/* roulang page: index */
:root{
  --ink:#1a1f3d;
  --ink-2:#232a52;
  --ink-3:#0f1330;
  --gold:#ffb400;
  --gold-2:#ffd166;
  --gold-3:#e09b00;
  --cyan:#5fe3d8;
  --bg:#f5f7fc;
  --bg-2:#eceff9;
  --card:#ffffff;
  --text:#1b2038;
  --muted:#5c6382;
  --line:#e3e8f4;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow-sm:0 2px 12px rgba(26,31,61,.06);
  --shadow:0 14px 36px rgba(26,31,61,.10);
  --shadow-lg:0 26px 64px rgba(26,31,61,.18);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  padding-bottom:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,180,0,.65);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(19,23,46,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;gap:18px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold) 45%,#ff8a00);
  color:#1a1f3d;font-weight:900;font-size:18px;
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(255,180,0,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{color:#fff;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand-sub{color:rgba(255,255,255,.45);font-size:11px;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
  color:rgba(255,255,255,.74);font-size:15px;font-weight:500;
  padding:9px 14px;border-radius:10px;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{color:var(--gold);background:rgba(255,180,0,.13);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang-switch{
  display:flex;align-items:center;gap:2px;padding:3px;
  border-radius:999px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
}
.lang-switch button{
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  color:rgba(255,255,255,.6);letter-spacing:.5px;transition:.2s;
}
.lang-switch button.is-active{background:var(--gold);color:#1a1f3d;font-weight:700}
.lang-switch button:hover{color:#fff}
.lang-switch button.is-active:hover{color:#1a1f3d}
.nav-cta{
  padding:9px 20px;border-radius:10px;font-size:14.5px;font-weight:700;
  color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 22px rgba(255,180,0,.28);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,180,0,.38)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  background:rgba(255,255,255,.09);color:#fff;font-size:19px;
  align-items:center;justify-content:center;
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(1100px 620px at 12% -12%,#2c3468 0%,#1a1f3d 52%,#0e1229 100%);
  padding:82px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.16;mix-blend-mode:screen;
}
.hero::after{
  content:"";position:absolute;left:-140px;top:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(255,180,0,.22),transparent 68%);
  filter:blur(20px);pointer-events:none;
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 15px;border-radius:999px;font-size:13px;
  color:var(--gold-2);background:rgba(255,180,0,.12);
  border:1px solid rgba(255,180,0,.3);margin-bottom:22px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--gold);display:inline-block}
.hero h1{
  font-size:46px;line-height:1.24;font-weight:900;letter-spacing:-.5px;margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--gold-2),var(--gold) 55%,#ff8a00);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{color:rgba(255,255,255,.78);font-size:16.5px;line-height:1.95;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 30px;border-radius:12px;font-weight:700;font-size:15.5px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn--gold{
  color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold) 60%,#ff9f00);
  box-shadow:0 12px 30px rgba(255,180,0,.32);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,180,0,.42)}
.btn--ghost{color:#fff;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.05)}
.btn--ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.btn--dark{color:#fff;background:var(--ink);box-shadow:var(--shadow-sm)}
.btn--dark:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn--block{width:100%}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat-chip{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);
  min-width:132px;
}
.stat-chip b{color:var(--gold-2);font-size:20px;font-weight:800;line-height:1.2}
.stat-chip span{font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.4px}

/* console */
.console{
  border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(180deg,#0d1130,#080b21);
  border:1px solid rgba(255,180,0,.22);
  box-shadow:var(--shadow-lg);
}
.console__bar{display:flex;align-items:center;gap:8px;padding:14px 18px;background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.08)}
.console__bar i{width:10px;height:10px;border-radius:50%;display:inline-block;background:#3d4470}
.console__bar i:nth-child(1){background:#ff6b5e}
.console__bar i:nth-child(2){background:#ffc44d}
.console__bar i:nth-child(3){background:#59d98b}
.console__bar em{margin-left:auto;font-style:normal;font-size:12px;color:rgba(255,255,255,.42);letter-spacing:.6px}
.console__body{padding:20px 20px 16px;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:13px;line-height:2.05;color:rgba(255,255,255,.78)}
.console__body p{word-break:break-word}
.c-muted{color:rgba(255,255,255,.34)}
.c-gold{color:var(--gold)}
.c-cyan{color:var(--cyan)}
.c-line{color:#8f97c9}
.console__prompt{margin-top:10px;color:var(--gold-2);border-top:1px dashed rgba(255,255,255,.14);padding-top:12px}
.console__foot{display:flex;justify-content:space-between;gap:12px;padding:12px 20px;font-size:12px;color:rgba(255,255,255,.4);background:rgba(255,255,255,.03);border-top:1px solid rgba(255,255,255,.07)}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section--alt{background:var(--bg-2)}
.section--dark{background:linear-gradient(160deg,#1a1f3d,#111633 70%,#0d1128);color:#fff}
.section--tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--gold-3);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:33px;line-height:1.35;font-weight:900;letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9}
.section-head--light h2{color:#fff}
.section-head--light p{color:rgba(255,255,255,.68)}
.section-head--light .eyebrow{color:var(--gold)}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dcf0}
.card h3{font-size:19px;font-weight:800;margin-bottom:10px;line-height:1.45}
.card p{color:var(--muted);font-size:14.6px;line-height:1.85}
.card-num{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  font-weight:900;font-size:16px;color:#1a1f3d;
  background:linear-gradient(135deg,var(--gold-2),var(--gold));
  margin-bottom:16px;box-shadow:0 8px 18px rgba(255,180,0,.22);
}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--gold-3);
  background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.24);
}
.tag--dark{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18)}
.tag-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* scene */
.scene-card{position:relative;overflow:hidden;padding:0;display:flex;flex-direction:column}
.scene-card img{height:170px;width:100%;object-fit:cover}
.scene-card__body{padding:22px 24px 26px}
.scene-card__body h3{font-size:18px}
.scene-card:hover img{transform:scale(1.04)}
.scene-card img{transition:transform .5s ease}

/* matrix */
.matrix-card{
  position:relative;overflow:hidden;padding:30px 28px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;gap:12px;
}
.matrix-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,0,.18),transparent 70%);
}
.matrix-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.matrix-card h3{font-size:21px;font-weight:900}
.matrix-card p{color:var(--muted);font-size:14.6px}
.matrix-more{font-size:14px;font-weight:700;color:var(--gold-3);display:inline-flex;align-items:center;gap:6px}
.matrix-more::after{content:"→";transition:transform .2s ease}
.matrix-card:hover .matrix-more::after{transform:translateX(4px)}

/* trust */
.trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.trust-item{
  display:flex;gap:14px;align-items:flex-start;padding:20px 22px;border-radius:14px;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);
  transition:background .25s ease,border-color .25s ease;
}
.trust-item:hover{background:rgba(255,255,255,.1);border-color:rgba(255,180,0,.35)}
.trust-item i{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,180,0,.16);color:var(--gold);font-style:normal;font-size:15px;font-weight:800;
}
.trust-item b{display:block;font-size:15.5px;margin-bottom:4px}
.trust-item span{color:rgba(255,255,255,.62);font-size:13.6px;line-height:1.7}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding:28px 26px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:34px;font-weight:900;color:rgba(26,31,61,.1);line-height:1;
  display:block;margin-bottom:12px;
}
.step h3{font-size:18px;font-weight:800;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.6px;line-height:1.85}

/* ladder */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ladder-item{
  padding:24px 22px;border-radius:14px;background:var(--card);border:1px solid var(--line);
  position:relative;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease;
}
.ladder-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.ladder-item b{display:block;font-size:16px;margin-bottom:8px}
.ladder-item span{color:var(--muted);font-size:13.8px;line-height:1.8}
.ladder-item em{
  display:inline-block;font-style:normal;font-size:12px;font-weight:700;color:var(--gold-3);
  background:rgba(255,180,0,.12);padding:2px 10px;border-radius:999px;margin-bottom:12px;
}

/* compare table */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow-sm)}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:16px 22px;text-align:left;font-size:14.8px;border-bottom:1px solid var(--line)}
table.compare thead th{background:#f3f6fd;font-weight:800;color:var(--ink);font-size:15px}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover{background:#fafbff}
table.compare td:first-child{font-weight:700;color:var(--ink)}
table.compare td:not(:first-child){color:var(--muted)}
table.compare .col-hl{color:var(--gold-3);font-weight:700}

/* case */
.case-card{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:0;overflow:hidden;
  border-radius:var(--radius-lg);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);
}
.case-card img{width:100%;height:100%;object-fit:cover;min-height:300px}
.case-card__body{padding:38px 40px}
.case-card__body h3{font-size:24px;font-weight:900;margin-bottom:16px;line-height:1.4}
.case-row{display:flex;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.8px}
.case-row:last-of-type{border-bottom:0}
.case-row b{flex:0 0 68px;color:var(--gold-3);font-weight:800}
.case-row span{color:var(--muted);line-height:1.8}

/* kpi */
.kpi-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:34px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#1a1f3d,#252c58 65%,#1a1f3d);
  color:#fff;box-shadow:var(--shadow-lg);
}
.kpi{text-align:center;padding:8px 6px}
.kpi b{display:block;font-size:32px;font-weight:900;color:var(--gold-2);line-height:1.2}
.kpi span{display:block;margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.62)}

/* rank */
.rank-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.rank-item{display:flex;align-items:center;gap:16px;padding:16px 22px;border-bottom:1px solid var(--line);transition:background .2s ease}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:#fafbff}
.rank-index{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-size:13px;font-weight:800;background:#eef1fa;color:#5c6382;flex-shrink:0}
.rank-item:nth-child(1) .rank-index,.rank-item:nth-child(2) .rank-index,.rank-item:nth-child(3) .rank-index{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1a1f3d}
.rank-title{font-weight:700;font-size:15px}
.rank-desc{color:var(--muted);font-size:13.4px;margin-top:2px}
.rank-heat{margin-left:auto;font-size:13.5px;color:var(--gold-3);font-weight:800;white-space:nowrap}

/* media rail */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:#d3daea;border-radius:99px}
.rail-card{
  flex:0 0 292px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.rail-card img{height:158px;width:100%;object-fit:cover}
.rail-card__body{padding:18px 20px 22px}
.rail-card__body h3{font-size:16.5px;font-weight:800;margin:10px 0 6px;line-height:1.5}
.rail-card__body p{color:var(--muted);font-size:13.8px;line-height:1.75}

/* news */
.news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:32px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:block;padding:22px 24px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#d5dcf0}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:12.6px;color:var(--muted)}
.news-item h3{font-size:17.5px;font-weight:800;line-height:1.5;margin-bottom:8px}
.news-item p{color:var(--muted);font-size:14.2px;line-height:1.8}
.news-more{margin-top:22px;display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--gold-3);font-size:15px}
.news-more:hover{gap:13px}
.side-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.side-panel h3{font-size:17px;font-weight:800;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.side-item{display:block;padding:12px 0;border-bottom:1px dashed var(--line)}
.side-item:last-child{border-bottom:0;padding-bottom:0}
.side-item b{display:block;font-size:14.6px;font-weight:700;line-height:1.6;margin-bottom:5px;transition:color .2s ease}
.side-item:hover b{color:var(--gold-3)}
.side-item span{font-size:12.6px;color:var(--muted)}
.empty-note{padding:26px;border-radius:var(--radius);background:#fff;border:1px dashed var(--line);color:var(--muted);font-size:14.5px;text-align:center}

/* testimonials */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.voice-card{
  position:relative;padding:26px 26px 24px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.voice-card::before{
  content:"“";position:absolute;top:6px;right:22px;font-size:56px;line-height:1;
  color:rgba(255,180,0,.22);font-family:Georgia,serif;
}
.voice-card p{color:#3b4162;font-size:14.8px;line-height:1.9;position:relative;z-index:1}
.voice-user{display:flex;align-items:center;gap:11px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.voice-avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,#2c3468,#1a1f3d);color:var(--gold-2);font-weight:800;font-size:14px;
}
.voice-user b{display:block;font-size:14px}
.voice-user span{font-size:12.4px;color:var(--muted)}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(255,180,0,.5);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 54px 20px 24px;position:relative;
  font-weight:800;font-size:16.2px;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--gold-3);line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-answer{padding:0 24px 22px;color:var(--muted);font-size:14.8px;line-height:1.9}

/* form */
.form-band{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:52px;border-radius:var(--radius-lg);
  background:linear-gradient(130deg,#1a1f3d,#242c58 60%,#151a3a);
  color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.form-band::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,0,.2),transparent 70%);
}
.form-band__text{position:relative;z-index:2}
.form-band__text h2{font-size:30px;font-weight:900;line-height:1.4;margin-bottom:14px}
.form-band__text p{color:rgba(255,255,255,.7);font-size:15px;line-height:1.9}
.form-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.form-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:rgba(255,255,255,.72)}
.form-points li::before{content:"✓";color:var(--gold);font-weight:800}
.form-card{position:relative;z-index:2;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.4px;color:rgba(255,255,255,.72);margin-bottom:7px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:11px;
  background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.24);
  color:#1b2038;font-size:14.6px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,180,0,.24);
}
.field input::placeholder{color:#9aa2bd}
.form-note{font-size:12.8px;color:rgba(255,255,255,.55);margin-top:12px;line-height:1.7}
.form-feedback{margin-top:12px;font-size:13.6px;color:var(--gold-2);min-height:20px}

/* friendly bar */
.friendly{
  display:flex;flex-wrap:wrap;gap:18px 34px;align-items:center;justify-content:space-between;
  padding:24px 30px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.friendly b{font-size:15.5px}
.friendly-list{display:flex;flex-wrap:wrap;gap:10px}
.friendly-list span{
  font-size:13.2px;color:var(--muted);background:#f2f5fc;
  padding:6px 14px;border-radius:999px;border:1px solid #e3e8f4;
}

/* footer */
.site-footer{background:#12162e;color:rgba(255,255,255,.66);padding:64px 0 0;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:46px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.2px;line-height:1.9;max-width:400px;color:rgba(255,255,255,.55)}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.2px;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:22px 0 26px;font-size:13px;color:rgba(255,255,255,.42)}
.footer-bottom a:hover{color:var(--gold)}

/* fixed cta */
.fixed-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(15,19,42,.96);backdrop-filter:blur(12px);
  border-top:1px solid rgba(255,180,0,.28);
}
.fixed-cta__inner{display:flex;align-items:center;gap:18px;justify-content:space-between;padding:12px 24px}
.fixed-cta__text b{display:block;color:#fff;font-size:14.6px;font-weight:800}
.fixed-cta__text span{font-size:12.6px;color:rgba(255,255,255,.55)}
.fixed-cta .btn{padding:10px 24px;font-size:14px;border-radius:10px;white-space:nowrap}

/* responsive */
@media (max-width:1100px){
  .hero__inner{grid-template-columns:1fr;gap:44px}
  .console{max-width:640px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .ladder{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr}
  .form-band{grid-template-columns:1fr;padding:38px}
  .case-card{grid-template-columns:1fr}
  .case-card img{min-height:220px;height:220px}
}
@media (max-width:900px){
  .nav-links{
    display:none;position:absolute;top:72px;left:-24px;right:-24px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#151934;padding:14px 24px 22px;
    border-bottom:1px solid rgba(255,255,255,.1);
    box-shadow:0 22px 40px rgba(0,0,0,.35);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15.5px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .trust-strip{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .kpi-bar{grid-template-columns:repeat(2,1fr);padding:26px}
  .voice-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:64px 0}
  .hero{padding:60px 0 74px}
  .hero h1{font-size:36px}
  .section-head h2{font-size:27px}
  .form-band__text h2{font-size:25px}
}
@media (max-width:600px){
  .container{padding:0 18px}
  .brand-sub{display:none}
  .brand-name{font-size:16.5px}
  .lang-switch button{padding:4px 9px;font-size:11.5px}
  .hero h1{font-size:29px;line-height:1.32}
  .hero-desc{font-size:15.2px}
  .btn{width:100%;padding:13px 20px}
  .hero-actions{gap:10px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .trust-strip{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .section-head h2{font-size:23px}
  .kpi-bar{grid-template-columns:1fr;gap:8px;padding:22px}
  .kpi b{font-size:26px}
  .form-band{padding:26px 20px}
  .footer-top{grid-template-columns:1fr}
  .fixed-cta__inner{flex-direction:column;align-items:stretch;gap:10px;padding:10px 18px}
  .fixed-cta .btn{width:100%}
  .console__body{font-size:11.8px;line-height:1.95;padding:16px}
  .rank-heat{display:none}
  .rank-item{padding:14px 16px;gap:12px}
  .news-item{padding:18px}
  body{padding-bottom:118px}
  .friendly{padding:20px}
}
@media (min-width:601px){
  body{padding-bottom:76px}
}

/* roulang page: article */
:root{
  --ink:#1a1f3d;
  --ink-2:#232a52;
  --ink-3:#0f1330;
  --gold:#ffb400;
  --gold-2:#ffd166;
  --gold-3:#e09b00;
  --cyan:#5fe3d8;
  --bg:#f5f7fc;
  --bg-2:#eceff9;
  --card:#ffffff;
  --text:#1b2038;
  --muted:#5c6382;
  --line:#e3e8f4;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow-sm:0 2px 12px rgba(26,31,61,.06);
  --shadow:0 14px 36px rgba(26,31,61,.10);
  --shadow-lg:0 26px 64px rgba(26,31,61,.18);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(19,23,46,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;gap:18px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold) 45%,#ff8a00);
  color:#1a1f3d;font-weight:900;font-size:18px;
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(255,180,0,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{color:#fff;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand-sub{color:rgba(255,255,255,.45);font-size:11px;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
  color:rgba(255,255,255,.74);font-size:15px;font-weight:500;
  padding:9px 14px;border-radius:10px;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{color:var(--gold);background:rgba(255,180,0,.13);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;gap:2px;padding:3px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1)}
.lang-switch button{
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  color:rgba(255,255,255,.6);letter-spacing:.5px;transition:.2s;
}
.lang-switch button.is-active{background:var(--gold);color:#1a1f3d;font-weight:700}
.lang-switch button:hover{color:#fff}
.lang-switch button.is-active:hover{color:#1a1f3d}
.nav-cta{
  padding:9px 20px;border-radius:10px;font-size:14.5px;font-weight:700;
  color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 22px rgba(255,180,0,.28);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,180,0,.38)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  background:rgba(255,255,255,.09);color:#fff;font-size:19px;
  align-items:center;justify-content:center;
}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 30px;border-radius:12px;font-weight:700;font-size:15.5px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn--gold{
  color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold) 60%,#ff9f00);
  box-shadow:0 12px 30px rgba(255,180,0,.32);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,180,0,.42)}
.btn--ghost{color:#fff;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.05)}
.btn--ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.btn--dark{color:#fff;background:var(--ink);box-shadow:var(--shadow-sm)}
.btn--dark:hover{background:var(--ink-2);transform:translateY(-2px)}
/* ---------- sections ---------- */
.section{padding:84px 0}
.section--alt{background:var(--bg-2)}
.section--dark{background:linear-gradient(160deg,#1a1f3d,#111633 70%,#0d1128);color:#fff}
.section--tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:42px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.8px;
  color:var(--gold-3);margin-bottom:12px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--gold);display:inline-block}
.section--dark .eyebrow{color:var(--gold-2)}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:900;color:var(--ink);margin:0 0 14px}
.section--dark .section-head h2{color:#fff}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.section--dark .section-head p{color:rgba(255,255,255,.7)}
/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;color:#fff;background:#0f1330}
.article-hero__bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.42;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,19,48,.5) 0%,rgba(15,19,48,.84) 58%,#0f1330 100%);
}
.article-hero__inner{position:relative;z-index:2;padding:58px 0 72px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:26px}
.crumbs a{color:rgba(255,255,255,.82)}
.crumbs a:hover{color:var(--gold-2)}
.crumbs span.sep{color:rgba(255,255,255,.32)}
.crumbs span.now{color:rgba(255,255,255,.6);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;font-size:13px;font-weight:700;
  color:var(--gold-2);background:rgba(255,180,0,.13);
  border:1px solid rgba(255,180,0,.34);margin-bottom:20px;
}
.article-hero h1{
  font-size:clamp(27px,4vw,45px);line-height:1.28;font-weight:900;
  letter-spacing:-.5px;margin:0 0 24px;max-width:940px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14px;color:rgba(255,255,255,.68)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta b{color:var(--gold-2);font-weight:700}
/* ---------- article body ---------- */
.article-body{padding:70px 0 30px;background:var(--bg)}
.article-main{max-width:880px;margin:0 auto}
.summary-card{
  background:linear-gradient(135deg,#ffffff,#f7f9ff);
  border:1px solid var(--line);border-left:5px solid var(--gold);
  border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow-sm);
  margin-bottom:40px;
}
.summary-card h2{
  margin:0 0 10px;font-size:15px;letter-spacing:2px;font-weight:800;
  color:var(--gold-3);text-transform:uppercase;
}
.summary-card p{margin:0;color:var(--muted);font-size:15.5px;line-height:1.95}
.prose{font-size:16.5px;line-height:1.95;color:#2a3050}
.prose h2{
  font-size:clamp(21px,2.4vw,26px);line-height:1.45;font-weight:900;color:var(--ink);
  margin:44px 0 16px;padding-left:16px;border-left:5px solid var(--gold);
}
.prose h3{font-size:19px;line-height:1.5;font-weight:800;color:var(--ink);margin:32px 0 12px}
.prose h4{font-size:16.5px;font-weight:800;color:var(--ink-2);margin:24px 0 10px}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{padding-left:22px;margin:0 0 20px}
.prose li{margin-bottom:10px}
.prose li::marker{color:var(--gold-3)}
.prose img{border-radius:var(--radius);margin:26px 0;box-shadow:var(--shadow-sm)}
.prose blockquote{
  margin:28px 0;padding:20px 26px;background:#fff;
  border-left:5px solid var(--gold);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);color:var(--ink);font-weight:600;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;background:#fff;border-radius:var(--radius-sm);overflow:hidden}
.prose th,.prose td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.prose th{background:var(--bg-2);font-weight:800;color:var(--ink)}
.prose a{color:var(--gold-3);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--ink)}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state h2{margin:0 0 12px;font-size:22px;font-weight:900;color:var(--ink)}
.empty-state p{margin:0 0 24px;color:var(--muted)}
.article-foot{
  margin-top:44px;padding:20px 24px;border-radius:var(--radius-sm);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
  display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13.5px;color:var(--muted);
}
.article-foot b{color:var(--ink);font-weight:700}
/* ---------- point cards ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.point-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.point-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.4)}
.point-card .idx{
  display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,rgba(255,209,102,.28),rgba(255,180,0,.16));
  color:var(--gold-3);font-weight:900;font-size:16px;margin-bottom:16px;
}
.point-card h3{margin:0 0 10px;font-size:18px;font-weight:800;color:var(--ink)}
.point-card p{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted)}
/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.matrix-item{
  background:#fff;border:1px solid var(--line);border-left:4px solid rgba(255,180,0,.75);
  border-radius:var(--radius-sm);padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.matrix-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.matrix-item strong{display:block;color:var(--ink);font-size:16px;font-weight:800;margin-bottom:6px}
.matrix-item span{font-size:13.5px;color:var(--muted);line-height:1.7}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 26px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow);border-color:rgba(255,180,0,.4)}
.faq-item h3{
  margin:0 0 9px;font-size:17px;font-weight:800;color:var(--ink);
  display:flex;gap:11px;align-items:flex-start;line-height:1.6;
}
.faq-item h3 i{
  flex-shrink:0;width:9px;height:9px;border-radius:50%;
  background:var(--gold);margin-top:9px;
}
.faq-item p{margin:0 0 0 20px;color:var(--muted);font-size:15px;line-height:1.85}
/* ---------- subscribe ---------- */
.subscribe{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.subscribe h2{font-size:clamp(24px,3vw,32px);font-weight:900;line-height:1.35;margin:0 0 14px;color:#fff}
.subscribe p{color:rgba(255,255,255,.72);margin:0 0 8px;font-size:15.5px;line-height:1.9}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{
  flex:1;min-width:210px;padding:14px 18px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);
  color:#fff;font-size:15px;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.45)}
.subscribe-form input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,180,0,.2)}
.subscribe-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:14px}
.subscribe-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.subscribe-tags span{
  padding:6px 14px;border-radius:999px;font-size:13px;
  color:rgba(255,255,255,.8);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
}
/* ---------- footer ---------- */
.site-footer{background:#11152e;color:rgba(255,255,255,.7);padding:62px 0 26px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand p{margin:16px 0 0;font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.56);max-width:420px}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:800;color:#fff;letter-spacing:.5px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:var(--gold-2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.44);
}
/* ---------- responsive ---------- */
@media (max-width:1080px){
  .matrix-grid{grid-template-columns:repeat(3,1fr)}
  .subscribe{grid-template-columns:1fr;gap:28px}
}
@media (max-width:980px){
  .nav-links{
    position:absolute;top:72px;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(16,20,44,.98);
    padding:14px 18px 18px;border-top:1px solid rgba(255,255,255,.08);
    border-radius:0 0 18px 18px;box-shadow:var(--shadow-lg);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15.5px}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .point-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
}
@media (max-width:760px){
  .matrix-grid{grid-template-columns:1fr 1fr}
  .article-hero__inner{padding:44px 0 56px}
  .article-body{padding:48px 0 20px}
  .summary-card{padding:22px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .brand-sub{display:none}
  .nav{height:66px;gap:10px}
  .point-grid{grid-template-columns:1fr}
  .matrix-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .article-hero h1{font-size:25px}
  .section{padding:52px 0}
  .btn{padding:12px 22px;font-size:15px}
  .subscribe-form input{min-width:100%}
  .subscribe-form .btn{width:100%}
}

/* roulang page: category1 */
:root{
 --ink:#1a1f3d;
 --ink-2:#232a52;
 --ink-3:#0f1330;
 --gold:#ffb400;
 --gold-2:#ffd166;
 --gold-3:#e09b00;
 --cyan:#5fe3d8;
 --bg:#f5f7fc;
 --bg-2:#eceff9;
 --card:#ffffff;
 --text:#1b2038;
 --muted:#5c6382;
 --line:#e3e8f4;
 --radius:16px;
 --radius-sm:12px;
 --radius-lg:26px;
 --shadow-sm:0 2px 12px rgba(26,31,61,.06);
 --shadow:0 14px 36px rgba(26,31,61,.10);
 --shadow-lg:0 26px 64px rgba(26,31,61,.18);
 --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 color:var(--text);
 background:var(--bg);
 line-height:1.75;
 font-size:16px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(255,180,0,.65);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(19,23,46,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;gap:18px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:40px;height:40px;border-radius:13px;
 background:linear-gradient(135deg,var(--gold-2),var(--gold) 45%,#ff8a00);
 color:#1a1f3d;font-weight:900;font-size:18px;
 display:grid;place-items:center;
 box-shadow:0 8px 20px rgba(255,180,0,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{color:#fff;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand-sub{color:rgba(255,255,255,.45);font-size:11px;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
 color:rgba(255,255,255,.74);font-size:15px;font-weight:500;
 padding:9px 14px;border-radius:10px;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{color:var(--gold);background:rgba(255,180,0,.13);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;gap:2px;padding:3px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12)}
.lang-switch button{
 padding:5px 12px;border-radius:999px;font-size:12.5px;
 color:rgba(255,255,255,.6);letter-spacing:.5px;transition:.2s;
}
.lang-switch button.is-active{background:var(--gold);color:#1a1f3d;font-weight:700}
.lang-switch button:hover{color:#fff}
.lang-switch button.is-active:hover{color:#1a1f3d}
.nav-cta{
 padding:9px 20px;border-radius:10px;font-size:14.5px;font-weight:700;
 color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold));
 box-shadow:0 8px 22px rgba(255,180,0,.28);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,180,0,.38)}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;
 background:rgba(255,255,255,.09);color:#fff;font-size:19px;
 align-items:center;justify-content:center;
}

/* ---------- hero（卡片堆叠首屏） ---------- */
.hero{
 position:relative;overflow:hidden;color:#fff;
 background:radial-gradient(1100px 620px at 10% -14%,#2c3468 0%,#1a1f3d 52%,#0e1229 100%);
 padding:58px 0 86px;
}
.hero::before{
 content:"";position:absolute;inset:0;
 background-image:url(/assets/images/backpic/back-2.webp);
 background-size:cover;background-position:center;
 opacity:.15;mix-blend-mode:screen;
}
.hero::after{
 content:"";position:absolute;right:-160px;bottom:-180px;width:520px;height:520px;
 background:radial-gradient(circle,rgba(255,180,0,.20),transparent 68%);
 filter:blur(18px);pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.5);margin-bottom:26px}
.crumb a:hover{color:var(--gold-2)}
.crumb span{color:rgba(255,255,255,.28)}
.hero-grid{display:grid;grid-template-columns:1.32fr .78fr;gap:24px;align-items:start}
.hero-main{
 background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.035));
 border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius-lg);
 padding:40px 38px 36px;
 box-shadow:0 26px 64px rgba(8,11,28,.45);
 backdrop-filter:blur(6px);
}
.hero-tag{
 display:inline-flex;align-items:center;gap:9px;
 padding:6px 15px;border-radius:999px;font-size:13px;
 color:var(--gold-2);background:rgba(255,180,0,.12);
 border:1px solid rgba(255,180,0,.3);margin-bottom:20px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--gold);display:inline-block}
.hero h1{
 font-size:40px;line-height:1.28;font-weight:900;letter-spacing:-.4px;margin:0 0 18px;
}
.hero h1 em{
 font-style:normal;
 background:linear-gradient(100deg,var(--gold-2),var(--gold) 55%,#ff8a00);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{color:rgba(255,255,255,.78);font-size:16px;line-height:1.95;margin:0;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 28px;border-radius:12px;font-weight:700;font-size:15.5px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn--gold{
 color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold) 60%,#ff9f00);
 box-shadow:0 12px 30px rgba(255,180,0,.32);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,180,0,.42)}
.btn--ghost{color:#fff;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.05)}
.btn--ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.hero-side{display:flex;flex-direction:column;gap:20px}
.side-card{
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.13);
 border-radius:var(--radius);
 padding:22px 22px 20px;
}
.side-card:nth-child(2){margin-left:26px}
.side-card h3{font-size:14px;letter-spacing:1px;color:var(--gold-2);margin:0 0 14px;font-weight:800}
.mini-flow{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.mini-flow li{display:flex;align-items:center;gap:11px;font-size:14px;color:rgba(255,255,255,.8)}
.mini-flow b{
 width:24px;height:24px;flex-shrink:0;border-radius:8px;
 background:rgba(255,180,0,.16);color:var(--gold-2);
 font-size:12px;display:grid;place-items:center;font-weight:800;
}
.side-figure{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.13)}
.side-figure img{width:100%;height:150px;object-fit:cover;opacity:.92}
.side-figure figcaption{
 padding:14px 18px;background:rgba(255,255,255,.07);
 font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.7;
}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section--tight{padding:60px 0}
.section--alt{background:var(--bg-2)}
.section--dark{
 background:linear-gradient(160deg,#1a1f3d,#121736 68%,#0d1128);
 color:#fff;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:2px;text-transform:uppercase;
 color:var(--gold-3);margin-bottom:12px;
}
.section--dark .eyebrow{color:var(--gold-2)}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:currentColor;display:inline-block}
.section-head h2{font-size:32px;line-height:1.35;font-weight:900;letter-spacing:-.3px;margin:0 0 14px;color:var(--ink)}
.section--dark .section-head h2{color:#fff}
.section-head p{margin:0;color:var(--muted);font-size:15.5px;line-height:1.95}
.section--dark .section-head p{color:rgba(255,255,255,.72)}
.grid{display:grid;gap:22px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);padding:26px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.45)}
.card h3{font-size:18.5px;font-weight:800;margin:0 0 10px;color:var(--ink);line-height:1.5}
.card p{margin:0;color:var(--muted);font-size:14.8px;line-height:1.9}
.card-num{
 width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
 background:linear-gradient(135deg,rgba(255,180,0,.22),rgba(255,180,0,.06));
 color:var(--gold-3);font-weight:900;font-size:15px;margin-bottom:16px;
 border:1px solid rgba(255,180,0,.28);
}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:rgba(26,31,61,.06);color:var(--ink-2);border:1px solid var(--line);
}
.tag--gold{background:rgba(255,180,0,.14);color:#8a6100;border-color:rgba(255,180,0,.35)}
.tag--cyan{background:rgba(95,227,216,.16);color:#0e6d66;border-color:rgba(95,227,216,.4)}

/* 番型速查 */
.tier-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tier{
 position:relative;background:var(--card);border:1px solid var(--line);
 border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease;
}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tier img{width:100%;height:138px;object-fit:cover}
.tier-body{padding:20px 22px 24px}
.tier-body h3{font-size:18px;font-weight:800;margin:12px 0 8px;color:var(--ink)}
.tier-body p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.85}
.tier-fan{
 position:absolute;top:14px;right:14px;
 padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:800;
 color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold));
 box-shadow:0 6px 16px rgba(255,180,0,.35);
}

/* 流程时间线 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.flow-item{position:relative;padding-top:26px}
.flow-item::before{
 content:"";position:absolute;top:6px;left:0;right:0;height:3px;border-radius:3px;
 background:linear-gradient(90deg,rgba(255,180,0,.85),rgba(255,180,0,.12));
}
.flow-item h3{font-size:16.5px;font-weight:800;color:var(--ink);margin:0 0 8px}
.flow-item p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.85}
.flow-item b{display:block;font-size:12.5px;letter-spacing:2px;color:var(--gold-3);margin-bottom:6px}

/* 对照差异 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--card)}
.compare-col{padding:30px 30px 34px}
.compare-col+.compare-col{border-left:1px solid var(--line);background:#fbfcff}
.compare-col h3{font-size:17px;font-weight:800;margin:0 0 6px;color:var(--ink)}
.compare-col>span{font-size:13px;color:var(--muted)}
.compare-col ul{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
.compare-col li{position:relative;padding-left:24px;font-size:14.8px;color:var(--text);line-height:1.8}
.compare-col li::before{
 content:"胡";position:absolute;left:0;top:2px;
 width:17px;height:17px;border-radius:5px;font-size:10px;font-weight:800;
 display:grid;place-items:center;color:#1a1f3d;
 background:linear-gradient(135deg,var(--gold-2),var(--gold));
}
.compare-col--alt li::before{content:"碰";background:rgba(26,31,61,.09);color:var(--ink-2)}

/* 数据徽章 */
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{
 padding:24px 22px;border-radius:var(--radius);
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);
}
.metric b{display:block;font-size:30px;font-weight:900;line-height:1.2;color:var(--gold-2);letter-spacing:-.5px}
.metric span{display:block;font-size:13.5px;color:rgba(255,255,255,.66);margin-top:6px;line-height:1.7}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
 display:flex;flex-direction:column;
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.45)}
.news-card img{width:100%;height:156px;object-fit:cover}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.news-body h3{font-size:17px;font-weight:800;line-height:1.55;margin:0;color:var(--ink)}
.news-card:hover h3{color:var(--gold-3)}
.news-body p{margin:0;font-size:14.4px;color:var(--muted);line-height:1.85;flex:1}
.news-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--gold-3)}
.empty-note{
 padding:36px 28px;border-radius:var(--radius);text-align:center;
 background:var(--card);border:1px dashed var(--line);color:var(--muted);font-size:15px;
}

/* FAQ */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq details{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:18px 22px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:rgba(255,180,0,.5);box-shadow:var(--shadow)}
.faq summary{
 list-style:none;cursor:pointer;font-weight:800;font-size:16.5px;color:var(--ink);
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--gold-3);
 transition:transform .2s ease;line-height:1;
}
.faq details[open] summary::after{content:"−"}
.faq p{margin:14px 0 0;color:var(--muted);font-size:14.8px;line-height:1.95}

/* 订阅 CTA */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-lg);
 background:linear-gradient(120deg,#ffd166,#ffb400 52%,#ff9500);
 padding:46px 44px;box-shadow:0 24px 56px rgba(255,180,0,.32);
 color:#231a00;
}
.cta-band::after{
 content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
 background:rgba(255,255,255,.22);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.cta-band h2{font-size:28px;font-weight:900;margin:0 0 10px;line-height:1.4;color:#221a00}
.cta-band p{margin:0;font-size:15px;line-height:1.9;color:rgba(34,26,0,.78);max-width:520px}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input[type="email"]{
 flex:1 1 220px;min-width:0;
 padding:13px 16px;border-radius:12px;border:1px solid rgba(34,26,0,.16);
 background:rgba(255,255,255,.92);color:#1b2038;font-size:14.5px;
}
.subscribe-form input[type="email"]::placeholder{color:#8a8f9f}
.subscribe-form input[type="email"]:focus{outline:none;border-color:#1a1f3d;box-shadow:0 0 0 3px rgba(26,31,61,.16)}
.btn--ink{
 color:#fff;background:var(--ink);box-shadow:0 12px 28px rgba(26,31,61,.28);
}
.btn--ink:hover{background:var(--ink-2);transform:translateY(-2px)}
.form-note{width:100%;font-size:12.5px;color:rgba(34,26,0,.66);margin-top:4px}

/* 底部固定转化条 */
.sticky-bar{
 position:fixed;left:0;right:0;bottom:0;z-index:70;
 background:rgba(15,19,48,.96);
 border-top:1px solid rgba(255,180,0,.28);
 backdrop-filter:blur(10px);
 -webkit-backdrop-filter:blur(10px);
 padding:12px 0;
}
.sticky-bar .container{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:space-between}
.sticky-bar strong{color:#fff;font-size:15px;font-weight:800}
.sticky-bar span{color:rgba(255,255,255,.6);font-size:13px;margin-left:10px}
.sticky-bar .btn{padding:10px 22px;font-size:14px}

/* footer */
.site-footer{background:#111633;color:rgba(255,255,255,.7);padding:66px 0 30px;font-size:14.5px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand p{margin:16px 0 0;color:rgba(255,255,255,.55);line-height:1.9;font-size:14px;max-width:420px}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin:0 0 16px;letter-spacing:.5px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{color:rgba(255,255,255,.62);font-size:14px}
.footer-col a:hover{color:var(--gold-2)}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
 padding-top:24px;font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr}
 .hero-side{flex-direction:row;flex-wrap:wrap}
 .hero-side .side-card{flex:1 1 260px}
 .side-card:nth-child(2){margin-left:0}
 .hero h1{font-size:34px}
 .grid--3,.grid--4,.tier-list,.news-grid{grid-template-columns:repeat(2,1fr)}
 .flow{grid-template-columns:repeat(2,1fr);gap:26px}
 .metric-row{grid-template-columns:repeat(2,1fr)}
 .cta-inner{grid-template-columns:1fr}
 .footer-top{grid-template-columns:1fr 1fr}
 .nav-links{margin-left:6px}
 .nav-links a{padding:9px 10px;font-size:14px}
}
@media (max-width:860px){
 .nav-toggle{display:flex}
 .nav-links{
  position:absolute;top:72px;left:-24px;right:-24px;
  flex-direction:column;align-items:stretch;gap:2px;margin:0;
  background:rgba(17,22,51,.99);
  border-bottom:1px solid rgba(255,255,255,.1);
  padding:12px 24px 18px;
  display:none;
 }
 .nav-links.is-open{display:flex}
 .nav-links a{padding:12px 14px;font-size:15px}
 .nav-cta{display:none}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .hero{padding:40px 0 66px}
 .hero-main{padding:28px 22px 26px;border-radius:var(--radius)}
 .hero h1{font-size:28px}
 .hero-desc{font-size:15px}
 .btn{padding:12px 22px;font-size:14.5px}
 .section{padding:60px 0}
 .section--tight{padding:44px 0}
 .section-head h2{font-size:25px}
 .grid--3,.grid--4,.grid--2,.tier-list,.news-grid,.flow,.metric-row{grid-template-columns:1fr}
 .compare{grid-template-columns:1fr}
 .compare-col+.compare-col{border-left:0;border-top:1px solid var(--line)}
 .cta-band{padding:32px 22px;border-radius:var(--radius)}
 .cta-band h2{font-size:22px}
 .footer-top{grid-template-columns:1fr;gap:28px}
 .sticky-bar span{display:none}
 body{padding-bottom:66px}
}
@media (max-width:520px){
 .brand-name{font-size:16px}
 .brand-sub{font-size:10px;letter-spacing:1.4px}
 .lang-switch{display:none}
 .hero h1{font-size:25px}
 .section-head h2{font-size:22px}
 .sticky-bar .container{gap:10px}
 .sticky-bar strong{font-size:14px}
}

/* roulang page: category3 */
:root{
 --ink:#1a1f3d;
 --ink-2:#232a52;
 --ink-3:#0f1330;
 --gold:#ffb400;
 --gold-2:#ffd166;
 --gold-3:#e09b00;
 --cyan:#5fe3d8;
 --bg:#f5f7fc;
 --bg-2:#eceff9;
 --card:#ffffff;
 --text:#1b2038;
 --muted:#5c6382;
 --line:#e3e8f4;
 --radius:16px;
 --radius-sm:12px;
 --radius-lg:26px;
 --shadow-sm:0 2px 12px rgba(26,31,61,.06);
 --shadow:0 14px 36px rgba(26,31,61,.10);
 --shadow-lg:0 26px 64px rgba(26,31,61,.18);
 --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 color:var(--text);
 background:var(--bg);
 line-height:1.75;
 font-size:16px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.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 ---------- */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(19,23,46,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;gap:18px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:40px;height:40px;border-radius:13px;
 background:linear-gradient(135deg,var(--gold-2),var(--gold) 45%,#ff8a00);
 color:#1a1f3d;font-weight:900;font-size:18px;
 display:grid;place-items:center;
 box-shadow:0 8px 20px rgba(255,180,0,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{color:#fff;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand-sub{color:rgba(255,255,255,.45);font-size:11px;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
 color:rgba(255,255,255,.74);font-size:15px;font-weight:500;
 padding:9px 14px;border-radius:10px;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{color:var(--gold);background:rgba(255,180,0,.13);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;gap:2px;padding:3px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1)}
.lang-switch button{
 padding:5px 12px;border-radius:999px;font-size:12.5px;
 color:rgba(255,255,255,.6);letter-spacing:.5px;transition:.2s;
}
.lang-switch button.is-active{background:var(--gold);color:#1a1f3d;font-weight:700}
.lang-switch button:hover{color:#fff}
.lang-switch button.is-active:hover{color:#1a1f3d}
.nav-cta{
 display:inline-flex;align-items:center;
 padding:9px 20px;border-radius:10px;font-size:14.5px;font-weight:700;
 color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold));
 box-shadow:0 8px 22px rgba(255,180,0,.28);white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,180,0,.38)}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;
 background:rgba(255,255,255,.09);color:#fff;font-size:19px;
 align-items:center;justify-content:center;
}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 30px;border-radius:12px;font-weight:700;font-size:15.5px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn--gold{
 color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold) 60%,#ff9f00);
 box-shadow:0 12px 30px rgba(255,180,0,.32);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,180,0,.42)}
.btn--ghost{color:#fff;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.05)}
.btn--ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.btn--dark{color:#fff;background:var(--ink);box-shadow:var(--shadow-sm)}
.btn--dark:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn--sm{padding:10px 20px;font-size:14px;border-radius:10px}
/* ---------- category hero ---------- */
.cat-hero{
 position:relative;overflow:hidden;color:#fff;
 background:linear-gradient(140deg,#242b57 0%,#1a1f3d 46%,#0d1128 100%);
 padding:66px 0 78px;
}
.cat-hero::before{
 content:"";position:absolute;inset:0;
 background-image:url(/assets/images/backpic/back-3.webp);
 background-size:cover;background-position:center;
 opacity:.17;mix-blend-mode:screen;
}
.cat-hero::after{
 content:"";position:absolute;right:-160px;bottom:-200px;width:560px;height:560px;
 background:radial-gradient(circle,rgba(255,180,0,.2),transparent 68%);
 filter:blur(24px);pointer-events:none;
}
.cat-hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.48);margin-bottom:18px}
.crumb a:hover{color:var(--gold-2)}
.crumb span{color:rgba(255,255,255,.3)}
.cat-hero h1{
 font-size:44px;line-height:1.22;font-weight:900;letter-spacing:-.6px;margin:0 0 18px;
}
.cat-hero h1 em{
 font-style:normal;
 background:linear-gradient(100deg,var(--gold-2),var(--gold) 55%,#ff8a00);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero p.lead{color:rgba(255,255,255,.78);font-size:16.5px;line-height:1.95;max-width:600px;margin:0}
.kv-bar{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 0}
.kv-pill{
 display:inline-flex;align-items:center;gap:8px;
 padding:8px 15px;border-radius:999px;font-size:13px;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
 color:rgba(255,255,255,.82);
}
.kv-pill b{color:var(--gold-2);font-weight:800}
.kv-pill .dot{width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 3px rgba(74,222,128,.16)}
.countdown{
 display:flex;flex-wrap:wrap;align-items:center;gap:14px;
 margin-top:22px;padding:12px 18px;border-radius:14px;
 background:linear-gradient(100deg,rgba(255,180,0,.16),rgba(255,180,0,.04));
 border:1px solid rgba(255,180,0,.3);
}
.countdown .cd-label{font-size:13px;color:rgba(255,255,255,.72)}
.countdown .cd-time{
 font-family:"SFMono-Regular",Consolas,Menlo,monospace;
 font-size:19px;font-weight:800;color:var(--gold-2);letter-spacing:1.5px;
}
.countdown .cd-note{font-size:12.5px;color:rgba(255,255,255,.46);margin-left:auto}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.device-card{
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.15);
 border-radius:var(--radius-lg);
 padding:16px;
 backdrop-filter:blur(10px);
 -webkit-backdrop-filter:blur(10px);
 box-shadow:0 30px 70px rgba(0,0,0,.32);
}
.device-card img{border-radius:16px;width:100%;height:210px;object-fit:cover}
.device-card .metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.metric{
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
 border-radius:12px;padding:10px 12px;text-align:center;
}
.metric b{display:block;color:var(--gold-2);font-size:17px;font-weight:800;line-height:1.3}
.metric span{font-size:11.5px;color:rgba(255,255,255,.55);letter-spacing:.3px}
/* ---------- section base ---------- */
.section{padding:80px 0}
.section--alt{background:var(--bg-2)}
.section--dark{background:linear-gradient(160deg,#1a1f3d,#121735 68%,#0d1128);color:#fff;position:relative;overflow:hidden}
.section--dark::before{
 content:"";position:absolute;inset:0;
 background-image:url(/assets/images/backpic/back-6.webp);
 background-size:cover;background-position:center;opacity:.1;mix-blend-mode:screen;
}
.section--dark > .container{position:relative;z-index:2}
.section--tight{padding:56px 0}
.section-head{max-width:740px;margin-bottom:42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:2px;
 color:var(--gold-3);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold);display:inline-block}
.section--dark .eyebrow{color:var(--gold-2)}
.section-title{font-size:32px;line-height:1.38;font-weight:900;letter-spacing:-.4px;margin:0 0 14px}
.section-desc{color:var(--muted);font-size:15.5px;margin:0}
.section--dark .section-desc{color:rgba(255,255,255,.66)}
/* ---------- platform cards ---------- */
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.platform-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 22px;box-shadow:var(--shadow-sm);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
 display:flex;flex-direction:column;
}
.platform-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.5)}
.plat-icon{
 width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
 font-weight:900;font-size:17px;color:#1a1f3d;
 background:linear-gradient(135deg,var(--gold-2),var(--gold));
 margin-bottom:16px;box-shadow:0 8px 18px rgba(255,180,0,.24);
}
.platform-card h3{font-size:18.5px;font-weight:800;margin:0 0 6px;letter-spacing:-.2px}
.plat-meta{font-size:12.5px;font-weight:800;color:var(--gold-3);letter-spacing:.6px;margin:0 0 14px}
.platform-card ul{list-style:none;padding:0;margin:0 0 16px}
.platform-card li{position:relative;padding-left:17px;font-size:14px;color:var(--muted);margin-bottom:8px;line-height:1.7}
.platform-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.plat-hash{
 margin-top:auto;font-family:"SFMono-Regular",Consolas,Menlo,monospace;
 font-size:11.5px;color:#8b93b2;background:var(--bg-2);
 border-radius:9px;padding:8px 10px;word-break:break-all;line-height:1.6;
}
/* ---------- timeline ---------- */
.tl-wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.timeline{position:relative;padding-left:30px;margin:0}
.timeline::before{
 content:"";position:absolute;left:6px;top:8px;bottom:10px;width:2px;
 background:linear-gradient(180deg,var(--gold),rgba(255,180,0,.15));
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
 content:"";position:absolute;left:-30px;top:7px;width:14px;height:14px;border-radius:50%;
 background:#fff;border:3px solid var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.12);
}
.tl-ver{display:inline-flex;align-items:center;gap:10px;margin-bottom:6px}
.tl-ver b{font-size:16px;font-weight:900;color:var(--ink)}
.tl-ver .tag{
 font-size:11.5px;font-weight:800;padding:2px 10px;border-radius:999px;
 color:var(--gold-3);background:rgba(255,180,0,.14);letter-spacing:.5px;
}
.tl-item p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.85}
.log-panel{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:28px;box-shadow:var(--shadow-sm);
}
.log-panel h3{font-size:19px;font-weight:800;margin:0 0 10px}
.log-panel p{font-size:14.5px;color:var(--muted);margin:0 0 18px}
.log-panel img{border-radius:14px;height:170px;object-fit:cover;width:100%;margin-bottom:18px}
.log-list{list-style:none;padding:0;margin:0}
.log-list li{
 display:flex;justify-content:space-between;gap:14px;
 padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.log-list li:last-child{border-bottom:0}
.log-list span:first-child{color:var(--muted)}
.log-list span:last-child{color:var(--ink);font-weight:700}
/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{
 position:relative;background:var(--card);border:1px solid var(--line);
 border-radius:var(--radius);padding:30px 22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-num{
 position:absolute;top:-18px;left:22px;
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 font-weight:900;font-size:15px;color:#1a1f3d;
 background:linear-gradient(135deg,var(--gold-2),var(--gold));
 box-shadow:0 10px 22px rgba(255,180,0,.3);
}
.step-card h3{font-size:16.5px;font-weight:800;margin:8px 0 8px}
.step-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}
/* ---------- spec list ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.spec-row{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:16px 20px;background:var(--card);border:1px solid var(--line);
 border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,transform .2s ease;
}
.spec-row:hover{border-color:rgba(255,180,0,.55);transform:translateX(3px)}
.spec-row .k{font-size:14.5px;color:var(--muted)}
.spec-row .v{font-size:14.5px;font-weight:800;color:var(--ink);text-align:right}
/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.matrix-card{
 display:flex;flex-direction:column;gap:10px;
 padding:30px 26px;border-radius:var(--radius-lg);
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.14);
 transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.matrix-card:hover{
 transform:translateY(-5px);
 background:rgba(255,255,255,.1);
 border-color:rgba(255,180,0,.55);
 box-shadow:0 22px 48px rgba(0,0,0,.3);
}
.matrix-card .m-tag{
 align-self:flex-start;font-size:11.5px;font-weight:800;letter-spacing:1px;
 padding:3px 11px;border-radius:999px;color:var(--gold-2);
 background:rgba(255,180,0,.15);border:1px solid rgba(255,180,0,.3);
}
.matrix-card h3{font-size:20px;font-weight:900;margin:0;color:#fff;letter-spacing:-.2px}
.matrix-card p{font-size:14px;color:rgba(255,255,255,.62);margin:0;line-height:1.8}
.matrix-card .m-go{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:800;color:var(--gold-2);margin-top:4px}
.matrix-card.current{border-color:rgba(255,180,0,.55);background:rgba(255,180,0,.1)}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:var(--card);border:1px solid var(--line);border-left:3px solid var(--gold);
 border-radius:var(--radius-sm);padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-left-color:var(--gold-3)}
.news-card .n-cat{
 align-self:flex-start;font-size:11.5px;font-weight:800;letter-spacing:.6px;
 color:var(--gold-3);background:rgba(255,180,0,.13);padding:3px 10px;border-radius:999px;
}
.news-card h3{font-size:16.5px;font-weight:800;line-height:1.6;margin:0;color:var(--ink)}
.news-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}
.news-card time{font-size:12.5px;color:#98a0bb;margin-top:auto}
.news-empty{
 padding:26px;border-radius:var(--radius-sm);background:var(--card);
 border:1px dashed var(--line);color:var(--muted);font-size:14.5px;text-align:center;
}
.news-more{display:flex;justify-content:center;margin-top:36px}
/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
 margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
 transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.5)}
.faq-item summary{
 position:relative;list-style:none;cursor:pointer;
 padding:18px 52px 18px 22px;font-size:15.5px;font-weight:800;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
 font-size:20px;font-weight:700;color:var(--gold-3);line-height:1;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.9;margin:0}
/* ---------- subscribe ---------- */
.subscribe-card{
 position:relative;overflow:hidden;
 border-radius:var(--radius-lg);padding:52px 46px;
 background:linear-gradient(125deg,#232a52,#1a1f3d 52%,#111633);
 border:1px solid rgba(255,255,255,.12);
 box-shadow:var(--shadow-lg);
 display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
}
.subscribe-card::after{
 content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;
 background:radial-gradient(circle,rgba(255,180,0,.22),transparent 68%);filter:blur(18px);
}
.subscribe-card h2{font-size:29px;font-weight:900;color:#fff;margin:0 0 14px;line-height:1.4;letter-spacing:-.3px}
.subscribe-card p{font-size:15px;color:rgba(255,255,255,.7);margin:0;line-height:1.9}
.subscribe-side{position:relative;z-index:2}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{
 flex:1 1 220px;min-width:0;
 padding:13px 16px;border-radius:12px;
 background:rgba(255,255,255,.08);
 border:1px solid rgba(255,255,255,.18);
 color:#fff;font-size:14.5px;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.42)}
.subscribe-form input:focus{outline:none;border-color:var(--gold);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(255,180,0,.18)}
.form-hint{font-size:13px;color:rgba(255,255,255,.52);margin:12px 0 0;line-height:1.8}
.form-hint.is-ok{color:var(--gold-2)}
/* ---------- mobile bar ---------- */
.mobile-bar{display:none}
/* ---------- footer ---------- */
.site-footer{background:#111532;color:rgba(255,255,255,.7);padding:60px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.95;color:rgba(255,255,255,.5);margin:0;max-width:420px}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin:0 0 16px;letter-spacing:.5px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.58)}
.footer-col a:hover{color:var(--gold-2)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:24px;font-size:13px;color:rgba(255,255,255,.4)}
/* ---------- responsive ---------- */
@media (max-width:1100px){
 .cat-hero__inner{grid-template-columns:1fr 1fr;gap:34px}
 .cat-hero h1{font-size:38px}
 .platform-grid{grid-template-columns:repeat(2,1fr)}
 .step-grid{grid-template-columns:repeat(2,1fr);gap:26px}
 .news-grid{grid-template-columns:repeat(2,1fr)}
 .matrix-grid{grid-template-columns:1fr 1fr}
 .tl-wrap{grid-template-columns:1fr;gap:34px}
 .subscribe-card{grid-template-columns:1fr;gap:30px;padding:44px 34px}
}
@media (max-width:900px){
 .nav-links{
  display:none;position:absolute;top:72px;left:0;right:0;
  background:#131729;flex-direction:column;align-items:stretch;gap:2px;
  padding:12px 18px 18px;border-bottom:1px solid rgba(255,255,255,.1);
  box-shadow:0 22px 40px rgba(0,0,0,.4);margin-left:0;
 }
 .nav-links.is-open{display:flex}
 .nav-links a{padding:12px 14px;border-radius:10px}
 .nav-toggle{display:inline-flex}
 .lang-switch{display:none}
 .nav-cta{display:none}
 .cat-hero__inner{grid-template-columns:1fr;gap:36px}
 .section{padding:62px 0}
 .section-title{font-size:27px}
 .spec-grid{grid-template-columns:1fr}
 .footer-top{grid-template-columns:1fr 1fr;gap:32px}
 .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
 body{padding-bottom:66px}
 .mobile-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
  background:rgba(17,21,50,.96);
  backdrop-filter:blur(12px);border-top:1px solid rgba(255,255,255,.12);
 }
 .mobile-bar span{font-size:13px;color:rgba(255,255,255,.7)}
 .mobile-bar .btn{padding:10px 20px;font-size:14px;border-radius:10px}
}
@media (max-width:620px){
 .container{padding:0 18px}
 .cat-hero{padding:44px 0 56px}
 .cat-hero h1{font-size:29px;letter-spacing:-.3px}
 .cat-hero p.lead{font-size:15px}
 .hero-actions .btn{width:100%}
 .platform-grid,.matrix-grid,.news-grid{grid-template-columns:1fr}
 .step-grid{grid-template-columns:1fr}
 .countdown{padding:12px 14px;gap:10px}
 .countdown .cd-note{margin-left:0;width:100%}
 .subscribe-form{flex-direction:column}
 .subscribe-form .btn{width:100%}
 .section-title{font-size:24px}
 .subscribe-card{padding:34px 22px}
 .subscribe-card h2{font-size:23px}
 .footer-top{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;gap:6px}
 .spec-row{flex-direction:column;align-items:flex-start;gap:4px}
 .spec-row .v{text-align:left}
}

/* roulang page: category2 */
:root{
  --ink:#1a1f3d;
  --ink-2:#232a52;
  --ink-3:#0f1330;
  --gold:#ffb400;
  --gold-2:#ffd166;
  --gold-3:#e09b00;
  --cyan:#5fe3d8;
  --bg:#f5f7fc;
  --bg-2:#eceff9;
  --card:#ffffff;
  --text:#1b2038;
  --muted:#5c6382;
  --line:#e3e8f4;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow-sm:0 2px 12px rgba(26,31,61,.06);
  --shadow:0 14px 36px rgba(26,31,61,.10);
  --shadow-lg:0 26px 64px rgba(26,31,61,.18);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  padding-bottom:78px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0}
[hidden]{display:none !important}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(19,23,46,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;gap:18px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold) 45%,#ff8a00);
  color:#1a1f3d;font-weight:900;font-size:18px;
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(255,180,0,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{color:#fff;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand-sub{color:rgba(255,255,255,.45);font-size:11px;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
  color:rgba(255,255,255,.74);font-size:15px;font-weight:500;
  padding:9px 14px;border-radius:10px;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{color:var(--gold);background:rgba(255,180,0,.13);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;gap:2px;padding:3px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1)}
.lang-switch button{
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  color:rgba(255,255,255,.6);letter-spacing:.5px;transition:.2s;
}
.lang-switch button.is-active{background:var(--gold);color:#1a1f3d;font-weight:700}
.lang-switch button:hover{color:#fff}
.lang-switch button.is-active:hover{color:#1a1f3d}
.nav-cta{
  padding:9px 20px;border-radius:10px;font-size:14.5px;font-weight:700;
  color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 22px rgba(255,180,0,.28);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,180,0,.38)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  background:rgba(255,255,255,.09);color:#fff;font-size:19px;
  align-items:center;justify-content:center;
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(1000px 560px at 88% -18%,#303a72 0%,#1a1f3d 55%,#0e1229 100%);
  padding:52px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-4.webp);
  background-size:cover;background-position:center;
  opacity:.14;mix-blend-mode:screen;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;bottom:-180px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(95,227,216,.16),transparent 68%);
  filter:blur(18px);pointer-events:none;
}
.page-hero__grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:start;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.45);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.62)}
.crumb a:hover{color:var(--gold-2)}
.crumb span[aria-current]{color:rgba(255,255,255,.82)}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 15px;border-radius:999px;font-size:13px;
  color:var(--gold-2);background:rgba(255,180,0,.12);
  border:1px solid rgba(255,180,0,.3);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);display:inline-block}
.hero-title{
  font-size:clamp(28px,4.1vw,43px);line-height:1.26;font-weight:900;
  letter-spacing:-.5px;margin:18px 0 18px;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(100deg,var(--gold-2),var(--gold) 55%,#ff8a00);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:rgba(255,255,255,.79);font-size:16px;line-height:1.95;max-width:600px}
.hero-pain{
  margin-top:20px;padding:12px 18px;border-left:3px solid var(--gold);
  background:rgba(255,180,0,.08);border-radius:0 12px 12px 0;
  color:rgba(255,255,255,.86);font-size:15px;max-width:600px;
}
.hero-points{display:flex;flex-direction:column;gap:9px;margin-top:22px;max-width:600px}
.hero-points li{position:relative;padding-left:24px;font-size:14.5px;color:rgba(255,255,255,.72)}
.hero-points li::before{
  content:"";position:absolute;left:4px;top:10px;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold));
}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stat-chip{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);
  min-width:138px;
}
.stat-chip b{color:var(--gold-2);font-size:18px;font-weight:800;line-height:1.3}
.stat-chip span{font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.4px}

/* ---------- 线索表单卡 ---------- */
.lead-card{
  background:var(--card);color:var(--text);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  padding:28px 26px 24px;
  border-top:4px solid var(--gold);
  position:sticky;top:96px;
}
.lead-card__title{font-size:20px;font-weight:800;letter-spacing:-.2px}
.lead-card__desc{color:var(--muted);font-size:13.5px;margin-top:8px;line-height:1.7}
.lead-form{display:block;margin-top:6px}
.field-label{display:block;font-size:12.5px;font-weight:700;color:var(--muted);letter-spacing:.4px;margin:14px 0 6px}
.field{
  width:100%;padding:11px 14px;border-radius:11px;
  border:1px solid var(--line);background:#f7f9ff;font-size:14.5px;
  outline:none;transition:border-color .2s,box-shadow .2s,background .2s;
  appearance:none;
}
.field:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,180,0,.18);background:#fff}
.field:hover{border-color:#cfd8ec}
.lead-form .btn{margin-top:18px}
.lead-form__note{font-size:12.5px;color:#8b93b0;margin-top:10px;line-height:1.6}
.lead-form__ok{
  margin-top:14px;padding:11px 14px;border-radius:11px;
  background:rgba(95,227,216,.16);border:1px solid rgba(95,227,216,.5);
  color:#1c6c66;font-size:13.5px;line-height:1.6;
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 28px;border-radius:12px;font-weight:700;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  text-align:center;
}
.btn--gold{
  color:#1a1f3d;background:linear-gradient(135deg,var(--gold-2),var(--gold) 60%,#ff9f00);
  box-shadow:0 12px 30px rgba(255,180,0,.32);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,180,0,.42)}
.btn--ghost{color:#fff;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.05)}
.btn--ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.btn--dark{color:#fff;background:var(--ink);box-shadow:var(--shadow-sm)}
.btn--dark:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn--block{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:3px solid rgba(255,180,0,.55);outline-offset:2px;
}

/* ---------- section ---------- */
.section{padding:80px 0}
.section--alt{background:var(--bg-2)}
.section--dark{background:linear-gradient(160deg,#1a1f3d,#111633 70%,#0d1128);color:#fff}
.section--tight{padding:50px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  color:var(--gold-3);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--gold);border-radius:2px}
.section--dark .eyebrow{color:var(--gold-2)}
.sec-title{font-size:clamp(23px,2.9vw,32px);font-weight:900;letter-spacing:-.4px;line-height:1.35}
.sec-desc{color:var(--muted);max-width:740px;margin-top:12px;font-size:15.5px}
.section--dark .sec-desc{color:rgba(255,255,255,.68)}

/* ---------- 卖点：左标题右列表 ---------- */
.split{display:grid;grid-template-columns:330px 1fr;gap:48px;align-items:start}
.split__side{position:sticky;top:100px}
.pillar-list{display:flex;flex-direction:column;gap:16px}
.pillar{
  display:grid;grid-template-columns:58px 1fr;gap:18px;
  padding:22px 24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pillar:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.5)}
.pillar__num{
  font-weight:900;font-size:19px;color:var(--gold-3);
  letter-spacing:1px;line-height:1.5;
}
.pillar__title{font-size:17px;font-weight:800;margin-bottom:6px}
.pillar__text{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 拆解演示 ---------- */
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.demo-steps{display:flex;flex-direction:column;gap:16px;counter-reset:step;margin-top:26px}
.demo-step{
  position:relative;padding:18px 22px 18px 68px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
}
.demo-step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:22px;top:17px;
  width:30px;height:30px;border-radius:10px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold));
  color:#1a1f3d;font-weight:900;font-size:14px;
  display:grid;place-items:center;
}
.demo-step h3{font-size:16px;font-weight:800;margin-bottom:4px}
.demo-step p{font-size:14px;color:var(--muted);line-height:1.75}
.demo-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.demo-media img{width:100%;height:400px;object-fit:cover;transition:transform .5s ease}
.demo-media:hover img{transform:scale(1.04)}
.demo-media__cap{
  position:absolute;left:0;right:0;bottom:0;padding:44px 22px 20px;
  background:linear-gradient(transparent,rgba(15,19,48,.92));
  color:#fff;font-size:14px;line-height:1.7;
}
.demo-media__cap b{color:var(--gold-2);font-weight:700}

/* ---------- 场景网格 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:32px}
.scene-card{
  padding:24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.45)}
.scene-card .tag{
  display:inline-block;padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:700;color:#8a5c00;
  background:rgba(255,180,0,.16);border:1px solid rgba(255,180,0,.32);
  margin-bottom:12px;
}
.scene-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 社会认同 ---------- */
.proof-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;margin-top:34px}
.quote-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:24px;
  transition:background .25s ease,border-color .25s ease,transform .25s ease;
}
.quote-card:hover{background:rgba(255,255,255,.1);border-color:rgba(255,180,0,.4);transform:translateY(-2px)}
.quote-card--lead{padding:30px;display:flex;flex-direction:column;justify-content:center}
.quote-card p{color:rgba(255,255,255,.84);font-size:15.5px;line-height:1.9}
.quote-card--lead p{font-size:19px;line-height:1.85;font-weight:600;color:#fff}
.quote-meta{display:block;margin-top:14px;color:rgba(255,255,255,.45);font-size:13px;letter-spacing:.4px}
.proof-side{display:grid;grid-template-columns:1fr;gap:18px}
.proof-nums{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px;
}
.proof-num{
  padding:18px;border-radius:14px;text-align:center;
  background:rgba(255,180,0,.1);border:1px solid rgba(255,180,0,.24);
}
.proof-num b{display:block;font-size:22px;font-weight:900;color:var(--gold-2);line-height:1.3}
.proof-num span{font-size:12.5px;color:rgba(255,255,255,.6)}

/* ---------- 对比 ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1fr;
  margin-top:32px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow-sm);
}
.compare__head{
  padding:16px 22px;font-weight:800;font-size:15px;
  background:#eef1fa;color:var(--muted);letter-spacing:.5px;
}
.compare__head--good{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1a1f3d}
.compare__cell{
  padding:16px 22px;font-size:14.5px;color:var(--muted);
  border-top:1px solid var(--line);line-height:1.75;
}
.compare__cell--good{color:var(--text);font-weight:600;border-left:1px solid var(--line)}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:32px}
.news-card{
  display:flex;gap:16px;padding:14px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.45)}
.news-card__media{
  flex:0 0 118px;width:118px;height:100px;
  border-radius:11px;overflow:hidden;background:#dfe5f4;
}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-card__media img{transform:scale(1.06)}
.news-card__body{min-width:0;display:flex;flex-direction:column}
.news-tag{
  align-self:flex-start;
  display:inline-block;padding:2px 9px;border-radius:999px;
  font-size:11.5px;font-weight:700;color:#2a6f68;
  background:rgba(95,227,216,.18);border:1px solid rgba(95,227,216,.45);
  margin-bottom:7px;
}
.news-title{
  font-size:15.5px;font-weight:800;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--gold-3)}
.news-excerpt{
  font-size:13px;color:var(--muted);line-height:1.7;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-date{font-size:12px;color:#98a0bb;margin-top:auto;padding-top:8px}
.news-empty{
  margin-top:28px;padding:26px;border-radius:var(--radius);
  background:var(--card);border:1px dashed var(--line);
  color:var(--muted);font-size:14.5px;text-align:center;
}

/* ---------- FAQ ---------- */
.faq-list{margin-top:30px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:2px 22px;
  margin-bottom:12px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(255,180,0,.45)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:17px 36px 17px 0;font-weight:800;font-size:16px;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:14px;
  font-size:21px;font-weight:700;color:var(--gold-3);line-height:1;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item p{color:var(--muted);font-size:14.5px;line-height:1.85;padding:0 0 18px}

/* ---------- 保障条 ---------- */
.assure-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);
  margin-top:8px;
}
.assure-item{display:flex;gap:14px;align-items:flex-start}
.assure-dot{
  flex:0 0 36px;width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold));
  color:#1a1f3d;font-weight:900;display:grid;place-items:center;font-size:15px;
}
.assure-item h3{font-size:15.5px;font-weight:800;margin-bottom:4px}
.assure-item p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- footer ---------- */
.site-footer{
  background:#0f1330;color:rgba(255,255,255,.72);
  padding:56px 0 26px;border-top:1px solid rgba(255,255,255,.07);
}
.footer-top{display:grid;grid-template-columns:1.4fr .7fr .7fr;gap:40px}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);margin-top:16px;max-width:420px}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:14px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--gold-2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(19,23,46,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid rgba(255,255,255,.1);
  padding:12px 0;
}
.sticky-cta__inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.sticky-cta p{margin:0;color:rgba(255,255,255,.78);font-size:14px;line-height:1.6}
.sticky-cta strong{color:var(--gold-2);font-weight:800}
.sticky-cta .btn{margin-left:auto;padding:10px 24px;font-size:14px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .page-hero__grid{grid-template-columns:1fr;gap:36px}
  .lead-card{position:static;max-width:560px}
  .split{grid-template-columns:1fr;gap:28px}
  .split__side{position:static}
  .demo-grid{grid-template-columns:1fr;gap:32px}
  .demo-media img{height:320px}
  .proof-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
  body{padding-bottom:92px}
  .nav-links{
    display:none;position:absolute;top:74px;left:12px;right:12px;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:10px;
    background:#151a37;border:1px solid rgba(255,255,255,.1);
    border-radius:14px;box-shadow:0 20px 44px rgba(0,0,0,.4);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:11px 14px}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .section{padding:56px 0}
  .section--tight{padding:38px 0}
  .scene-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare__cell--good{border-left:0}
  .compare__head{display:none}
  .compare__cell{border-top:1px solid var(--line)}
  .compare__cell::before{
    content:attr(data-label);display:block;font-size:12px;font-weight:800;
    color:#9aa2bd;letter-spacing:1px;margin-bottom:4px;
  }
  .assure-strip{grid-template-columns:1fr;gap:18px;padding:22px}
  .proof-nums{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .sticky-cta__inner{gap:10px}
  .sticky-cta p{flex:1 1 100%;font-size:13px}
  .sticky-cta .btn{margin-left:0;width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero{padding:38px 0 56px}
  .hero-title{font-size:26px}
  .hero-chips{gap:8px}
  .stat-chip{flex:1 1 46%;min-width:0;padding:10px 14px}
  .lead-card{padding:22px 18px}
  .pillar{grid-template-columns:1fr;gap:6px;padding:18px}
  .pillar__num{font-size:15px}
  .demo-step{padding:16px 18px 16px 60px}
  .demo-step::before{left:16px;top:15px}
  .demo-media img{height:240px}
  .news-card{flex-direction:column}
  .news-card__media{width:100%;flex:0 0 auto;height:150px}
  .quote-card--lead p{font-size:16.5px}
  .footer-bottom{flex-direction:column;gap:6px}
}