.4;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.cta-field input::placeholder{color:var(--muted);}
.cta-field input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(216,255,62,.35);
}
.cta-note{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:12.8px;
  color:rgba(246,244,239,.62);
}
.cta-note input{accent-color:var(--accent);margin-top:4px;}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq .accordion-button{
  background:transparent;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:22px 4px;
  box-shadow:none;
  border-radius:0;
  gap:16px;
}
.faq .accordion-button:not(.collapsed){
  color:var(--field);
  background:transparent;
  box-shadow:none;
}
.faq .accordion-button:focus{outline:2px solid var(--accent);outline-offset:-2px;box-shadow:none;}
.faq .accordion-button::after{
  content:"+";
  background-image:none !important;
  width:26px;height:26px;
  font-size:20px;
  line-height:1;
  color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  transform:none;
  transition:transform .3s ease,color .3s ease;
  flex:0 0 auto;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--field);}
.faq .accordion-body{
  padding:4px 4px 24px;
  background:transparent;
  color:var(--ink-soft);
  font-size:15.5px;
  line-height:1.85;
  max-width:74ch;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(246,244,239,.78);
  padding:clamp(52px,7vw,92px) 0 30px;
  margin-top:clamp(56px,8vw,110px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr 1.2fr;
  gap:clamp(24px,3.6vw,48px);
  padding-bottom:40px;
  border-bottom:1px solid rgba(246,244,239,.14);
}
.footer-brand .brand{color:var(--paper);margin-bottom:16px;}
.footer-brand .brand-text em{color:var(--accent);}
.footer-brand p{font-size:14.5px;color:rgba(246,244,239,.66);margin:0;}
.site-footer h4{
  color:var(--paper);
  font-size:15.5px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-list li,.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  margin-bottom:11px;
  font-size:14.2px;
  color:rgba(246,244,239,.72);
}
.footer-list i,.footer-contact i{color:var(--accent);font-size:11px;margin-top:7px;}
.footer-list a{color:rgba(246,244,239,.72);}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding-top:24px;
  font-size:13.2px;
  color:rgba(246,244,239,.55);
}
.to-top{
  width:44px;height:44px;
  border-radius:50%;
  border:0;
  background:var(--accent);
  color:var(--accent-ink);
  font-size:15px;
  flex:0 0 auto;
  transition:transform .25s ease,box-shadow .25s ease;
}
.to-top:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(216,255,62,.28);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);}
.reveal.in{
  opacity:1;
  transform:translateY(0);
  transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1);
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .reveal.in{transition:none;}
  .info-card:hover,.step:hover,.btn-ink:hover,.btn-accent:hover,.btn-ghost:hover,.to-top:hover{transform:none;}
  .info-card:hover .cover img{transform:none;}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links a{padding:9px 12px;font-size:14px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-shell{padding:8px 10px 8px 18px;}
  .nav-right .btn-accent{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{aspect-ratio:16/10;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .cta-block{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .wide-inner{grid-template-columns:1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .issue{grid-template-columns:1fr;gap:10px;padding:22px 4px;}
  .issue .go{justify-content:flex-start;}
  .hero{padding-top:clamp(118px,20vh,160px);}
  .trust-row{font-size:13px;}
}
@media (max-width:575px){
  .steps{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-ink,.hero-actions .btn-ghost{justify-content:center;}
  .cta-field{flex-direction:column;}
  .cta-field .btn-accent{justify-content:center;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --ink:#0B0D0B;
  --ink-soft:#1C211D;
  --field:#103A2C;
  --accent:#D8FF3E;
  --accent-ink:#0B0D0B;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:rgba(11,13,11,.10);
  --muted:#6B7168;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(11,13,11,.04);
  --shadow-2:0 12px 32px rgba(11,13,11,.09);
  --container:1320px;
  --gutter:clamp(20px,5vw,72px);
  --section:clamp(56px,7vw,104px);

  --bs-primary:#103A2C;
  --bs-primary-rgb:16,58,44;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1C211D;
  --bs-link-color:#103A2C;
  --bs-link-hover-color:#0B0D0B;
  --bs-link-color-rgb:16,58,44;
  --bs-border-color:rgba(11,13,11,.10);
  --bs-border-radius:18px;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-font-size:17px;
  --bs-body-line-height:1.85;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:120px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--field);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease;}
a:hover{color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
h1{font-size:clamp(34px,5.4vw,66px);font-weight:800;line-height:1.06;letter-spacing:-.02em;}
h2{font-size:clamp(26px,3.6vw,42px);font-weight:700;line-height:1.18;letter-spacing:-.02em;margin-bottom:14px;}
h3{font-size:clamp(18px,1.7vw,22px);font-weight:600;line-height:1.4;margin-bottom:10px;}
h4{font-size:15px;font-weight:700;line-height:1.5;letter-spacing:.02em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}

a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:8px;
}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);}
.section{padding:var(--section) 0;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  padding:18px 0;
  transition:padding .3s ease;
}
.site-header.is-scrolled{padding:9px 0;}
.nav-shell{
  display:flex;align-items:center;gap:16px;
  padding:9px 12px 9px 20px;
  border-radius:var(--r-pill);
  background:rgba(246,244,239,.74);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 1px 2px rgba(11,13,11,.04);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(246,244,239,.93);
  box-shadow:0 8px 26px rgba(11,13,11,.08);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:-.01em;}
.brand:hover{color:var(--ink);}
.brand-mark{position:relative;width:26px;height:26px;border-radius:8px;background:var(--field);flex:none;}
.brand-mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:11px;height:11px;border-radius:4px;background:var(--accent);}
.brand-text em{font-style:normal;color:var(--field);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;
  padding:10px 14px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-soft);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:16px;height:2px;border-radius:2px;background:var(--accent);
  transform:translateX(-50%) scaleX(0);
  transition:transform .25s ease;
}
.nav-links a:hover{color:var(--ink);background:rgba(11,13,11,.045);}
.nav-links a.active{color:var(--ink);}
.nav-links a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-cta{
  flex:none;
  padding:11px 20px;
  border-radius:var(--r-pill);
  font-size:14px;font-weight:700;
  color:var(--paper);
  background-color:var(--ink);
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;
  background-size:0% 100%;
  background-position:left center;
  transition:background-size .35s cubic-bezier(.2,.7,.2,1),color .3s ease;
}
.nav-cta:hover{color:var(--accent-ink);background-size:100% 100%;}
.nav-toggle{
  display:none;flex:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--surface);
  color:var(--ink);
  font-size:16px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);}

/* ---------- Drawer ---------- */
.nav-drawer{background:var(--ink);color:var(--paper);width:min(88vw,360px);border:0;}
.nav-drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid rgba(246,244,239,.10);}
.nav-drawer .brand-text{color:#fff;}
.nav-drawer .brand-text em{color:var(--accent);}
.nav-drawer .brand-mark{background:var(--accent);}
.nav-drawer .brand-mark::after{background:var(--field);}
.nav-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.72;}
.nav-drawer .btn-close:hover{opacity:1;}
.nav-drawer .offcanvas-body{padding:22px;display:flex;flex-direction:column;}
.drawer-nav{display:grid;margin:0 0 26px;}
.drawer-nav a{
  position:relative;
  display:flex;align-items:center;
  min-height:56px;
  padding:12px 6px;
  font-size:16px;font-weight:600;
  color:rgba(246,244,239,.82);
  border-bottom:1px solid rgba(246,244,239,.10);
}
.drawer-nav a:hover{color:#fff;padding-left:12px;}
.drawer-nav a.active{color:#fff;}
.drawer-nav a.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--accent);
}
.drawer-cta{margin-top:auto;text-align:center;justify-content:center;}

/* ---------- Buttons ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 28px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:700;
  transition:transform .3s ease,box-shadow .3s ease,background-size .35s cubic-bezier(.2,.7,.2,1),color .3s ease,border-color .3s ease;
}
.btn-main{
  background-color:var(--accent);
  color:var(--accent-ink);
  border:1px solid var(--accent);
  background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;
  background-size:0% 100%;
  background-position:left center;
}
.btn-main:hover{color:var(--paper);background-size:100% 100%;transform:translateY(-2px);box-shadow:0 12px 30px rgba(11,13,11,.18);}
.btn-ghost{
  background:transparent;
  color:var(--paper);
  border:1px solid rgba(246,244,239,.34);
}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:clamp(128px,14vw,188px) 0 clamp(56px,7vw,88px);
  background:var(--ink);
  color:var(--paper);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.46;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,13,11,.94),rgba(16,58,44,.62) 58%,rgba(11,13,11,.44));
}
.page-hero .wrap{position:relative;z-index:2;}
.breadcrumb-line{
  display:flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.06em;
  color:rgba(246,244,239,.62);
  margin-bottom:26px;
}
.breadcrumb-line a{color:rgba(246,244,239,.72);}
.breadcrumb-line a:hover{color:var(--accent);}
.breadcrumb-line span{color:rgba(246,244,239,.42);}
.breadcrumb-line .current{color:#fff;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(32px,5vw,64px);
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--accent);
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:24px;height:4px;border-radius:2px;background:var(--accent);}
.page-hero h1{color:#fff;margin-bottom:18px;}
.hl{
  background-image:linear-gradient(transparent 62%,rgba(216,255,62,.82) 62%,rgba(216,255,62,.82) 90%,transparent 90%);
  padding:0 2px;
}
.hero-lead{
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.8;
  color:rgba(246,244,239,.84);
  max-width:34em;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;gap:0 0;font-size:13.5px;color:rgba(246,244,239,.72);}
.hero-points li{display:flex;align-items:center;}
.hero-points li + li::before{content:"";width:1px;height:13px;background:rgba(246,244,239,.28);margin:0 16px;}
.hero-media{margin:0;}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid rgba(246,244,239,.16);
  box-shadow:0 24px 60px rgba(0,0,0,.42);
}

/* ---------- Section head ---------- */
.section-head{max-width:760px;margin-bottom:clamp(30px,4vw,52px);}
.section-head p{color:var(--muted);font-size:16px;}
.section-head .tagline{
  display:inline-block;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;
  color:var(--field);
  margin-bottom:14px;
  padding-left:34px;
  position:relative;
}
.section-head .tagline::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:24px;height:4px;border-radius:2px;background:var(--accent);
}

/* ---------- Layout: side + list ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,300px) minmax(0,1fr);
  gap:clamp(28px,4vw,56px);
  align-items:start;
}
.side{position:sticky;top:112px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:18px;}
.side-title{
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--muted);
  margin-bottom:14px;
}
.side-nav{display:grid;gap:2px;}
.side-nav a{
  position:relative;
  display:block;
  padding:10px 12px;
  border-radius:10px;
  font-size:15px;font-weight:600;
  color:var(--ink-soft);
}
.side-nav a:hover{background:var(--paper);color:var(--ink);}
.side-nav a::after{
  content:"›";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  color:var(--muted);font-size:15px;transition:transform .25s ease,color .25s ease;
}
.side-nav a:hover::after{transform:translate(4px,-50%);color:var(--field);}
.side-note h3{font-size:17px;margin-bottom:8px;}
.side-note p{font-size:14.5px;line-height:1.8;color:var(--muted);}
.mini-cta{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;
  padding-bottom:3px;
  font-size:14.5px;font-weight:700;
  color:var(--field);
  border-bottom:2px solid var(--accent);
}
.mini-cta:hover{color:var(--ink);}
.mini-cta i{transition:transform .25s ease;}
.mini-cta:hover i{transform:translateX(4px);}

/* ---------- Feature list ---------- */
.feature-list{border-top:1px solid var(--line);}
.feature-row{
  display:grid;
  grid-template-columns:78px minmax(0,1fr) auto;
  gap:24px;
  align-items:start;
  padding:26px 18px;
  border-bottom:1px solid var(--line);
  border-radius:16px;
  transition:background-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.feature-row:hover{
  background:var(--surface);
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
}
.feature-index{
  font-size:32px;
  font-weight:800;
  letter-spacing:-.03em;
  line-height:1.1;
  color:var(--field);
  font-variant-numeric:tabular-nums;
}
.feature-body h3{margin-bottom:8px;}
.feature-body p{
  font-size:15.5px;
  line-height:1.8;
  color:var(--muted);
  margin:0;
}
.feature-meta{
  display:flex;align-items:center;gap:14px;
  padding-top:6px;
}
.feature-meta i{
  color:var(--muted);
  font-size:14px;
  transition:transform .25s ease,color .25s ease;
}
.feature-row:hover .feature-meta i{transform:translateX(4px);color:var(--field);}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:var(--field);
  color:#fff;
  white-space:nowrap;
}
.tag-line{
  background:transparent;
  border:1px solid var(--accent);
  color:var(--field);
}

/* ---------- Stats band ---------- */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  padding:clamp(28px,4vw,44px);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow-1);
}
.stat + .stat{border-left:1px solid var(--line);padding-left:24px;}
.stat-num{
  font-size:clamp(30px,3.4vw,44px);
  font-weight:800;
  line-height:1;
  letter-spacing:-.03em;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.stat-num em{font-style:normal;font-size:.55em;font-weight:700;color:var(--field);margin-left:4px;}
.stat-label{font-size:14.5px;color:var(--muted);line-height:1.7;}

/* ---------- Steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.step{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.step:hover{transform:translateY(-4px);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(--field);
  color:var(--accent);
  font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-acc{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;}
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:22px 56px 22px 0;
  border-radius:0;
  box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){
  background:transparent;
  color:var(--ink);
  box-shadow:none;
}
.faq-acc .accordion-button::after{
  content:"+";
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%);
  width:30px;height:30px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--paper);
  background-image:none;
  color:var(--field);
  font-size:18px;font-weight:700;line-height:1;
  transition:transform .3s ease,background-color .3s ease,color .3s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  background-color:var(--accent);
  color:var(--accent-ink);
}
.faq-acc .accordion-body{
  padding:0 0 24px;
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-soft);
}

/* ---------- CTA block ---------- */
.cta-block{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(28px,4vw,54px);
  align-items:center;
  padding:clamp(32px,5vw,58px);
  border-radius:28px;
  background:linear-gradient(118deg,var(--ink),var(--field));
  color:var(--paper);
}
.cta-block h2{color:#fff;margin-bottom:12px;}
.cta-block p{color:rgba(246,244,239,.78);font-size:16px;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;}
.cta-form input{
  flex:1 1 220px;
  min-width:0;
  padding:14px 18px;
  border-radius:var(--r-input);
  border:1px solid transparent;
  background:#fff;
  color:var(--ink);
  font-size:15px;
}
.cta-form input::placeholder{color:#9AA096;}
.cta-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(216,255,62,.24);}
.cta-form .btn-main{flex:none;}
.form-note{margin-top:14px;font-size:12.5px;line-height:1.7;color:rgba(246,244,239,.62);}
.form-alert{
  display:none;
  margin-top:14px;
  padding:12px 16px;
  border-radius:12px;
  background:rgba(216,255,62,.16);
  border:1px solid rgba(216,255,62,.5);
  color:#F6F4EF;
  font-size:14px;
}
.form-alert.show{display:block;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:var(--section);
  background:var(--ink);
  color:var(--paper);
  padding:clamp(48px,7vw,84px) 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:clamp(28px,4vw,48px);
}
.site-footer h4{color:#fff;margin-bottom:18px;font-size:15px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-text em{color:var(--accent);}
.site-footer .brand-mark{background:var(--accent);}
.site-footer .brand-mark::after{background:var(--field);}
.footer-brand p{
  margin-top:18px;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(246,244,239,.72);
  max-width:34em;
}
.footer-list{display:grid;gap:12px;}
.footer-list li{display:flex;align-items:flex-start;gap:10px;}
.footer-list i{color:var(--accent);font-size:11px;line-height:1.9;flex:none;}
.footer-list a{font-size:14.5px;color:rgba(246,244,239,.78);}
.footer-list a:hover{color:var(--accent);}
.footer-contact{display:grid;gap:14px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.75;color:rgba(246,244,239,.72);}
.footer-contact i{color:var(--accent);font-size:13px;line-height:1.75;flex:none;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid rgba(246,244,239,.14);
  font-size:13px;
  color:rgba(246,244,239,.58);
  line-height:1.75;
}
.to-top{
  flex:none;
  width:44px;height:44px;
  border:0;
  border-radius:50%;
  background:var(--accent);
  color:var(--accent-ink);
  display:grid;place-items:center;
  font-size:15px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.to-top:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(216,255,62,.28);}

/* ---------- Motion ---------- */
.fade-up{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1);
}
.fade-up.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,262px) minmax(0,1fr);}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-shell{padding:8px 10px 8px 16px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/9;}
  .layout{grid-template-columns:1fr;}
  .side{position:static;}
  .side-card + .side-card{margin-top:16px;}
  .steps{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .cta-block{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .page-hero{padding-top:118px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .feature-row{grid-template-columns:1fr;gap:12px;padding:22px 4px;}
  .feature-index{font-size:24px;}
  .feature-meta{justify-content:flex-start;padding-top:0;}
  .stats-band{grid-template-columns:1fr;}
  .stat + .stat{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .hero-points{flex-direction:column;align-items:flex-start;gap:8px;}
  .hero-points li + li::before{display:none;}
  .cta-form{flex-direction:column;}
  .cta-form input,.cta-form .btn-main{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-acc .accordion-button{font-size:16px;padding-right:48px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#0B0D0B;
  --ink-soft:#1C211D;
  --field:#103A2C;
  --accent:#D8FF3E;
  --accent-ink:#0B0D0B;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:rgba(11,13,11,.10);
  --muted:#6B7168;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,13,11,.04);
  --shadow-2:0 12px 32px rgba(11,13,11,.09);
  --wrap:1320px;
  --pad:clamp(20px,5vw,72px);
  --sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1C211D;
  --bs-primary:#103A2C;
  --bs-primary-rgb:16,58,44;
  --bs-link-color:#103A2C;
  --bs-link-hover-color:#0B0D0B;
  --bs-border-color:rgba(11,13,11,.10);
  --bs-border-radius:12px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-soft);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-top:0;
}
img{max-width:100%;display:block}
a{color:var(--field);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--ink)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.section{padding:clamp(64px,9vw,128px) 0}
.section.tight{padding:clamp(48px,6vw,72px) 0}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,52px)}
.section-head h2{font-size:clamp(26px,3.6vw,42px);font-weight:700;line-height:1.18;position:relative;padding-left:20px}
.section-head h2::before{content:"";position:absolute;left:0;top:.22em;width:8px;height:.86em;background:var(--accent);border-radius:3px}
.section-head p{margin-top:16px;color:var(--muted);font-size:16.5px}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1045;padding:14px var(--pad) 0;transition:padding .3s ease}
.nav-shell{
  max-width:var(--wrap);margin:0 auto;
  display:flex;align-items:center;gap:16px;
  background:rgba(246,244,239,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:10px 12px 10px 22px;
  box-shadow:var(--shadow-1);
  transition:padding .3s ease, background-color .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled{padding-top:8px}
.site-header.is-scrolled .nav-shell{padding-top:6px;padding-bottom:6px;background:rgba(246,244,239,.92);box-shadow:var(--shadow-2)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:22px;height:22px;border-radius:8px;background:var(--field);position:relative;flex:0 0 22px}
.brand-mark::after{content:"";position:absolute;right:3px;bottom:3px;width:9px;height:9px;border-radius:50%;background:var(--accent)}
.brand-text em{font-style:normal;color:var(--field)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{position:relative;display:inline-block;padding:10px 15px 14px;border-radius:var(--radius-pill);font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap;transition:background-color .25s ease,color .25s ease}
.nav-links a:hover{background:rgba(11,13,11,.05)}
.nav-links a.active{font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:50%;bottom:6px;transform:translateX(-50%);width:6px;height:6px;border-radius:50%;background:var(--accent)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  background:var(--accent);color:var(--accent-ink);
  border:1px solid transparent;border-radius:var(--radius-pill);
  padding:11px 22px;font-size:15px;font-weight:700;
  position:relative;overflow:hidden;isolation:isolate;
  transition:color .3s ease;
}
.nav-cta::after{content:"";position:absolute;inset:0;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,.7,.2,1);z-index:-1}
.nav-cta:hover{color:var(--accent)}
.nav-cta:hover::after{transform:scaleX(1)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--ink);color:var(--paper)}
.drawer-brand{padding:20px 22px;border-bottom:1px solid rgba(246,244,239,.12);color:var(--paper);font-weight:800}
.offcanvas.mk-drawer{background:var(--ink);color:var(--paper);width:min(86vw,360px);border:0}
.mk-drawer .offcanvas-header{border-bottom:1px solid rgba(246,244,239,.12);padding:18px 22px}
.mk-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.8}
.mk-drawer .drawer-link{display:flex;align-items:center;height:56px;padding:0 22px;color:var(--paper);font-size:16px;border-left:3px solid transparent;transition:background-color .25s ease,color .25s ease,border-color .25s ease}
.mk-drawer .drawer-link.active{border-left-color:var(--accent);background:rgba(246,244,239,.06);color:var(--accent)}
.mk-drawer .drawer-link:hover{background:rgba(246,244,239,.06)}

/* ============ Banner ============ */
.page-banner{position:relative;overflow:hidden;border-radius:0 0 0 0;padding:clamp(140px,18vh,200px) 0 clamp(56px,8vw,88px);color:var(--paper)}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02)}
.banner-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,13,11,.90),rgba(11,13,11,.62) 55%,rgba(11,13,11,.34))}
.banner-inner{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.04em;color:rgba(246,244,239,.72);margin-bottom:22px}
.crumbs a{color:rgba(246,244,239,.72)}
.crumbs a:hover{color:var(--accent)}
.crumbs .current{color:var(--paper)}
.page-banner h1{
  color:#fff;font-size:clamp(32px,5.4vw,62px);font-weight:800;line-height:1.1;letter-spacing:-.02em;
  max-width:16em;
}
.page-banner h1 .hl{position:relative;white-space:nowrap}
.page-banner h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:6px;background:var(--accent);border-radius:3px;opacity:.9;z-index:-1}
.banner-lead{margin-top:24px;max-width:640px;font-size:clamp(16px,1.6vw,18.5px);line-height:1.8;color:rgba(246,244,239,.86)}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-pill);font-size:13px;letter-spacing:.06em;border:1px solid rgba(246,244,239,.28);color:var(--paper);background:rgba(246,244,239,.06)}
.tag-pill i{color:var(--accent);font-size:12px}
.tag-pill.solid{background:var(--field);border-color:var(--field);color:#fff}

/* ============ 信息条 ============ */
.info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.info-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;display:flex;gap:16px;align-items:flex-start;
  box-shadow:var(--shadow-1);transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease;
}
.info-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.info-icon{flex:0 0 44px;width:44px;height:44px;border-radius:14px;background:var(--field);color:var(--accent);display:grid;place-items:center;font-size:17px}
.info-item h3{font-size:18px;font-weight:600;margin-bottom:6px}
.info-item p{font-size:15.5px;color:var(--muted);line-height:1.75;margin:0}

/* ============ Z 字图文 ============ */
.zigzag{display:grid;gap:clamp(36px,6vw,72px)}
.zigzag-row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4vw,64px);align-items:center}
.zigzag-row.reverse .zz-media{order:2}
.zz-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1)}
.zz-body .zz-index{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:16px;margin-bottom:18px}
.zz-body h3{font-size:clamp(21px,2.4vw,27px);font-weight:700;line-height:1.3;margin-bottom:16px}
.zz-body p{color:var(--ink-soft);font-size:16.5px}
.zz-list{margin-top:18px;display:grid;gap:12px}
.zz-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink-soft)}
.zz-list li i{color:var(--field);margin-top:.5em;font-size:12px}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(16,58,44,.28)}
.step-num{
  display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;margin-bottom:18px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step p{font-size:15.5px;color:var(--muted);line-height:1.75;margin:0}

/* ============ 数据带 ============ */
.data-band{background:var(--ink);border-radius:24px;padding:clamp(34px,4.5vw,56px);color:var(--paper)}
.data-band .band-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:34px}
.data-band h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:700}
.data-band .band-head p{color:rgba(246,244,239,.68);max-width:520px;font-size:15.5px;margin:0}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.data-item{border-top:1px solid rgba(246,244,239,.18);padding-top:20px}
.data-num{font-size:clamp(32px,4vw,46px);font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em}
.data-item span{display:block;margin-top:8px;font-size:14.5px;color:rgba(246,244,239,.72);line-height:1.7}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,64px);align-items:start}
.faq-intro h2{font-size:clamp(26px,3.4vw,38px);font-weight:700;line-height:1.2;padding-left:20px;position:relative}
.faq-intro h2::before{content:"";position:absolute;left:0;top:.22em;width:8px;height:.86em;background:var(--accent);border-radius:3px}
.faq-intro p{margin-top:18px;color:var(--muted);font-size:16px}
.faq-note{margin-top:26px;padding:20px 22px;border-radius:14px;background:rgba(16,58,44,.06);border-left:3px solid var(--field);font-size:15.5px;color:var(--ink-soft)}
.mk-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0}
.mk-accordion .accordion-item:first-child{border-top:1px solid var(--line)}
.mk-accordion .accordion-header{margin:0;font-size:inherit}
.mk-accordion .accordion-button{
  background:transparent;border:0;border-radius:0;box-shadow:none;
  padding:22px 48px 22px 0;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  font-family:inherit;transition:color .25s ease;
}
.mk-accordion .accordion-button:not(.collapsed){background:transparent;color:var(--field);box-shadow:none}
.mk-accordion .accordion-button:focus{box-shadow:none;outline:3px solid var(--accent);outline-offset:2px}
.mk-accordion .accordion-button::after{display:none}
.mk-accordion .accordion-button::before{
  content:"";position:absolute;right:8px;top:50%;width:16px;height:16px;transform:translateY(-50%);
  background:
    linear-gradient(var(--ink),var(--ink)) center/16px 2px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/2px 16px no-repeat;
  transition:transform .3s ease;
}
.mk-accordion .accordion-button:not(.collapsed)::before{transform:translateY(-50%) rotate(45deg);background:
    linear-gradient(var(--field),var(--field)) center/16px 2px no-repeat,
    linear-gradient(var(--field),var(--field)) center/2px 16px no-repeat;}
.mk-accordion .accordion-body{
  background:var(--paper);border-radius:12px;padding:20px 22px;margin-bottom:20px;
  font-size:16px;line-height:1.85;color:var(--ink-soft);
}

/* ============ CTA + 表单 ============ */
.cta-block{
  background:linear-gradient(120deg,#0B0D0B 0%,#103A2C 100%);
  border-radius:24px;padding:clamp(32px,5vw,62px);color:var(--paper);
  display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(28px,4vw,56px);align-items:center;
}
.cta-block h2{color:#fff;font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.2}
.cta-block .cta-sub{margin-top:16px;color:rgba(246,244,239,.76);font-size:16.5px;max-width:520px}
.cta-points{margin-top:24px;display:grid;gap:10px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:rgba(246,244,239,.84)}
.cta-points li i{color:var(--accent);margin-top:.5em;font-size:12px}
.mk-form{background:rgba(246,244,239,.06);border:1px solid rgba(246,244,239,.16);border-radius:20px;padding:26px 24px}
.mk-form label{display:block;font-size:14px;color:rgba(246,244,239,.78);margin-bottom:8px}
.mk-input{
  width:100%;background:#fff;color:var(--ink);border:1px solid transparent;
  border-radius:var(--radius-input);padding:14px 16px;font-size:15.5px;line-height:1.5;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.mk-input::placeholder{color:#9AA096}
.mk-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(216,255,62,.32)}
.form-row{display:grid;gap:16px}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:rgba(246,244,239,.72);line-height:1.7;margin-top:4px}
.check-line input{margin-top:.35em;accent-color:var(--accent);width:16px;height:16px;flex:0 0 16px}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--accent);color:var(--accent-ink);border:1px solid transparent;
  border-radius:var(--radius-pill);padding:14px 28px;font-size:16px;font-weight:700;
  cursor:pointer;position:relative;overflow:hidden;isolation:isolate;width:100%;
  transition:color .3s ease;
}
.btn-accent::after{content:"";position:absolute;inset:0;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,.7,.2,1);z-index:-1}
.btn-accent:hover{color:var(--accent)}
.btn-accent:hover::after{transform:scaleX(1)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  border-radius:var(--radius-pill);padding:13px 26px;font-size:15.5px;font-weight:600;cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease;
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.form-msg{margin-top:14px;font-size:14px;border-radius:12px;padding:12px 14px;display:none}
.form-msg.ok{display:block;background:rgba(216,255,62,.14);color:#E8FFA8;border:1px solid rgba(216,255,62,.35)}
.form-msg.err{display:block;background:rgba(255,120,120,.12);color:#FFD2D2;border:1px solid rgba(255,120,120,.32)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--paper);margin-top:clamp(64px,9vw,120px);padding:clamp(48px,6vw,80px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:clamp(26px,3.5vw,52px)}
.site-footer .brand{color:var(--paper);font-size:19px}
.site-footer .brand-mark{background:var(--accent)}
.site-footer .brand-mark::after{background:var(--field)}
.site-footer .brand-text em{color:var(--accent)}
.footer-brand p{margin-top:18px;color:rgba(246,244,239,.68);font-size:15px;line-height:1.85;max-width:36ch}
.site-footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-list li{display:flex;gap:10px;align-items:center;padding:7px 0;font-size:15px}
.footer-list i{color:var(--accent);font-size:12px}
.footer-list a{color:rgba(246,244,239,.74)}
.footer-list a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:12px;align-items:flex-start;padding:7px 0;font-size:14.5px;color:rgba(246,244,239,.74);line-height:1.75}
.footer-contact i{color:var(--accent);margin-top:.45em;font-size:14px}
.footer-bottom{
  margin-top:clamp(32px,4vw,56px);padding-top:24px;border-top:1px solid rgba(246,244,239,.14);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(246,244,239,.6);
}
.to-top{
  width:46px;height:46px;border-radius:50%;border:0;background:var(--accent);color:var(--accent-ink);
  display:grid;place-items:center;cursor:pointer;font-size:16px;
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease;
}
.to-top:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(216,255,62,.28)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .faq-wrap{grid-template-columns:1fr}
  .cta-block{grid-template-columns:1fr}
  .zigzag-row{grid-template-columns:1fr}
  .zigzag-row.reverse .zz-media{order:0}
  .info-strip{grid-template-columns:1fr}
  body{font-size:16.5px}
}
@media (max-width:767.98px){
  .steps{grid-template-columns:1fr}
  .data-grid{grid-template-columns:1fr;gap:22px}
  .footer-grid{grid-template-columns:1fr}
  .page-banner{padding-top:clamp(120px,20vh,160px)}
  .banner-lead{font-size:16px}
  .nav-shell{padding:8px 10px 8px 16px}
}
@media (max-width:575.98px){
  .brand{font-size:16.5px}
  .brand-text em{display:none}
  .mk-form{padding:22px 18px}
  .data-band{border-radius:18px}
  .cta-block{border-radius:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}