/* roulang page: index */
:root{
  --bg:#f4f7f8;
  --surface:#ffffff;
  --surface-2:#eef3f4;
  --surface-3:#e4eaec;
  --ink:#101d22;
  --ink-2:#3f5057;
  --ink-3:#78898f;
  --line:#e0e7e9;
  --line-2:#cfd9dc;
  --primary:#0e6f70;
  --primary-d:#0a5455;
  --primary-l:#e4f2f1;
  --accent:#b8792f;
  --accent-l:#fbf1e4;
  --ok:#2f8f6b;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(16,29,34,.04), 0 8px 22px rgba(16,29,34,.06);
  --sh-2:0 16px 42px rgba(16,29,34,.11);
  --sh-in:inset 0 1px 0 rgba(255,255,255,.6);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-d)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.32;color:var(--ink)}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(14,111,112,.35);outline-offset:2px;border-radius:8px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-bar{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:14px;
  min-height:74px;
}
.nav-left{display:flex;gap:4px;justify-content:flex-start}
.nav-right{display:flex;gap:4px;justify-content:flex-end}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;
  font-size:.94rem;font-weight:600;
  color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{background:var(--surface-2);color:var(--ink)}
.nav-link.is-active{background:var(--primary-l);color:var(--primary-d)}
.nav-link.is-active:hover{background:#d6ecea;color:var(--primary-d)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.06rem;color:var(--ink);
  letter-spacing:.02em;white-space:nowrap;
}
.brand:hover{color:var(--primary-d)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,#12797a,#0a5455);
  color:#eafaf8;font-size:1rem;font-weight:800;
  box-shadow:0 6px 16px rgba(14,111,112,.28);
}
.nav-toggle{
  display:none;position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle:hover{border-color:var(--line-2);background:var(--surface-2)}
.mobile-nav{
  display:none;border-top:1px solid var(--line);
  background:#fff;padding:10px 22px 18px;
}
.mobile-nav.is-open{display:block;animation:slideDown .22s ease}
@keyframes slideDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.mobile-nav a{
  display:block;padding:12px 14px;margin-bottom:4px;
  border-radius:12px;font-weight:600;color:var(--ink-2);
}
.mobile-nav a:hover{background:var(--surface-2);color:var(--ink)}
.mobile-nav a.is-active{background:var(--primary-l);color:var(--primary-d)}

/* ---------- generic ---------- */
.section{padding:58px 0}
.section--tight{padding:44px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-l);color:var(--primary-d);
  font-size:.78rem;font-weight:700;letter-spacing:.06em;
  margin-bottom:16px;
}
.eyebrow i{font-size:.8rem}
.section-head{max-width:780px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.32rem,2.3vw,1.78rem);margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:1rem;line-height:1.85}
.lead{font-size:1.06rem;line-height:1.88;color:var(--ink-2)}

.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.card--flat:hover{transform:none;box-shadow:var(--sh-1)}
.card h3{font-size:1.06rem;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:.94rem;line-height:1.8;margin:0}
.card-icon{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:var(--primary-l);color:var(--primary-d);font-size:1.05rem;margin-bottom:16px;
}
.card-icon--accent{background:var(--accent-l);color:#8d5a1c}

.g{display:grid;gap:20px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--primary-l);color:var(--primary-d);
  font-size:.76rem;font-weight:700;letter-spacing:.02em;
}
.pill--accent{background:var(--accent-l);color:#8d5a1c}
.pill--muted{background:var(--surface-2);color:var(--ink-3)}
.pill--dark{background:rgba(255,255,255,.14);color:#d8efed}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:.95rem;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:.86em}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(14,111,112,.26)}
.btn-primary:hover{background:var(--primary-d);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,111,112,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(14,111,112,.24)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-d);transform:translateY(-2px)}
.btn-soft{background:var(--surface-2);color:var(--ink-2)}
.btn-soft:hover{background:var(--surface-3);color:var(--ink)}
.btn-light{background:#fff;color:var(--primary-d)}
.btn-light:hover{background:#eafaf8;color:var(--primary-d);transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.text-link{font-weight:700;font-size:.92rem;display:inline-flex;align-items:center;gap:6px}
.text-link i{font-size:.76em;transition:transform .2s ease}
.text-link:hover i{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{padding:64px 0 48px}
.hero-stack{
  display:grid;
  grid-template-columns:1.42fr .78fr;
  gap:22px;
  align-items:start;
}
.hero-main{padding:38px}
.hero-main h1{font-size:clamp(1.72rem,3.3vw,2.42rem);margin-bottom:14px}
.hero-sub{
  font-size:1.08rem;font-weight:700;color:var(--primary-d);
  margin:0 0 16px;line-height:1.7;
}
.hero-lead{font-size:1rem;line-height:1.92;color:var(--ink-2);margin-bottom:26px}
.hero-actions{margin-bottom:28px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:26px;
  padding-top:22px;border-top:1px dashed var(--line-2);
}
.hero-stat b{display:block;font-size:1.36rem;font-weight:800;color:var(--primary-d);font-variant-numeric:tabular-nums;line-height:1.3}
.hero-stat span{font-size:.82rem;color:var(--ink-3);letter-spacing:.02em}
.hero-side{display:grid;gap:22px}
.side-card{padding:24px}
.side-card h3{font-size:.96rem;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--primary);font-size:.86rem}
.meter{margin-bottom:16px}
.meter:last-child{margin-bottom:0}
.meter-top{display:flex;justify-content:space-between;font-size:.85rem;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.meter-top em{font-style:normal;color:var(--ink-3);font-weight:500;font-size:.8rem}
.bar{height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.bar > i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#0e6f70,#54b6ae);transition:width .6s ease}
.bar--accent > i{background:linear-gradient(90deg,#b8792f,#e0a458)}
.hot-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:.92rem;color:var(--ink-2);
}
.hot-list li:last-child{border-bottom:none;padding-bottom:0}
.hot-list li .rank{
  width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  background:var(--surface-2);color:var(--ink-3);font-size:.72rem;font-weight:800;flex:none;
}
.hot-list li .rank.is-top{background:var(--primary-l);color:var(--primary-d)}
.hot-list li span.name{flex:1}

/* ---------- misc blocks ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}
.check-list li{
  display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);
  color:var(--ink-2);font-size:.95rem;line-height:1.8;
}
.check-list li:last-child{border-bottom:none}
.check-list i{color:var(--ok);margin-top:6px;flex:none;font-size:.9rem}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
}
.panel-title{font-size:.82rem;font-weight:800;letter-spacing:.1em;color:var(--ink-3);margin-bottom:16px;text-transform:uppercase}
.quote-line{
  font-size:1rem;line-height:1.9;color:var(--ink);font-weight:600;
  padding-left:16px;border-left:3px solid var(--primary-l);
}
.quote-line + .quote-line{margin-top:18px}

.force-card{display:flex;flex-direction:column;gap:14px;padding:26px}
.force-card h3{font-size:1.05rem;display:flex;align-items:center;justify-content:space-between;gap:10px}
.force-card .sample{
  background:var(--surface-2);border-radius:var(--r-md);
  padding:14px 16px;font-size:.93rem;color:var(--ink);line-height:1.75;
  border-left:3px solid var(--primary);
}
.force-card--mid .sample{border-left-color:#54b6ae}
.force-card--high .sample{border-left-color:var(--accent)}

.kpi{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.kpi-num{font-size:clamp(1.6rem,3vw,2.05rem);font-weight:800;color:var(--primary-d);font-variant-numeric:tabular-nums;line-height:1.2;display:flex;align-items:baseline;gap:4px}
.kpi-num small{font-size:.95rem;font-weight:700;color:var(--primary)}
.kpi-label{font-size:.92rem;font-weight:700;color:var(--ink);margin:6px 0 4px}
.kpi-desc{font-size:.84rem;color:var(--ink-3);line-height:1.7}

.timeline{border-top:1px solid var(--line)}
.step{
  display:grid;grid-template-columns:66px 1fr;gap:22px;
  padding:26px 0;border-bottom:1px dashed var(--line);
}
.step:last-child{border-bottom:none}
.step-no{
  width:52px;height:52px;border-radius:16px;
  display:grid;place-items:center;
  background:var(--primary-l);color:var(--primary-d);
  font-weight:800;font-size:1.06rem;
}
.step-body h3{font-size:1.04rem;margin-bottom:8px}
.step-body p{color:var(--ink-2);font-size:.94rem;line-height:1.82;margin:0}

.scene-list{border-top:1px solid var(--line)}
.scene-row{
  display:grid;grid-template-columns:190px 1fr;
  gap:24px;padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.scene-row:hover{background:#fff;padding-left:14px}
.scene-row:last-child{border-bottom:none}
.scene-row h3{font-size:1rem;display:flex;align-items:center;gap:9px}
.scene-row h3 i{color:var(--primary);font-size:.9rem}
.scene-row p{margin:0;color:var(--ink-2);font-size:.93rem;line-height:1.82}

.entry-card{display:flex;flex-direction:column;gap:12px;padding:28px;position:relative;overflow:hidden}
.entry-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;
  border-radius:50%;background:var(--surface-2);opacity:.7;
}
.entry-card .pill{align-self:flex-start;position:relative;z-index:1}
.entry-card h3{font-size:1.12rem;position:relative;z-index:1}
.entry-card p{position:relative;z-index:1}
.entry-card .text-link{position:relative;z-index:1;margin-top:4px}

.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
table.tbl{width:100%;border-collapse:collapse;font-size:.93rem;min-width:640px}
table.tbl th,table.tbl td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.tbl th{background:var(--surface-2);font-size:.82rem;letter-spacing:.06em;color:var(--ink-3);font-weight:800;white-space:nowrap}
table.tbl td{color:var(--ink-2);line-height:1.75}
table.tbl td strong{color:var(--ink);font-weight:700}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr{transition:background-color .18s ease}
table.tbl tbody tr:hover{background:#fafcfc}

.party{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:34px;box-shadow:var(--sh-1);
}
.party-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:start}
.progress-box{
  background:var(--surface-2);border-radius:var(--r-md);padding:18px 20px;margin-bottom:20px;
}
.progress-box .meter-top{font-size:.88rem}
.progress-box .meter-top strong{color:var(--primary-d);font-size:1.05rem}
.join-list li{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:10px;background:#fff;transition:border-color .2s ease,transform .2s ease;
}
.join-list li:hover{border-color:var(--primary);transform:translateX(3px)}
.join-list li .join-av{
  width:36px;height:36px;border-radius:12px;flex:none;display:grid;place-items:center;
  background:var(--primary-l);color:var(--primary-d);font-weight:800;font-size:.9rem;
}
.join-list li .join-txt{flex:1;min-width:0}
.join-list li .join-txt b{display:block;font-size:.93rem;color:var(--ink);font-weight:700}
.join-list li .join-txt span{font-size:.8rem;color:var(--ink-3)}

.voice{display:flex;flex-direction:column;gap:14px;padding:24px}
.voice-head{display:flex;align-items:center;gap:12px}
.voice-av{
  width:42px;height:42px;border-radius:14px;flex:none;display:grid;place-items:center;
  background:var(--surface-2);color:var(--ink-2);font-weight:800;
}
.voice-av--a{background:var(--primary-l);color:var(--primary-d)}
.voice-av--b{background:var(--accent-l);color:#8d5a1c}
.voice-head b{display:block;font-size:.94rem}
.voice-head span{font-size:.78rem;color:var(--ink-3)}
.voice p{font-size:.93rem;color:var(--ink-2);line-height:1.82}

.news-list{border-top:1px solid var(--line)}
.news-item{
  display:grid;grid-template-columns:130px 1fr auto;gap:20px;align-items:center;
  padding:22px 6px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.news-item:hover{background:#fff;padding-left:16px}
.news-item:last-child{border-bottom:none}
.news-date{font-size:.84rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-title{font-size:1rem;font-weight:700;color:var(--ink);margin-bottom:5px}
.news-desc{font-size:.88rem;color:var(--ink-3);line-height:1.7}
.news-arrow{color:var(--ink-3);font-size:.85rem}

.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  padding:9px 17px;border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--ink-2);font-size:.89rem;font-weight:600;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,background-color .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary-d);background:var(--primary-l);transform:translateY(-2px)}

.pick{display:flex;flex-direction:column;gap:14px;padding:26px}
.pick .pick-meta{display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--ink-3)}
.pick h3{font-size:1.04rem}
.pick p{font-size:.92rem}
.pick .pick-foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line)}

.cta-band{
  background:#0c2f31;
  background-image:radial-gradient(900px 380px at 88% -10%,rgba(84,182,174,.28),transparent 62%);
  color:#e8f7f5;
  border-radius:var(--r-xl);
  padding:48px;
  display:grid;grid-template-columns:1.35fr .85fr;gap:36px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(1.36rem,2.4vw,1.86rem);margin-bottom:14px}
.cta-band p{color:#b6d6d3;font-size:.98rem;line-height:1.88;margin-bottom:0}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-actions .note{font-size:.82rem;color:#8fb8b5}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer-brand .brand{margin-bottom:16px;font-size:1.12rem}
.footer-brand p{font-size:.9rem;color:var(--ink-3);line-height:1.85;max-width:360px}
.footer-tech{margin-top:14px;font-size:.82rem;color:var(--ink-3);letter-spacing:.02em}
.footer-col h4{font-size:.82rem;letter-spacing:.1em;color:var(--ink-3);text-transform:uppercase;margin-bottom:16px}
.footer-col a{display:block;padding:7px 0;font-size:.92rem;color:var(--ink-2);font-weight:600}
.footer-col a:hover{color:var(--primary-d);padding-left:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:.83rem;color:var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-stack{grid-template-columns:1fr}
  .hero-side{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .split{grid-template-columns:1fr;gap:26px}
  .party-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:38px}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .nav-bar{display:flex;justify-content:center;min-height:64px}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:flex;right:0}
  .brand{font-size:1rem}
  .section{padding:44px 0}
  .hero{padding:44px 0 34px}
  .hero-main{padding:28px}
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  .wrap{padding:0 16px}
  .hero-side{grid-template-columns:1fr}
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .g{gap:16px}
  .card,.panel,.kpi,.party{padding:22px}
  .hero-main h1{font-size:1.62rem}
  .hero-sub{font-size:1rem}
  .scene-row{grid-template-columns:1fr;gap:10px;padding:18px 2px}
  .scene-row:hover{padding-left:2px}
  .step{grid-template-columns:52px 1fr;gap:16px}
  .step-no{width:44px;height:44px;border-radius:13px;font-size:.96rem}
  .news-item{grid-template-columns:1fr;gap:8px}
  .news-arrow{display:none}
  .cta-band{padding:28px;border-radius:22px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .hero-stats{gap:20px}
}
@media (max-width:420px){
  .brand-text{font-size:.95rem}
  .btn{padding:12px 20px;font-size:.9rem}
}

/* roulang page: category2 */
:root{
 --bg:#f4f7f8;
 --surface:#ffffff;
 --surface-2:#eef3f4;
 --surface-3:#e4eaec;
 --ink:#101d22;
 --ink-2:#3f5057;
 --ink-3:#78898f;
 --line:#e0e7e9;
 --line-2:#cfd9dc;
 --primary:#0e6f70;
 --primary-d:#0a5455;
 --primary-l:#e4f2f1;
 --accent:#b8792f;
 --accent-l:#fbf1e4;
 --ok:#2f8f6b;
 --r-sm:8px;
 --r-md:14px;
 --r-lg:20px;
 --r-xl:28px;
 --sh-1:0 1px 2px rgba(16,29,34,.04), 0 8px 22px rgba(16,29,34,.06);
 --sh-2:0 16px 42px rgba(16,29,34,.11);
 --sh-in:inset 0 1px 0 rgba(255,255,255,.6);
}
/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease}
a:hover{color:var(--primary-d)}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.32;font-weight:800;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(14,111,112,.42);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
/* ============ header / nav ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.nav-bar{
 position:relative;
 display:grid;
 grid-template-columns:1fr auto 1fr;
 align-items:center;
 gap:14px;
 min-height:74px;
}
.nav-left{display:flex;gap:4px;justify-content:flex-start}
.nav-right{display:flex;gap:4px;justify-content:flex-end}
.nav-link{
 display:inline-flex;align-items:center;
 padding:9px 16px;border-radius:999px;
 font-size:.94rem;font-weight:600;
 color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{background:var(--surface-2);color:var(--ink)}
.nav-link.is-active{background:var(--primary-l);color:var(--primary-d)}
.nav-link.is-active:hover{background:#d6ecea;color:var(--primary-d)}
.brand{
 display:inline-flex;align-items:center;gap:10px;
 font-weight:800;font-size:1.06rem;color:var(--ink);
 letter-spacing:.02em;white-space:nowrap;
}
.brand:hover{color:var(--primary-d)}
.brand-mark{
 width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(150deg,#12797a,#0a5455);
 color:#eafaf8;font-size:1rem;font-weight:800;
 box-shadow:0 6px 16px rgba(14,111,112,.28);
}
.nav-toggle{
 display:none;position:absolute;right:0;top:50%;transform:translateY(-50%);
 width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
 background:#fff;padding:0;
 flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle:hover{border-color:var(--line-2);background:var(--surface-2)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{
 display:none;border-top:1px solid var(--line);
 background:#fff;padding:10px 22px 18px;
}
.mobile-nav.is-open{display:block;animation:slideDown .22s ease}
@keyframes slideDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.mobile-nav a{
 display:block;padding:12px 14px;margin-bottom:4px;
 border-radius:12px;font-weight:600;color:var(--ink-2);
}
.mobile-nav a:hover{background:var(--surface-2);color:var(--ink)}
.mobile-nav a.is-active{background:var(--primary-l);color:var(--primary-d)}
/* ============ generic blocks ============ */
.section{padding:58px 0}
.section--tight{padding:44px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:var(--primary-l);color:var(--primary-d);
 font-size:.78rem;font-weight:700;letter-spacing:.06em;
 margin-bottom:16px;
}
.eyebrow i{font-size:.8rem}
.section-head{max-width:780px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.32rem,2.3vw,1.78rem);margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:1rem;line-height:1.85;margin:0}
.lead{font-size:1.06rem;line-height:1.88;color:var(--ink-2)}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--r-lg);
 padding:26px;
 box-shadow:var(--sh-1);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.card h3{font-size:1.06rem;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:.94rem;line-height:1.8;margin:0}
.card-icon{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 background:var(--primary-l);color:var(--primary-d);font-size:1.05rem;margin-bottom:16px;
}
.card-icon--accent{background:var(--accent-l);color:#8d5a1c}
.pill{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;
 background:var(--primary-l);color:var(--primary-d);
 font-size:.76rem;font-weight:700;letter-spacing:.02em;
}
.pill--accent{background:var(--accent-l);color:#8d5a1c}
.pill--muted{background:var(--surface-2);color:var(--ink-3)}
.pill--dark{background:rgba(255,255,255,.14);color:#d8efed}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-size:.95rem;font-weight:700;letter-spacing:.01em;
 transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:.86em}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(14,111,112,.26)}
.btn-primary:hover{background:var(--primary-d);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,111,112,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(14,111,112,.24)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-d);transform:translateY(-2px)}
.btn-soft{background:var(--surface-2);color:var(--ink-2)}
.btn-soft:hover{background:var(--surface-3);color:var(--ink)}
.btn-light{background:#fff;color:var(--primary-d)}
.btn-light:hover{background:#eafaf8;color:var(--primary-d);transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.text-link{font-weight:700;font-size:.92rem;display:inline-flex;align-items:center;gap:6px}
.text-link i{font-size:.76em;transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
/* ============ page hero ============ */
.page-hero{
 position:relative;overflow:hidden;
 padding:56px 0 48px;
 background:linear-gradient(180deg,#ffffff 0%,#eef5f5 100%);
 border-bottom:1px solid var(--line);
}
.page-hero::before{
 content:"";position:absolute;inset:0;pointer-events:none;
 background-image:linear-gradient(to right,rgba(14,111,112,.05) 1px,transparent 1px),
                  linear-gradient(to bottom,rgba(14,111,112,.05) 1px,transparent 1px);
 background-size:66px 66px;
}
.page-hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:38px;align-items:start}
.hero-title{font-size:clamp(1.7rem,3.2vw,2.42rem);line-height:1.3;margin-bottom:16px}
.hero-lead{font-size:1.02rem;line-height:1.9;color:var(--ink-2);margin-bottom:26px;max-width:640px}
.tone-panel{
 background:linear-gradient(165deg,#103134,#0b2325);
 border-radius:var(--r-xl);padding:26px 26px 20px;color:#d9eeec;
 box-shadow:var(--sh-2);
}
.tone-panel h3{color:#fff;font-size:1.02rem;margin-bottom:6px}
.tone-panel .panel-sub{font-size:.82rem;color:#8fbfbc;margin:0 0 14px}
.tone-list li{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.15);font-size:.9rem;
}
.tone-list li:last-child{border-bottom:0}
.tone-list li b{color:#fff;font-weight:700}
.tone-list li span{color:#9fd6d2;font-weight:600;font-size:.86rem;white-space:nowrap}
.kpi-row{
 display:grid;grid-template-columns:repeat(4,1fr);
 margin-top:38px;background:#fff;border:1px solid var(--line);
 border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
}
.kpi{padding:20px 22px;border-right:1px solid var(--line)}
.kpi:last-child{border-right:0}
.kpi .num{display:block;font-size:1.55rem;font-weight:800;color:var(--primary-d);line-height:1.25;letter-spacing:-.02em}
.kpi .num small{font-size:.62em;font-weight:700;margin-left:2px}
.kpi .lbl{display:block;font-size:.82rem;color:var(--ink-3);font-weight:600;margin-top:2px}
/* ============ level scale ============ */
.level-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.level-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:20px;box-shadow:var(--sh-1);
 display:flex;flex-direction:column;gap:10px;
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.level-card .lv{font-size:.76rem;font-weight:800;letter-spacing:.1em;color:var(--primary-d)}
.level-card h3{font-size:1rem;margin:0}
.level-card p{font-size:.88rem;line-height:1.72;color:var(--ink-2);margin:0}
.level-card .bar{height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden;margin-top:2px}
.level-card .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#12797a,#b8792f)}
.level-card .meta{font-size:.78rem;color:var(--ink-3);font-weight:600}
/* ============ parameter cards ============ */
.param-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:border-color .25s ease,box-shadow .25s ease}
.param-card:hover{border-color:var(--line-2);box-shadow:var(--sh-2)}
.param-card h3{font-size:1.02rem;display:flex;align-items:center;gap:10px;margin-bottom:10px}
.param-card h3 i{color:var(--primary);font-size:.95rem}
.param-card p{font-size:.92rem;color:var(--ink-2);line-height:1.78;margin:0 0 16px}
.meter{height:7px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.meter i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#0e6f70,#4cb0aa)}
.meter--accent i{background:linear-gradient(90deg,#b8792f,#dfae72)}
.meter-foot{display:flex;justify-content:space-between;font-size:.78rem;color:var(--ink-3);font-weight:600;margin-top:8px}
/* ============ data table ============ */
.table-wrap{
 overflow-x:auto;background:#fff;border:1px solid var(--line);
 border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
table.data{width:100%;border-collapse:collapse;min-width:680px;font-size:.92rem}
table.data th{
 background:var(--surface-2);text-align:left;padding:14px 18px;
 font-size:.82rem;letter-spacing:.05em;color:var(--ink-2);font-weight:700;
 border-bottom:1px solid var(--line);white-space:nowrap;
}
table.data td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;line-height:1.72}
table.data tbody tr:last-child td{border-bottom:0}
table.data tbody tr:hover td{background:#f8fbfb}
table.data td strong{color:var(--ink)}
/* ============ dialect cards ============ */
.dialect-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease}
.dialect-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.dialect-card .region{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.dialect-card .region h3{margin:0;font-size:1rem}
.dialect-card blockquote{
 margin:0 0 12px;padding:12px 16px;border-left:3px solid var(--primary);
 background:var(--primary-l);border-radius:0 var(--r-sm) var(--r-sm) 0;
 font-size:.92rem;color:var(--primary-d);font-weight:600;
}
.dialect-card p{font-size:.9rem;color:var(--ink-2);margin:0;line-height:1.78}
/* ============ list rows ============ */
.list-rows{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 overflow:hidden;box-shadow:var(--sh-1);
}
.list-row{
 display:flex;gap:18px;align-items:flex-start;
 padding:20px 24px;border-bottom:1px solid var(--line);
 transition:background-color .2s ease;
}
.list-row:last-child{border-bottom:0}
.list-row:hover{background:#f8fbfb}
.list-row .idx{
 flex:0 0 auto;width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:var(--primary-l);color:var(--primary-d);
 font-weight:800;font-size:.86rem;
}
.list-row .body h3{font-size:.99rem;margin-bottom:6px}
.list-row .body p{font-size:.9rem;color:var(--ink-2);margin:0;line-height:1.76}
.list-row .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
/* ============ timeline ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{
 content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--primary),#cfe3e2);
}
.timeline li{position:relative;padding-bottom:24px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
 content:"";position:absolute;left:-28px;top:8px;
 width:11px;height:11px;border-radius:50%;
 background:#fff;border:2px solid var(--primary);
}
.timeline .t-date{font-size:.76rem;font-weight:800;color:var(--primary-d);letter-spacing:.08em}
.timeline .t-title{font-weight:700;font-size:1rem;margin:2px 0 4px}
.timeline p{font-size:.9rem;color:var(--ink-2);margin:0;line-height:1.76}
/* ============ topic entries ============ */
.topic-card{
 display:flex;flex-direction:column;gap:12px;
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:26px;box-shadow:var(--sh-1);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.topic-card h3{font-size:1.06rem;margin:0}
.topic-card p{font-size:.92rem;color:var(--ink-2);margin:0;line-height:1.78;flex:1}
/* ============ cta ============ */
.cta-band{
 background:linear-gradient(150deg,#103436,#0a2223);
 border-radius:var(--r-xl);padding:44px;color:#dceeed;
 display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;
 box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(1.28rem,2.2vw,1.68rem);margin-bottom:12px}
.cta-band p{color:#a9d4d1;font-size:.96rem;line-height:1.85;margin:0}
.field{display:flex;gap:10px;flex-wrap:wrap}
.field input{
 flex:1 1 210px;min-width:0;
 padding:13px 18px;border-radius:999px;
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.08);color:#fff;font-size:.94rem;
 transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder{color:#8fbfbc}
.field input:focus{outline:none;border-color:#5fc3bd;box-shadow:0 0 0 4px rgba(95,195,189,.18);background:rgba(255,255,255,.12)}
.form-note{font-size:.8rem;color:#8fbfbc;margin:12px 0 0}
/* ============ footer ============ */
.site-footer{background:#0d2224;color:#a9bfc0;padding:56px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
.footer-brand .brand{color:#eef7f6;margin-bottom:16px}
.footer-brand .brand:hover{color:#fff}
.footer-brand p{font-size:.9rem;line-height:1.85;color:#8fa9aa;margin:0 0 14px;max-width:420px}
.footer-brand .footer-tech{font-size:.82rem;color:#6f8b8c;margin:0}
.footer-col h4{color:#eef7f6;font-size:.94rem;margin-bottom:16px;letter-spacing:.04em}
.footer-col a{display:block;font-size:.9rem;color:#96b1b2;padding:5px 0}
.footer-col a:hover{color:#7fd3cd}
.footer-bottom{
 display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
 margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 font-size:.82rem;color:#7d9899;
}
/* ============ responsive ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:30px}
 .level-grid{grid-template-columns:repeat(3,1fr)}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .cta-band{grid-template-columns:1fr;padding:36px}
}
@media (max-width:900px){
 .nav-bar{grid-template-columns:1fr;justify-items:center;min-height:66px}
 .nav-left,.nav-right{display:none}
 .nav-toggle{display:flex}
 .footer-top{grid-template-columns:1fr 1fr;gap:28px}
 .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
 .section{padding:44px 0}
 .section--tight{padding:36px 0}
 .kpi-row{grid-template-columns:repeat(2,1fr)}
 .kpi{border-right:0;border-bottom:1px solid var(--line)}
 .kpi:nth-child(odd){border-right:1px solid var(--line)}
 .kpi:nth-child(3),.kpi:nth-child(4){border-bottom:0}
 .level-grid{grid-template-columns:repeat(2,1fr)}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
 .hero-title{font-size:1.58rem}
 .cta-band{padding:28px;border-radius:var(--r-lg)}
}
@media (max-width:520px){
 .wrap{padding:0 16px}
 .kpi-row{grid-template-columns:1fr}
 .kpi{border-right:0!important;border-bottom:1px solid var(--line)}
 .kpi:last-child{border-bottom:0}
 .level-grid{grid-template-columns:1fr}
 .list-row{flex-direction:column;gap:12px;padding:18px}
 .btn{width:100%}
 .btn-row{gap:10px}
 .footer-top{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}

/* roulang page: category1 */
:root{
 --bg:#f4f7f8;
 --surface:#ffffff;
 --surface-2:#eef3f4;
 --surface-3:#e4eaec;
 --ink:#101d22;
 --ink-2:#3f5057;
 --ink-3:#78898f;
 --line:#e0e7e9;
 --line-2:#cfd9dc;
 --primary:#0e6f70;
 --primary-d:#0a5455;
 --primary-l:#e4f2f1;
 --accent:#b8792f;
 --accent-l:#fbf1e4;
 --ok:#2f8f6b;
 --r-sm:8px;
 --r-md:14px;
 --r-lg:20px;
 --r-xl:28px;
 --sh-1:0 1px 2px rgba(16,29,34,.04), 0 8px 22px rgba(16,29,34,.06);
 --sh-2:0 16px 42px rgba(16,29,34,.11);
 --sh-in:inset 0 1px 0 rgba(255,255,255,.6);
}
/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;font-size:16px}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-d)}
button{font:inherit;cursor:pointer;margin:0}
h1,h2,h3,h4,h5{margin:0 0 12px;font-weight:800;line-height:1.34;letter-spacing:.01em;color:var(--ink)}
h1{font-size:clamp(1.68rem,3.2vw,2.42rem)}
h2{font-size:clamp(1.28rem,2.2vw,1.76rem)}
h3{font-size:1.06rem}
h4{font-size:.98rem}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(14,111,112,.42);outline-offset:2px;border-radius:6px}
::selection{background:rgba(14,111,112,.18)}
@keyframes slideDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@keyframes pulse{0%{transform:scale(.92);opacity:.85}70%{transform:scale(1.28);opacity:0}100%{transform:scale(1.28);opacity:0}}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
/* ---------- header / nav ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.nav-bar{
 position:relative;
 display:grid;
 grid-template-columns:1fr auto 1fr;
 align-items:center;
 gap:14px;
 min-height:74px;
}
.nav-left{display:flex;gap:4px;justify-content:flex-start}
.nav-right{display:flex;gap:4px;justify-content:flex-end}
.nav-link{
 display:inline-flex;align-items:center;
 padding:9px 16px;border-radius:999px;
 font-size:.94rem;font-weight:600;
 color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{background:var(--surface-2);color:var(--ink)}
.nav-link.is-active{background:var(--primary-l);color:var(--primary-d)}
.nav-link.is-active:hover{background:#d6ecea;color:var(--primary-d)}
.brand{
 display:inline-flex;align-items:center;gap:10px;
 font-weight:800;font-size:1.06rem;color:var(--ink);
 letter-spacing:.02em;white-space:nowrap;
}
.brand:hover{color:var(--primary-d)}
.brand-mark{
 width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(150deg,#12797a,#0a5455);
 color:#eafaf8;font-size:1rem;font-weight:800;
 box-shadow:0 6px 16px rgba(14,111,112,.28);
}
.nav-toggle{
 display:none;position:absolute;right:0;top:50%;transform:translateY(-50%);
 width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
 background:#fff;padding:0;
 flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle:hover{border-color:var(--line-2);background:var(--surface-2)}
.mobile-nav{
 display:none;border-top:1px solid var(--line);
 background:#fff;padding:10px 22px 18px;
}
.mobile-nav.is-open{display:block;animation:slideDown .22s ease}
.mobile-nav a{
 display:block;padding:12px 14px;margin-bottom:4px;
 border-radius:12px;font-weight:600;color:var(--ink-2);
}
.mobile-nav a:hover{background:var(--surface-2);color:var(--ink)}
.mobile-nav a.is-active{background:var(--primary-l);color:var(--primary-d)}
/* ---------- generic ---------- */
.section{padding:60px 0}
.section--tight{padding:44px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:var(--primary-l);color:var(--primary-d);
 font-size:.78rem;font-weight:700;letter-spacing:.06em;
 margin-bottom:16px;
}
.eyebrow i{font-size:.8rem}
.eyebrow--accent{background:var(--accent-l);color:#8d5a1c}
.head{max-width:780px;margin-bottom:32px}
.head p{color:var(--ink-2);font-size:1rem;line-height:1.88}
.lead{font-size:1.04rem;line-height:1.9;color:var(--ink-2)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--r-lg);
 padding:26px;
 box-shadow:var(--sh-1);
 margin-bottom:0;
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:.94rem;line-height:1.82;margin:0}
.card-icon{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 background:var(--primary-l);color:var(--primary-d);font-size:1.05rem;margin-bottom:16px;
}
.card-icon--accent{background:var(--accent-l);color:#8d5a1c}
.pill{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;
 background:var(--primary-l);color:var(--primary-d);
 font-size:.76rem;font-weight:700;letter-spacing:.02em;
}
.pill--accent{background:var(--accent-l);color:#8d5a1c}
.pill--muted{background:var(--surface-2);color:var(--ink-3)}
.pill--dark{background:rgba(255,255,255,.14);color:#d8efed;border:1px solid rgba(255,255,255,.16)}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-size:.95rem;font-weight:700;letter-spacing:.01em;
 transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:.86em}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(14,111,112,.26)}
.btn-primary:hover{background:var(--primary-d);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,111,112,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(14,111,112,.24)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-d);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary-d)}
.btn-light:hover{background:#eafaf8;color:var(--primary-d);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#e9f4f3;border-color:rgba(255,255,255,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.text-link{font-weight:700;font-size:.92rem;display:inline-flex;align-items:center;gap:6px;color:var(--primary)}
.text-link i{font-size:.76em;transition:transform .2s ease}
.text-link:hover i{transform:translateX(3px)}
/* ---------- hero（全宽视频遮罩） ---------- */
.hero{position:relative;overflow:hidden;background:#0a1a1f;color:#e9f4f3;padding:64px 0 88px;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1;
 background:
  radial-gradient(115% 88% at 82% 8%,rgba(14,111,112,.62),transparent 58%),
  radial-gradient(90% 80% at 8% 92%,rgba(184,121,47,.28),transparent 62%),
  linear-gradient(158deg,#0d262b 0%,#081619 62%,#0a1f22 100%);
}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
 background-size:58px 58px;
 -webkit-mask-image:radial-gradient(90% 70% at 50% 30%,#000 10%,transparent 78%);
 mask-image:radial-gradient(90% 70% at 50% 30%,#000 10%,transparent 78%);
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.hero-badge{
 display:inline-flex;align-items:center;gap:9px;
 padding:7px 16px;border-radius:999px;
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
 color:#a9dedb;font-size:.78rem;font-weight:700;letter-spacing:.08em;
 margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:16px;text-shadow:0 2px 18px rgba(0,0,0,.28)}
.hero h1 em{font-style:normal;color:#7fd6cd}
.hero-sub{color:rgba(222,240,239,.84);font-size:1.02rem;line-height:1.92;max-width:640px}
.hero-actions{margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-note{font-size:.82rem;color:rgba(200,224,223,.62);margin-top:18px}
/* 视频遮罩框 */
.video-frame{
 position:relative;width:100%;aspect-ratio:16/11;min-height:300px;
 border-radius:var(--r-xl);overflow:hidden;
 border:1px solid rgba(255,255,255,.16);
 background:linear-gradient(150deg,rgba(22,56,62,.94),rgba(7,20,24,.98));
 box-shadow:0 34px 66px rgba(0,0,0,.46),var(--sh-in);
}
.video-frame::before{
 content:"";position:absolute;inset:0;
 background:radial-gradient(58% 58% at 50% 38%,rgba(14,111,112,.55),transparent 72%);
}
.video-frame::after{
 content:"";position:absolute;inset:0;
 background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 4px);
 opacity:.35;
 pointer-events:none;
}
.video-topbar{
 position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.1);
 font-size:.78rem;letter-spacing:.08em;color:rgba(206,230,229,.78);font-weight:700;
}
.video-topbar span{display:inline-flex;align-items:center;gap:7px}
.live-dot{width:7px;height:7px;border-radius:50%;background:#4ec9a8;box-shadow:0 0 0 4px rgba(78,201,168,.18)}
.hero-play{
 position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);
 z-index:3;width:84px;height:84px;border-radius:50%;
 border:1px solid rgba(255,255,255,.5);
 background:rgba(255,255,255,.13);
 color:#fff;font-size:1.35rem;
 display:grid;place-items:center;
 backdrop-filter:blur(7px);
 transition:transform .24s ease,background-color .24s ease,border-color .24s ease;
}
.hero-play::after{
 content:"";position:absolute;inset:-11px;border-radius:50%;
 border:1px solid rgba(255,255,255,.3);
 animation:pulse 2.8s ease-out infinite;
}
.hero-play:hover{background:rgba(255,255,255,.24);border-color:#fff;transform:translate(-50%,-50%) scale(1.06)}
.video-caption{
 position:absolute;left:20px;bottom:18px;z-index:3;
 font-size:.8rem;color:rgba(206,230,229,.72);letter-spacing:.04em;
}
.video-panel{
 position:absolute;inset:auto 0 0 0;z-index:4;
 padding:22px 24px 24px;
 background:linear-gradient(0deg,rgba(5,17,20,.97) 18%,rgba(5,17,20,.72) 72%,rgba(5,17,20,0) 100%);
 border-top:1px solid rgba(255,255,255,.14);
 opacity:0;transform:translateY(16px);pointer-events:none;
 transition:opacity .28s ease,transform .28s ease;
}
.video-panel.is-open{opacity:1;transform:none;pointer-events:auto}
.video-panel h4{color:#fff;font-size:.95rem;margin-bottom:12px}
.video-panel .demo{font-size:.9rem;color:rgba(216,236,235,.86);line-height:1.82;padding-left:14px;border-left:2px solid rgba(127,214,205,.6);margin-bottom:12px}
.video-panel .demo b{color:#7fd6cd;font-weight:700}
/* ---------- KPI 条 ---------- */
.stat-strip{position:relative;z-index:5;margin-top:-40px}
.stat-grid{
 display:grid;grid-template-columns:repeat(5,1fr);
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 box-shadow:var(--sh-2);overflow:hidden;
}
.stat{padding:24px 22px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .num{font-size:1.58rem;font-weight:800;color:var(--primary-d);line-height:1.2;letter-spacing:-.01em}
.stat .num small{font-size:.66em;font-weight:700;color:var(--ink-3);margin-left:2px}
.stat .lbl{font-size:.85rem;color:var(--ink-2);font-weight:600;margin-top:4px}
/* ---------- 力度分级 ---------- */
.level-list{display:grid;gap:14px}
.level-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:18px 20px;box-shadow:var(--sh-1);
 transition:border-color .22s ease,transform .22s ease;
}
.level-item:hover{border-color:var(--line-2);transform:translateX(3px)}
.level-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.level-head strong{font-size:1rem}
.level-head .val{font-size:.84rem;font-weight:700;color:var(--primary-d)}
.level-bar{height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.level-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#0e6f70,#4fb4a8)}
.level-bar i.is-accent{background:linear-gradient(90deg,#b8792f,#e0a85f)}
.level-bar i.is-deep{background:linear-gradient(90deg,#0a5455,#0e6f70)}
.level-item p{font-size:.88rem;color:var(--ink-2);margin:12px 0 0;line-height:1.78}
.level-item .samples{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
/* ---------- 词条卡 ---------- */
.entry-card{display:flex;flex-direction:column;height:100%}
.entry-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.entry-word{font-size:1.14rem;font-weight:800;line-height:1.3}
.entry-pinyin{font-size:.78rem;color:var(--ink-3);letter-spacing:.07em;font-weight:600;margin-top:3px}
.entry-tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0}
.entry-quote{
 margin:0;padding:12px 15px;
 border-left:3px solid var(--primary);
 background:var(--primary-l);
 border-radius:0 var(--r-sm) var(--r-sm) 0;
 font-size:.9rem;color:#204547;line-height:1.78;
}
.entry-note{font-size:.87rem;color:var(--ink-2);margin-top:14px;line-height:1.8}
/* ---------- 场景矩阵 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.scene-card{
 display:flex;gap:14px;align-items:flex-start;
 background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
 padding:20px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-icon{
 flex:0 0 40px;width:40px;height:40px;border-radius:12px;
 display:grid;place-items:center;background:var(--surface-2);color:var(--primary-d);
}
.scene-card h3{font-size:.98rem;margin-bottom:6px}
.scene-card p{font-size:.86rem;color:var(--ink-2);line-height:1.76;margin:0}
.scene-card .pill{margin-top:10px}
/* ---------- 地区分布 ---------- */
.region-list{display:grid;gap:15px}
.region-row{display:grid;grid-template-columns:132px 1fr 62px;align-items:center;gap:16px}
.region-name{font-size:.9rem;font-weight:700;color:var(--ink)}
.region-bar{height:10px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.region-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#0e6f70,#57b8ac)}
.region-row:nth-child(even) .region-bar i{background:linear-gradient(90deg,#0a5455,#3fa79c)}
.region-val{font-size:.85rem;font-weight:700;color:var(--ink-2);text-align:right}
.region-foot{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;padding-top:20px;border-top:1px dashed var(--line-2)}
/* ---------- 时间线 ---------- */
.timeline{border-top:1px solid var(--line)}
.tl-item{
 display:grid;grid-template-columns:118px 1fr;gap:20px;
 padding:20px 0;border-bottom:1px solid var(--line);
 transition:background-color .2s ease;
}
.tl-item:hover{background:#fafcfc}
.tl-date{font-size:.82rem;font-weight:700;color:var(--primary-d);letter-spacing:.02em;padding-left:2px}
.tl-item h4{margin-bottom:6px;font-size:.98rem}
.tl-item p{font-size:.88rem;color:var(--ink-2);line-height:1.78;margin:0}
/* ---------- 频道矩阵 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:26px;box-shadow:var(--sh-1);
 transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.channel-card.is-current{border-color:rgba(14,111,112,.42);background:linear-gradient(180deg,#f6fbfa,#fff)}
.channel-card h3{margin:14px 0 8px}
.channel-card p{font-size:.9rem;color:var(--ink-2);line-height:1.8;margin-bottom:16px}
.channel-card .more{font-weight:700;font-size:.9rem;display:inline-flex;align-items:center;gap:7px}
.channel-card .more i{font-size:.76em;transition:transform .2s ease}
.channel-card:hover .more i{transform:translateX(3px)}
/* ---------- 收口 CTA ---------- */
.cta-band{
 position:relative;overflow:hidden;
 background:linear-gradient(140deg,#0d2a2f,#0a5455 70%,#0e6f70);
 color:#eaf7f6;border-radius:var(--r-xl);
 padding:44px 46px;
 display:grid;grid-template-columns:1.4fr auto;gap:30px;align-items:center;
 box-shadow:0 26px 56px rgba(10,60,62,.28);
}
.cta-band::after{
 content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.16),transparent 68%);
}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(226,244,243,.84);font-size:.96rem;line-height:1.85;margin:0;max-width:620px}
/* ---------- footer ---------- */
.site-footer{background:#0c1c21;color:#c3d6d6;padding:56px 0 26px;margin-top:0}
.footer-top{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;
 padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{color:#fff}
.footer-brand .brand-text{color:#fff}
.footer-brand p{color:rgba(195,214,214,.76);font-size:.91rem;line-height:1.86;margin:16px 0 0;max-width:430px}
.footer-tech{font-size:.83rem;color:rgba(195,214,214,.5);letter-spacing:.03em;margin-top:10px}
.footer-col h4{color:#fff;font-size:.96rem;margin-bottom:14px}
.footer-col a{display:block;color:rgba(195,214,214,.76);font-size:.9rem;padding:5px 0}
.footer-col a:hover{color:#7fd6cd}
.footer-bottom{
 display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
 padding-top:20px;font-size:.84rem;color:rgba(195,214,214,.58);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .nav-left,.nav-right{display:none}
 .nav-bar{display:flex;justify-content:center;min-height:66px}
 .nav-toggle{display:flex}
 .hero-grid{grid-template-columns:1fr;gap:36px}
 .hero{padding:52px 0 78px}
 .stat-grid{grid-template-columns:repeat(3,1fr)}
 .stat:nth-child(3){border-right:0}
 .stat:nth-child(n+4){border-top:1px solid var(--line)}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .scene-grid,.channel-grid{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:30px}
 .footer-top{grid-template-columns:1fr 1fr;gap:30px}
 .cta-band{grid-template-columns:1fr;padding:36px 32px}
}
@media (max-width:768px){
 .section{padding:46px 0}
 .grid-2,.grid-3{grid-template-columns:1fr}
 .scene-grid,.channel-grid{grid-template-columns:1fr}
 .stat-grid{grid-template-columns:repeat(2,1fr)}
 .stat{padding:20px 18px}
 .stat:nth-child(2n){border-right:0}
 .stat:nth-child(3){border-right:1px solid var(--line)}
 .region-row{grid-template-columns:104px 1fr 52px;gap:12px}
 .tl-item{grid-template-columns:1fr;gap:8px}
 .footer-top{grid-template-columns:1fr}
 .hero-play{width:70px;height:70px;font-size:1.15rem}
 .video-frame{min-height:260px}
}
@media (max-width:520px){
 .wrap{padding:0 16px}
 .card{padding:20px}
 .btn{padding:12px 20px;font-size:.9rem}
 .btn-row .btn{width:100%}
 .hero h1{font-size:1.55rem}
 .hero-sub{font-size:.96rem}
 .grid-4{grid-template-columns:1fr}
 .stat-grid{grid-template-columns:1fr}
 .stat{border-right:0;border-bottom:1px solid var(--line)}
 .stat:last-child{border-bottom:0}
 .region-row{grid-template-columns:88px 1fr 46px}
 .cta-band{padding:28px 22px;border-radius:var(--r-lg)}
 .video-topbar{font-size:.72rem;padding:12px 14px}
 .video-caption{left:14px;bottom:14px;font-size:.74rem}
}

/* roulang page: category3 */
:root{
 --bg:#f4f7f8;
 --surface:#ffffff;
 --surface-2:#eef3f4;
 --surface-3:#e4eaec;
 --ink:#101d22;
 --ink-2:#3f5057;
 --ink-3:#78898f;
 --line:#e0e7e9;
 --line-2:#cfd9dc;
 --primary:#0e6f70;
 --primary-d:#0a5455;
 --primary-l:#e4f2f1;
 --accent:#b8792f;
 --accent-l:#fbf1e4;
 --ok:#2f8f6b;
 --r-sm:8px;
 --r-md:14px;
 --r-lg:20px;
 --r-xl:28px;
 --sh-1:0 1px 2px rgba(16,29,34,.04), 0 8px 22px rgba(16,29,34,.06);
 --sh-2:0 16px 42px rgba(16,29,34,.11);
 --sh-in:inset 0 1px 0 rgba(255,255,255,.6);
}
/* roulang page: fangyanduizhao */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0 0 .55em;font-weight:800;line-height:1.32;letter-spacing:.01em;color:var(--ink)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-d)}
button{font:inherit;cursor:pointer}
::selection{background:var(--primary-l);color:var(--primary-d)}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
/* ---------- header / nav ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.nav-bar{
 position:relative;
 display:grid;
 grid-template-columns:1fr auto 1fr;
 align-items:center;
 gap:14px;
 min-height:74px;
}
.nav-left{display:flex;gap:4px;justify-content:flex-start}
.nav-right{display:flex;gap:4px;justify-content:flex-end}
.nav-link{
 display:inline-flex;align-items:center;
 padding:9px 16px;border-radius:999px;
 font-size:.94rem;font-weight:600;
 color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{background:var(--surface-2);color:var(--ink)}
.nav-link.is-active{background:var(--primary-l);color:var(--primary-d)}
.nav-link.is-active:hover{background:#d6ecea;color:var(--primary-d)}
.brand{
 display:inline-flex;align-items:center;gap:10px;
 font-weight:800;font-size:1.06rem;color:var(--ink);
 letter-spacing:.02em;white-space:nowrap;
}
.brand:hover{color:var(--primary-d)}
.brand-mark{
 width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(150deg,#12797a,#0a5455);
 color:#eafaf8;font-size:1rem;font-weight:800;
 box-shadow:0 6px 16px rgba(14,111,112,.28);
}
.nav-toggle{
 display:none;position:absolute;right:0;top:50%;transform:translateY(-50%);
 width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
 background:#fff;padding:0;
 flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle:hover{border-color:var(--line-2);background:var(--surface-2)}
.mobile-nav{
 display:none;border-top:1px solid var(--line);
 background:#fff;padding:10px 22px 18px;
}
.mobile-nav.is-open{display:block;animation:slideDown .22s ease}
.mobile-nav a{
 display:block;padding:12px 14px;margin-bottom:4px;
 border-radius:12px;font-weight:600;color:var(--ink-2);
}
.mobile-nav a:hover{background:var(--surface-2);color:var(--ink)}
.mobile-nav a.is-active{background:var(--primary-l);color:var(--primary-d)}
@keyframes slideDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
/* ---------- generic ---------- */
.section{padding:58px 0}
.section--tight{padding:44px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:var(--primary-l);color:var(--primary-d);
 font-size:.78rem;font-weight:700;letter-spacing:.06em;
 margin-bottom:16px;
}
.eyebrow i{font-size:.8rem}
.section-head{max-width:800px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.32rem,2.3vw,1.78rem);margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:1rem;line-height:1.85}
.section-head--center{max-width:760px;margin-left:auto;margin-right:auto;text-align:center}
.lead{font-size:1.06rem;line-height:1.88;color:var(--ink-2)}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--r-lg);
 padding:26px;
 box-shadow:var(--sh-1);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.card h3{font-size:1.06rem;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:.94rem;line-height:1.8;margin:0}
.card-icon{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 background:var(--primary-l);color:var(--primary-d);font-size:1.05rem;margin-bottom:16px;
}
.card-icon--accent{background:var(--accent-l);color:#8d5a1c}
.pill{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;
 background:var(--primary-l);color:var(--primary-d);
 font-size:.76rem;font-weight:700;letter-spacing:.02em;
}
.pill--accent{background:var(--accent-l);color:#8d5a1c}
.pill--muted{background:var(--surface-2);color:var(--ink-3)}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-size:.95rem;font-weight:700;letter-spacing:.01em;
 transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:.86em}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(14,111,112,.26)}
.btn-primary:hover{background:var(--primary-d);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,111,112,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(14,111,112,.24)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-d);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary-d)}
.btn-light:hover{background:#eafaf8;color:var(--primary-d);transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.text-link{font-weight:700;font-size:.92rem;display:inline-flex;align-items:center;gap:6px}
.text-link i{font-size:.76em;transition:transform .2s ease}
.text-link:hover i{transform:translateX(3px)}
/* ---------- page hero ---------- */
.page-hero{
 padding:44px 0 56px;
 background:linear-gradient(180deg,#ffffff 0%,#f4f7f8 100%);
 border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:9px;font-size:.82rem;color:var(--ink-3);margin-bottom:16px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--primary-d)}
.crumb span.sep{color:var(--line-2)}
.page-hero h1{font-size:clamp(1.72rem,3.4vw,2.5rem);line-height:1.28;margin-bottom:16px}
.page-hero .lead{max-width:660px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 26px}
.stat-panel{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--r-xl);
 box-shadow:var(--sh-1);
 padding:24px;
 margin-top:8px;
}
.stat-panel h2{font-size:.88rem;letter-spacing:.08em;color:var(--ink-3);font-weight:700;margin-bottom:16px}
.stat-grid{
 display:grid;grid-template-columns:1fr 1fr;gap:1px;
 background:var(--line);border-radius:var(--r-md);overflow:hidden;margin-bottom:18px;
}
.stat-cell{background:#fff;padding:16px 15px}
.stat-cell b{display:block;font-size:1.72rem;font-weight:800;letter-spacing:-.02em;color:var(--primary-d);line-height:1.2}
.stat-cell span{font-size:.8rem;color:var(--ink-3);display:block;margin-top:2px}
.stat-note{
 display:flex;gap:10px;align-items:flex-start;
 background:var(--surface-2);border-radius:var(--r-md);padding:14px 16px;
 font-size:.86rem;color:var(--ink-2);line-height:1.7;
}
.stat-note i{color:var(--accent);margin-top:4px}
/* ---------- table ---------- */
.table-shell{
 border:1px solid var(--line);border-radius:var(--r-lg);
 background:#fff;box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp-table{
 width:100%;min-width:780px;margin:0;border-collapse:collapse;
 background:transparent;font-size:.92rem;
}
.cmp-table thead th{
 background:var(--surface-2);color:var(--ink-2);
 font-size:.8rem;font-weight:700;letter-spacing:.06em;
 text-align:left;padding:14px 18px;white-space:nowrap;
 border-bottom:1px solid var(--line);
}
.cmp-table td{
 padding:15px 18px;border-bottom:1px solid var(--line);
 color:var(--ink-2);vertical-align:top;line-height:1.7;
}
.cmp-table tbody tr{transition:background-color .18s ease}
.cmp-table tbody tr:hover{background:#f8fbfb}
.cmp-table tbody tr:last-child td{border-bottom:0}
.t-name{color:var(--ink);font-weight:700;white-space:nowrap}
.t-word{color:var(--primary-d);font-weight:700;white-space:nowrap}
.table-foot{
 padding:16px 20px;background:var(--surface-2);
 border-top:1px solid var(--line);font-size:.84rem;color:var(--ink-3);line-height:1.7;
}
/* ---------- level badges ---------- */
.lvl{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 11px;border-radius:999px;
 font-size:.75rem;font-weight:700;white-space:nowrap;
}
.lvl-1{background:#eaf6f1;color:#226b52}
.lvl-2{background:var(--primary-l);color:var(--primary-d)}
.lvl-3{background:var(--accent-l);color:#8d5a1c}
.lvl-4{background:#fbe9e6;color:#a3402f}
/* ---------- region cards ---------- */
.region-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:22px;height:100%;box-shadow:var(--sh-1);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.region-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.region-code{
 font-size:.7rem;letter-spacing:.16em;font-weight:700;color:var(--ink-3);
 display:block;margin-bottom:10px;
}
.region-card h3{font-size:1.02rem;margin-bottom:8px}
.region-card p{font-size:.9rem;line-height:1.78;color:var(--ink-2);margin:0 0 14px}
.region-meta{display:flex;flex-wrap:wrap;gap:8px}
/* ---------- meter ---------- */
.meter-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.meter-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:26px;box-shadow:var(--sh-1);height:100%;
 display:flex;flex-direction:column;gap:14px;
 transition:transform .25s ease,box-shadow .25s ease;
}
.meter-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.meter-card h3{font-size:1.08rem;margin:0}
.meter-card p{font-size:.9rem;color:var(--ink-2);line-height:1.78;margin:0}
.meter-track{height:10px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.meter-fill{height:100%;border-radius:999px}
.fill-1{width:30%;background:#2f8f6b}
.fill-2{width:62%;background:var(--primary)}
.fill-3{width:92%;background:#b8792f}
.meter-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
/* ---------- scene cards ---------- */
.scene-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:22px;height:100%;box-shadow:var(--sh-1);
 border-left:3px solid var(--primary-l);
 transition:transform .25s ease,box-shadow .25s ease,border-left-color .25s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-left-color:var(--primary)}
.scene-card h3{font-size:1rem;margin-bottom:8px;display:flex;align-items:center;gap:9px}
.scene-card h3 i{color:var(--primary);font-size:.9rem}
.scene-card p{font-size:.9rem;color:var(--ink-2);line-height:1.78;margin:0 0 14px}
/* ---------- traffic lights ---------- */
.traffic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.traffic-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:24px;box-shadow:var(--sh-1);border-top:4px solid var(--line-2);height:100%;
}
.traffic-card h3{font-size:1.02rem;display:flex;align-items:center;gap:9px;margin-bottom:10px}
.traffic-card p{font-size:.9rem;color:var(--ink-2);line-height:1.8;margin-bottom:14px}
.traffic-card ul{display:grid;gap:8px}
.traffic-card li{
 font-size:.87rem;color:var(--ink-2);
 padding-left:18px;position:relative;line-height:1.7;
}
.traffic-card li::before{
 content:"";position:absolute;left:0;top:.6em;
 width:7px;height:7px;border-radius:50%;background:var(--line-2);
}
.t-green{border-top-color:var(--ok)}
.t-green h3 i{color:var(--ok)}
.t-green li::before{background:var(--ok)}
.t-amber{border-top-color:var(--accent)}
.t-amber h3 i{color:var(--accent)}
.t-amber li::before{background:var(--accent)}
.t-red{border-top-color:#c25843}
.t-red h3 i{color:#c25843}
.t-red li::before{background:#c25843}
/* ---------- dark band ---------- */
.dark-band{
 background:#0d2226;color:#cfe0e2;
 padding:60px 0;
}
.dark-band .eyebrow{background:rgba(255,255,255,.12);color:#a8ded9}
.dark-band h2{color:#fff;font-size:clamp(1.3rem,2.2vw,1.7rem)}
.dark-band .section-head p{color:#9db6b9}
.dim-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:34px}
.dim-card{
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--r-md);
 padding:22px;
 transition:background-color .25s ease,border-color .25s ease,transform .25s ease;
}
.dim-card:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);transform:translateY(-3px)}
.dim-card i{color:#7fd0c8;font-size:1.1rem;margin-bottom:12px;display:block}
.dim-card h3{color:#fff;font-size:1rem;margin-bottom:8px}
.dim-card p{color:#9db6b9;font-size:.88rem;line-height:1.76;margin:0}
.source-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;border-top:1px solid rgba(255,255,255,.12);padding-top:28px}
.source-item{display:flex;gap:12px;align-items:flex-start}
.source-item i{color:#7fd0c8;margin-top:5px}
.source-item b{display:block;color:#e7f2f3;font-size:.94rem;margin-bottom:2px}
.source-item span{font-size:.85rem;color:#9db6b9;line-height:1.7}
/* ---------- QA ---------- */
.qa-list{display:grid;gap:14px}
.qa-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
 padding:22px 24px;box-shadow:var(--sh-1);
 transition:border-color .22s ease,box-shadow .22s ease;
}
.qa-item:hover{border-color:var(--line-2);box-shadow:var(--sh-2)}
.qa-item h3{font-size:1rem;margin-bottom:9px;display:flex;gap:10px;align-items:flex-start}
.qa-item h3 i{color:var(--primary);font-size:.86rem;margin-top:6px}
.qa-item p{font-size:.93rem;color:var(--ink-2);line-height:1.85;margin:0;padding-left:24px}
/* ---------- topic list ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic-item{
 display:flex;gap:14px;align-items:flex-start;
 padding:20px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
 box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.topic-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--primary)}
.topic-item i{
 width:38px;height:38px;flex:0 0 38px;border-radius:12px;
 display:grid;place-items:center;background:var(--primary-l);color:var(--primary-d);
}
.topic-item b{display:block;color:var(--ink);font-size:.98rem;margin-bottom:4px}
.topic-item span{display:block;font-size:.87rem;color:var(--ink-2);line-height:1.7}
/* ---------- CTA ---------- */
.cta-band{
 background:var(--primary-d);
 color:#dff2f0;
 border-radius:var(--r-xl);
 padding:44px 40px;
 position:relative;overflow:hidden;
}
.cta-band::after{
 content:"";position:absolute;right:-70px;top:-70px;
 width:240px;height:240px;border-radius:50%;
 background:rgba(255,255,255,.06);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta-inner h2{color:#fff;font-size:clamp(1.24rem,2.2vw,1.6rem);margin-bottom:10px}
.cta-inner p{color:#b6d8d5;font-size:.96rem;line-height:1.8;margin:0;max-width:600px}
/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:52px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding-bottom:34px}
.footer-brand p{font-size:.92rem;color:var(--ink-2);line-height:1.85;margin:16px 0 10px;max-width:440px}
.footer-tech{font-size:.82rem;color:var(--ink-3);margin:0}
.footer-col h4{font-size:.88rem;letter-spacing:.06em;color:var(--ink-3);margin-bottom:14px;font-weight:700}
.footer-col a{display:block;font-size:.92rem;color:var(--ink-2);padding:5px 0}
.footer-col a:hover{color:var(--primary-d)}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 border-top:1px solid var(--line);padding-top:20px;
 font-size:.84rem;color:var(--ink-3);
}
/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
 .region-grid,.scene-grid,.traffic-grid,.dim-grid{grid-template-columns:repeat(2,1fr)}
 .source-row{grid-template-columns:1fr}
 .meter-grid{grid-template-columns:1fr}
 .topic-grid{grid-template-columns:1fr}
 .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:860px){
 .nav-left,.nav-right{display:none}
 .nav-toggle{display:flex}
 .nav-bar{grid-template-columns:1fr;justify-items:center;padding:12px 0}
 .brand{justify-self:center}
 .section{padding:46px 0}
 .cta-band{padding:34px 24px}
}
@media screen and (max-width:768px){
 .page-hero{padding:32px 0 42px}
 .stat-grid{grid-template-columns:1fr 1fr}
 .region-grid,.scene-grid,.traffic-grid,.dim-grid{grid-template-columns:1fr}
 .footer-top{grid-template-columns:1fr}
 .cta-inner{flex-direction:column;align-items:flex-start}
 .qa-item p{padding-left:0}
}
@media screen and (max-width:520px){
 .wrap{padding:0 16px}
 .page-hero h1{font-size:1.5rem;line-height:1.35}
 .lead{font-size:1rem}
 .card,.region-card,.scene-card,.traffic-card,.meter-card,.qa-item{padding:18px}
 .stat-cell b{font-size:1.42rem}
 .btn{width:100%}
 .btn-row{gap:10px}
 .footer-bottom{flex-direction:column;gap:6px}
}