/* roulang page: index */
:root{
  --ink:#0b1a2b;
  --ink-2:#122a41;
  --ink-3:#1b3a56;
  --brand:#12a37b;
  --brand-light:#0fbb8c;
  --brand-deep:#0c7a5c;
  --accent:#e0a02a;
  --bg:#f4f7fa;
  --bg-alt:#eaf0f6;
  --card:#ffffff;
  --text:#1b2b3c;
  --muted:#63748a;
  --line:#e0e8f0;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 28px rgba(15,37,64,.08);
  --shadow-hover:0 16px 36px rgba(15,37,64,.14);
  --space:64px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(18,163,123,.55);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,26,43,.96);
  color:#e8f1f8;
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(150deg,var(--brand-light),var(--brand-deep));
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#04231a;font-size:17px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(18,163,123,.32);
}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text strong{font-size:18px;letter-spacing:.5px;line-height:1.35}
.logo-text small{font-size:12px;color:#8fa6bd;letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04231a}
.btn-primary:hover{background:var(--brand-light);transform:translateY(-2px);box-shadow:0 10px 24px rgba(18,163,123,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:rgba(255,255,255,.08);color:#e8f1f8;border-color:rgba(255,255,255,.2)}
.btn-ghost:hover{background:rgba(255,255,255,.17)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);box-shadow:var(--shadow)}
.btn-sm{padding:8px 16px;font-size:14px}
.channel-row{border-top:1px solid rgba(255,255,255,.08)}
.channel-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:6px 0}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-block;padding:9px 16px;border-radius:10px;font-size:14.5px;color:#b9ccdd;
  white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.channel-link:hover{background:rgba(255,255,255,.08);color:#ffffff}
.channel-link.active{background:rgba(18,163,123,.18);color:#7ff0cd;font-weight:600}
.channel-link.dl{color:#ffd98a}
.channel-link.dl:hover{background:rgba(224,160,42,.16);color:#ffe6b0}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#e9f2f9;
  padding:60px 0 72px;
  background:
    radial-gradient(880px 420px at 84% 4%, rgba(18,163,123,.24), transparent 62%),
    radial-gradient(620px 360px at 8% 90%, rgba(224,160,42,.13), transparent 66%),
    linear-gradient(180deg,#0b1a2b 0%,#0e2135 100%);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:52px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13.5px;
  background:rgba(18,163,123,.15);color:#7ff0cd;border:1px solid rgba(18,163,123,.32);
  margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#2ee6ad;box-shadow:0 0 0 4px rgba(46,230,173,.18)}
.hero h1{font-size:clamp(27px,3.2vw,42px);line-height:1.32;font-weight:700;letter-spacing:.2px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#5df0bf}
.hero-lead{font-size:16.5px;line-height:1.9;color:#b7cadc;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-point{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#c8dae9;
  padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
}
.hero-point span{color:#5df0bf;font-weight:700}

.phone-card{
  width:100%;max-width:352px;margin-left:auto;
  border-radius:26px;padding:20px 18px 18px;
  background:linear-gradient(165deg,#16293e 0%,#0a172b 100%);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 28px 60px rgba(0,0,0,.42);
  display:flex;flex-direction:column;gap:12px;min-height:460px;
}
.phone-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.09)}
.phone-head strong{font-size:15px;color:#eaf4fb}
.phone-head span{font-size:11.5px;color:#7d94ab}
.phone-block{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:12px 14px}
.phone-block .k{font-size:12.5px;color:#8299b0;display:block;margin-bottom:4px}
.phone-block .v{font-size:16px;font-weight:700;color:#eaf4fb;letter-spacing:.3px}
.phone-block .v.teal{color:#5df0bf}
.phone-block .v.gold{color:#f2c568}
.gear-row{display:flex;gap:8px;flex-wrap:wrap}
.gear-pill{
  flex:1 1 0;min-width:56px;text-align:center;padding:8px 4px;border-radius:10px;
  font-size:13.5px;font-weight:700;color:#a9c0d4;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
}
.gear-pill.on{background:rgba(18,163,123,.2);color:#7ff0cd;border-color:rgba(18,163,123,.45)}
.phone-note{font-size:12px;color:#7d94ab;line-height:1.7;margin-top:auto;padding-top:10px;border-top:1px dashed rgba(255,255,255,.12)}

/* ---------- sections ---------- */
.section{padding:var(--space) 0}
.section.alt{background:var(--bg-alt)}
.section.dark{background:linear-gradient(180deg,#0d2033,#0b1a2b);color:#e7f0f8}
.sec-head{max-width:780px;margin-bottom:34px}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand-deep);background:rgba(18,163,123,.1);
  padding:5px 12px;border-radius:999px;margin-bottom:12px;
}
.section.dark .sec-tag{color:#7ff0cd;background:rgba(18,163,123,.16)}
.sec-title{font-size:clamp(21px,2.5vw,30px);line-height:1.4;font-weight:700;color:var(--ink)}
.section.dark .sec-title{color:#f0f7fc}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}
.section.dark .sec-desc{color:#a9c0d4}

/* ---------- stats bar ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:rgba(255,255,255,.1);border-radius:var(--radius-lg);overflow:hidden;
  margin-top:-46px;position:relative;z-index:5;box-shadow:0 18px 40px rgba(11,26,43,.16);
}
.stat{background:#fff;padding:22px 20px;min-width:0}
.stat b{display:block;font-size:24px;color:var(--brand-deep);line-height:1.3;letter-spacing:.4px}
.stat span{display:block;font-size:13.5px;color:var(--muted);margin-top:4px}

/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.grid-2>*,.grid-3>*,.grid-4>*{min-width:0}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  min-width:0;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cfe0ea}
.card h3{font-size:17px;color:var(--ink);margin-bottom:9px;line-height:1.5}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.card-ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,163,123,.12);color:var(--brand-deep);font-weight:700;font-size:15px;margin-bottom:14px;
}
.card.gold .card-ico{background:rgba(224,160,42,.16);color:#a9750f}
.card.blue .card-ico{background:rgba(27,58,86,.1);color:var(--ink-3)}

/* ---------- pain list ---------- */
.pain .card{border-left:3px solid #e6b0b0}
.pain .card h3{color:#8d3b3b}

/* ---------- solution ---------- */
.solu .card{border-top:3px solid var(--brand)}

/* ---------- gearing plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;display:flex;flex-direction:column;gap:12px;min-width:0;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.plan .plan-top{display:flex;align-items:baseline;gap:6px}
.plan .plan-top b{font-size:28px;color:var(--ink);line-height:1;letter-spacing:.5px}
.plan .plan-top span{font-size:14px;color:var(--muted)}
.plan .plan-hint{font-size:13px;color:var(--muted);min-height:42px;line-height:1.65}
.plan dl{margin:0;display:flex;flex-direction:column;gap:8px;font-size:13.5px}
.plan dt{color:#8a9aab;font-size:12.5px}
.plan dd{margin:0;color:var(--ink-2);font-weight:600}
.plan.featured{border-color:rgba(18,163,123,.5);box-shadow:0 16px 34px rgba(18,163,123,.16);position:relative}
.plan-tag{
  position:absolute;top:-11px;right:16px;background:var(--brand);color:#04231a;
  font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:999px;
}

/* ---------- risk defense ---------- */
.def-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start}
.def-list{display:flex;flex-direction:column;gap:14px}
.def-item{
  display:flex;gap:14px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:16px 18px;min-width:0;
}
.def-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,163,123,.2);color:#7ff0cd;font-weight:700;font-size:14px;
}
.def-item h3{font-size:15.5px;color:#eaf4fb;margin-bottom:5px}
.def-item p{font-size:13.8px;color:#a9c0d4;line-height:1.78}
.def-panel{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);padding:22px;
}
.bar-row{margin-bottom:16px}
.bar-row:last-child{margin-bottom:0}
.bar-label{display:flex;justify-content:space-between;font-size:13px;color:#a9c0d4;margin-bottom:7px;gap:10px}
.bar-track{height:9px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#2ee6ad,#12a37b)}
.bar-fill.gold{background:linear-gradient(90deg,#f4cd7a,#e0a02a)}
.bar-fill.red{background:linear-gradient(90deg,#f0a2a2,#c9563f)}
.def-panel .panel-note{font-size:12.5px;color:#8fa6bd;line-height:1.75;margin-top:14px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.14)}

/* ---------- demo ---------- */
.demo-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:stretch}
.demo-steps{display:flex;flex-direction:column;gap:12px}
.demo-step{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px 16px;box-shadow:var(--shadow);min-width:0;
}
.demo-step .idx{
  flex:0 0 24px;width:24px;height:24px;border-radius:8px;background:rgba(18,163,123,.14);
  color:var(--brand-deep);font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.demo-step p{font-size:14.2px;color:var(--text);line-height:1.7}
.demo-panel{
  background:linear-gradient(165deg,#122a41,#0b1a2b);border-radius:var(--radius-lg);
  padding:24px;color:#e7f0f8;border:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:14px;
}
.demo-panel h3{font-size:15.5px;color:#eaf4fb}
.demo-row{display:flex;justify-content:space-between;gap:12px;font-size:13.8px;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.12)}
.demo-row:last-of-type{border-bottom:none}
.demo-row span{color:#93aabf}
.demo-row b{color:#5df0bf;font-weight:700;text-align:right}
.demo-panel .note{font-size:12px;color:#8fa6bd;line-height:1.7;margin-top:auto}

/* ---------- process ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 20px 22px;box-shadow:var(--shadow);min-width:0;transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:20px;background:var(--ink);color:#7ff0cd;
  font-size:12.5px;font-weight:700;padding:4px 11px;border-radius:999px;letter-spacing:1px;
}
.step h3{font-size:16px;color:var(--ink);margin:8px 0 8px}
.step p{font-size:14px;color:var(--muted);line-height:1.78}

/* ---------- scenario ---------- */
.scene .card{display:flex;flex-direction:column;gap:8px}
.scene .tag{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-deep);
  background:rgba(18,163,123,.11);padding:4px 10px;border-radius:999px;
}
.scene .risk{font-size:12.8px;color:#a1711b;background:rgba(224,160,42,.1);border-radius:8px;padding:8px 10px;margin-top:4px}

/* ---------- myth ---------- */
.myth .card{background:#fff;border-left:3px solid var(--accent)}
.myth .wrong{font-size:14px;color:#9a5a5a;margin-bottom:8px}
.myth .right{font-size:14px;color:var(--text);line-height:1.8}
.myth .right strong{color:var(--brand-deep)}

/* ---------- channel entry ---------- */
.entry-card{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow);
}
.entry-card h3{font-size:19px;color:var(--ink);margin-bottom:8px}
.entry-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.entry-meta span{font-size:12.5px;color:var(--ink-3);background:var(--bg-alt);padding:5px 11px;border-radius:999px}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);gap:26px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfe0ea}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.news-tag{font-size:12px;font-weight:700;color:var(--brand-deep);background:rgba(18,163,123,.1);padding:3px 10px;border-radius:999px}
.news-date{font-size:12.5px;color:#94a5b7}
.news-item h3{font-size:16.5px;color:var(--ink);line-height:1.6;margin-bottom:6px}
.news-item p{font-size:14px;color:var(--muted);line-height:1.78}
.news-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.news-side h3{font-size:15.5px;color:var(--ink);padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:6px}
.side-item{display:block;padding:12px 0;border-bottom:1px dashed var(--line);transition:color .2s ease}
.side-item:last-child{border-bottom:none}
.side-item:hover{color:var(--brand-deep)}
.side-item .t{font-size:14.2px;color:var(--ink-2);line-height:1.65}
.side-item:hover .t{color:var(--brand-deep)}
.side-item .d{font-size:12.5px;color:#94a5b7;margin-top:4px}
.cms-empty{font-size:14.5px;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:28px;text-align:center}
.more-wrap{margin-top:22px}
.more-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand-deep);
  padding:10px 20px;border-radius:999px;border:1px solid rgba(18,163,123,.4);background:rgba(18,163,123,.06);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.more-link:hover{background:var(--brand);color:#04231a;border-color:var(--brand)}

/* ---------- basics ---------- */
.basics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.basic{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);min-width:0;
}
.basic .num{
  flex:0 0 32px;width:32px;height:32px;border-radius:10px;background:var(--ink);color:#7ff0cd;
  display:flex;align-items:center;justify-content:center;font-size:13.5px;font-weight:700;
}
.basic h3{font-size:15.5px;color:var(--ink);margin-bottom:6px}
.basic p{font-size:14px;color:var(--muted);line-height:1.78}

/* ---------- download ---------- */
.download{
  background:
    radial-gradient(700px 320px at 12% 0%, rgba(18,163,123,.22), transparent 60%),
    linear-gradient(160deg,#0e2135,#0b1a2b);
  color:#e9f2f9;border-radius:var(--radius-lg);padding:40px 34px;
  border:1px solid rgba(255,255,255,.08);box-shadow:0 24px 54px rgba(11,26,43,.22);
}
.download-head{max-width:720px;margin-bottom:26px}
.download-head h2{font-size:clamp(21px,2.4vw,28px);color:#f0f7fc;line-height:1.4}
.download-head p{margin-top:10px;color:#a9c0d4;font-size:15px;line-height:1.85}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;align-items:flex-start;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);padding:18px 20px;min-width:0;
  transition:background .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.dl-btn:hover{background:rgba(18,163,123,.2);border-color:rgba(18,163,123,.5);transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.28)}
.dl-btn:active{transform:translateY(0)}
.dl-btn b{font-size:16px;color:#f2f9ff}
.dl-btn span{font-size:12.8px;color:#9db4c9;word-break:break-all}
.dl-note{margin-top:16px;font-size:12.8px;color:#8fa6bd;line-height:1.75}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0 20px;box-shadow:var(--shadow);transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(18,163,123,.45)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 30px 18px 0;position:relative;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand-deep);transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item p{font-size:14.5px;color:var(--muted);line-height:1.85;padding:0 0 20px}

/* ---------- final cta ---------- */
.final-cta{
  background:linear-gradient(150deg,#0e2135,#123a4f);color:#e9f2f9;
  border-radius:var(--radius-lg);padding:40px 34px;display:grid;
  grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:center;
  border:1px solid rgba(255,255,255,.08);
}
.final-cta h2{font-size:clamp(20px,2.3vw,26px);line-height:1.45;color:#f2f9ff;margin-bottom:10px}
.final-cta p{font-size:15px;color:#a9c0d4;line-height:1.85;max-width:640px}
.final-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:#0a1726;color:#9db4c9;padding:48px 0 26px;margin-top:var(--space)}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(2,minmax(0,1fr));gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .logo-mark{width:36px;height:36px;flex:0 0 36px;font-size:15px;border-radius:10px}
.footer-brand strong{color:#eaf4fb;font-size:17px;letter-spacing:.4px}
.footer-about p{font-size:13.8px;line-height:1.85;color:#8fa6bd;max-width:400px}
.footer-col h4{font-size:14.5px;color:#eaf4fb;margin-bottom:12px;font-weight:600}
.footer-col a{display:block;font-size:13.8px;color:#8fa6bd;padding:5px 0;transition:color .2s ease}
.footer-col a:hover{color:#5df0bf}
.footer-risk{
  margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  font-size:12.8px;line-height:1.85;color:#7d94ab;
}
.footer-bottom{
  margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.8px;color:#6f869d;
}

/* ---------- sticky mobile cta ---------- */
.sticky-cta{display:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--space:52px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .phone-card{margin:0 auto;max-width:400px;min-height:auto}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4,.plan-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .def-grid,.demo-grid,.news-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .final-cta{grid-template-columns:minmax(0,1fr)}
  .entry-card{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:768px){
  :root{--space:44px}
  body{padding-bottom:70px}
  .brand-row{padding:12px 0}
  .logo-text strong{font-size:16px}
  .logo-text small{display:none}
  .header-actions .btn-outline{display:none}
  .hero{padding:44px 0 58px}
  .hero-lead{font-size:15.5px}
  .stats{margin-top:-34px}
  .grid-2,.grid-3,.grid-4,.plan-grid,.steps,.basics,.dl-grid{grid-template-columns:minmax(0,1fr)}
  .download{padding:30px 22px}
  .final-cta{padding:30px 22px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .sticky-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;gap:10px;
    padding:10px 14px;background:rgba(10,23,38,.97);border-top:1px solid rgba(255,255,255,.1);
    backdrop-filter:blur(8px);
  }
  .sticky-cta a{
    flex:1 1 0;min-width:0;text-align:center;font-size:14px;font-weight:600;
    padding:11px 8px;border-radius:10px;
  }
  .sticky-cta .s1{background:var(--brand);color:#04231a}
  .sticky-cta .s2{background:rgba(255,255,255,.1);color:#e8f1f8;border:1px solid rgba(255,255,255,.18)}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .hero h1{font-size:25px}
  .stat b{font-size:20px}
  .card,.news-item{padding:18px}
  .phone-card{padding:16px 14px}
  .sec-title{font-size:20px}
  .upload-note,.footer-risk{font-size:12.5px}
}

/* roulang page: article */
:root{
  --ink:#0b1a2b;
  --ink-2:#122a41;
  --ink-3:#1b3a56;
  --brand:#12a37b;
  --brand-light:#0fbb8c;
  --brand-deep:#0c7a5c;
  --accent:#e0a02a;
  --bg:#f4f7fa;
  --bg-alt:#eaf0f6;
  --card:#ffffff;
  --text:#1b2b3c;
  --muted:#63748a;
  --line:#e0e8f0;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 28px rgba(15,37,64,.08);
  --shadow-hover:0 16px 36px rgba(15,37,64,.14);
  --space:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(18,163,123,.55);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,26,43,.96);
  color:#e8f1f8;
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(150deg,var(--brand-light),var(--brand-deep));
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#04231a;font-size:17px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(18,163,123,.32);
}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text strong{font-size:18px;letter-spacing:.5px;line-height:1.35}
.logo-text small{font-size:12px;color:#8fa6bd;letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04231a}
.btn-primary:hover{background:var(--brand-light);transform:translateY(-2px);box-shadow:0 10px 24px rgba(18,163,123,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);box-shadow:var(--shadow)}
.btn-sm{padding:8px 16px;font-size:14px}
.channel-row{border-top:1px solid rgba(255,255,255,.08)}
.channel-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:6px 0}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;padding:9px 14px;border-radius:999px;
  font-size:14.5px;color:#a9c0d4;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel-link:hover{color:#ffffff;background:rgba(255,255,255,.08)}
.channel-link.active{color:#04231a;background:var(--brand);font-weight:600}
.channel-link.dl{color:#7ff0cd;border:1px solid rgba(18,163,123,.42)}
.channel-link.dl:hover{background:rgba(18,163,123,.18);color:#b9ffe6}
/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#e9f2f9;
  padding:38px 0 48px;
  background:
    radial-gradient(820px 380px at 86% 0%, rgba(18,163,123,.22), transparent 62%),
    radial-gradient(560px 320px at 6% 96%, rgba(224,160,42,.12), transparent 66%),
    linear-gradient(180deg,#0b1a2b 0%,#0e2135 100%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#8fa6bd;margin-bottom:18px}
.crumbs a{color:#9db4c9;transition:color .2s ease}
.crumbs a:hover{color:#7ff0cd}
.crumbs .sep{color:#4c6a85}
.article-hero h1{
  font-size:clamp(24px,3vw,36px);line-height:1.38;font-weight:700;
  letter-spacing:.2px;margin:0 0 18px;max-width:920px;color:#f4fafd;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:#a9c0d4}
.meta-chip{
  padding:4px 12px;border-radius:999px;font-size:13px;
  background:rgba(18,163,123,.18);border:1px solid rgba(18,163,123,.4);color:#7ff0cd;
}
.meta-plain{padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12)}
/* ---------- sections ---------- */
.section{padding:clamp(38px,5vw,64px) 0}
.section.alt{background:var(--bg-alt)}
.sec-head{max-width:780px;margin-bottom:26px}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand-deep);background:rgba(18,163,123,.1);
  padding:5px 12px;border-radius:999px;margin-bottom:12px;
}
.sec-title{font-size:clamp(21px,2.4vw,29px);line-height:1.42;font-weight:700;color:var(--ink);margin:0 0 10px}
.sec-desc{color:var(--muted);font-size:15.5px;line-height:1.85;margin:0}
/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:30px;align-items:start}
.article-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 32px;box-shadow:var(--shadow);min-width:0;
}
.article-content{font-size:16.5px;line-height:1.95;color:#22374a;overflow-wrap:break-word;word-break:normal}
.article-content h2{
  font-size:21px;line-height:1.5;margin:34px 0 14px;padding-left:12px;
  border-left:4px solid var(--brand);color:var(--ink);
}
.article-content h2:first-child{margin-top:0}
.article-content h3{font-size:18px;line-height:1.55;margin:26px 0 12px;color:var(--ink-2)}
.article-content h4{font-size:16.5px;margin:22px 0 10px;color:var(--ink-2)}
.article-content p{margin:0 0 16px}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:22px}
.article-content li{margin-bottom:8px}
.article-content a{color:var(--brand-deep);border-bottom:1px solid rgba(12,122,92,.35)}
.article-content a:hover{color:var(--brand)}
.article-content img{border-radius:var(--radius);margin:18px 0}
.article-content blockquote{
  margin:20px 0;padding:14px 18px;background:var(--bg-alt);
  border-left:4px solid var(--brand);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#3b5063;
}
.article-content table{
  width:100%;max-width:100%;border-collapse:collapse;margin:18px 0;
  font-size:15px;display:block;overflow-x:auto;
}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-content th{background:var(--bg-alt);color:var(--ink);white-space:nowrap}
.article-content code{background:var(--bg-alt);padding:2px 6px;border-radius:6px;font-size:14px}
.article-content hr{border:0;border-top:1px solid var(--line);margin:26px 0}
.empty-state{text-align:center;padding:40px 10px}
.empty-state h2{font-size:20px;color:var(--ink);margin:0 0 12px}
.empty-state p{color:var(--muted);margin:0 0 20px}
/* ---------- sidebar ---------- */
.side-sticky{position:sticky;top:132px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 18px;box-shadow:var(--shadow);margin-bottom:18px;min-width:0;
}
.side-card h3{font-size:15px;margin:0 0 12px;color:var(--ink);letter-spacing:.3px}
.side-card p{font-size:13.8px;line-height:1.8;color:var(--muted);margin:0 0 14px}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.side-list a{
  display:flex;gap:8px;align-items:flex-start;font-size:14.5px;color:#3b5063;
  padding:6px 10px;border-radius:var(--radius-sm);
  transition:background .2s ease,color .2s ease;
}
.side-list a:hover{background:var(--bg-alt);color:var(--brand-deep)}
.side-list .idx{color:var(--brand);font-weight:700;font-size:13px;flex:0 0 auto}
.side-link-block{display:flex;flex-direction:column;gap:10px}
.side-link-block .btn{width:100%}
/* ---------- gearing cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3>*,.grid-2>*{min-width:0}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);min-width:0;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cfe0ea}
.card h3{font-size:17px;color:var(--ink);margin:0 0 10px;line-height:1.5}
.card p{font-size:14.8px;line-height:1.85;color:var(--muted);margin:0 0 12px}
.card p:last-child{margin-bottom:0}
.card .range{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand-deep);
  background:rgba(18,163,123,.1);padding:3px 10px;border-radius:999px;margin-bottom:12px;
}
.card ul{margin:0;padding-left:18px;font-size:14.6px;color:#3b5063;line-height:1.85}
.card ul li{margin-bottom:6px}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#bfe3d6;box-shadow:var(--shadow-hover)}
.faq-item summary{
  cursor:pointer;padding:16px 20px;font-size:15.6px;font-weight:600;color:var(--ink);
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;color:var(--brand);font-size:20px;line-height:1;font-weight:700;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 20px 18px;font-size:15px;line-height:1.9;color:var(--muted)}
/* ---------- download ---------- */
.dl-panel{
  border-radius:var(--radius-lg);padding:36px 32px;color:#e9f2f9;
  background:
    radial-gradient(620px 300px at 88% 0%, rgba(18,163,123,.28), transparent 64%),
    linear-gradient(150deg,#0f2a40 0%,#0b1a2b 100%);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:0 18px 42px rgba(11,26,43,.24);
}
.dl-panel h2{font-size:clamp(21px,2.4vw,28px);margin:0 0 10px;color:#f2f8fc;line-height:1.42}
.dl-panel p{color:#a9c0d4;font-size:15px;line-height:1.85;margin:0;max-width:760px}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:24px}
.dl-grid>*{min-width:0}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;padding:16px 18px;border-radius:var(--radius);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  transition:background .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.dl-btn strong{font-size:16px;color:#ffffff;font-weight:700}
.dl-btn span{font-size:12.5px;color:#9db4c9;letter-spacing:.2px}
.dl-btn:hover{background:rgba(18,163,123,.2);border-color:rgba(18,163,123,.52);transform:translateY(-2px);box-shadow:0 12px 26px rgba(4,35,26,.35)}
.dl-btn:active{transform:translateY(0)}
.dl-note{margin-top:18px;font-size:12.8px;color:#8299b0;line-height:1.8}
/* ---------- cta band ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:linear-gradient(135deg,#12a37b,#0c7a5c);color:#03261c;
  border-radius:var(--radius-lg);padding:28px 32px;box-shadow:0 16px 34px rgba(12,122,92,.26);
}
.cta-band h2{font-size:clamp(19px,2.2vw,24px);margin:0 0 6px;color:#04231a;line-height:1.45}
.cta-band p{margin:0;font-size:14.8px;line-height:1.8;color:rgba(4,35,26,.82);max-width:660px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.cta-band .btn-outline{background:#ffffff;border-color:#ffffff;color:#0c7a5c}
.cta-band .btn-outline:hover{background:#f2fbf7;color:#0a6149}
/* ---------- footer ---------- */
.site-footer{background:#0b1a2b;color:#a9c0d4;padding:52px 0 26px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr);gap:32px}
.footer-grid>*{min-width:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:#ffffff;font-size:17px}
.footer-about p{font-size:14px;line-height:1.85;color:#8fa6bd;margin:0}
.footer-col h4{font-size:15px;color:#e7f0f8;margin:0 0 12px;font-weight:700}
.footer-col a{display:block;font-size:14px;color:#8fa6bd;padding:4px 0;transition:color .2s ease}
.footer-col a:hover{color:#7ff0cd}
.footer-risk{
  font-size:12.8px;color:#7288a0;line-height:1.8;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius);padding:14px 16px;margin:30px 0 0;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.09);margin-top:22px;padding-top:18px;
  font-size:13px;color:#7288a0;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-sticky{position:static}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-about{grid-column:1 / -1}
}
@media (max-width:768px){
  .wrap{padding:0 18px}
  .brand-row{flex-wrap:wrap;gap:12px}
  .header-actions{gap:8px}
  .logo-text small{display:none}
  .article-panel{padding:26px 20px}
  .dl-panel{padding:26px 20px}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:24px 20px}
  .section{padding:38px 0}
}
@media (max-width:520px){
  .grid-3,.grid-2{grid-template-columns:minmax(0,1fr)}
  .article-hero{padding:28px 0 36px}
  .article-meta{font-size:12.8px}
  .article-content{font-size:16px;line-height:1.9}
  .article-content h2{font-size:19px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .btn{padding:10px 18px;font-size:14.5px}
  .btn-sm{padding:8px 14px;font-size:13.5px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

/* roulang page: category1 */
:root{
  --ink:#0b1a2b;
  --ink-2:#122a41;
  --ink-3:#1b3a56;
  --brand:#12a37b;
  --brand-light:#0fbb8c;
  --brand-deep:#0c7a5c;
  --accent:#e0a02a;
  --bg:#f4f7fa;
  --bg-alt:#eaf0f6;
  --card:#ffffff;
  --text:#1b2b3c;
  --muted:#63748a;
  --line:#e0e8f0;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 28px rgba(15,37,64,.08);
  --shadow-hover:0 16px 36px rgba(15,37,64,.14);
  --space:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:1.15em}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(18,163,123,.55);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,26,43,.96);color:#e8f1f8;
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(150deg,var(--brand-light),var(--brand-deep));
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#04231a;font-size:17px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(18,163,123,.32);
}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text strong{font-size:18px;letter-spacing:.5px;line-height:1.35}
.logo-text small{font-size:12px;color:#8fa6bd;letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04231a}
.btn-primary:hover{background:var(--brand-light);transform:translateY(-2px);box-shadow:0 10px 24px rgba(18,163,123,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:rgba(255,255,255,.08);color:#e8f1f8;border-color:rgba(255,255,255,.2)}
.btn-ghost:hover{background:rgba(255,255,255,.17)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);box-shadow:var(--shadow)}
.btn-sm{padding:8px 16px;font-size:14px}
.channel-row{border-top:1px solid rgba(255,255,255,.08)}
.channel-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:6px 0}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;padding:8px 14px;border-radius:999px;font-size:14.5px;color:#b7cadc;
  white-space:nowrap;transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.channel-link:hover{background:rgba(255,255,255,.1);color:#fff}
.channel-link.active{background:rgba(18,163,123,.2);color:#7ff0cd;box-shadow:inset 0 0 0 1px rgba(18,163,123,.42)}
.channel-link.dl{color:#ffd98a}
.channel-link.dl:hover{color:#ffe9b8}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#e9f2f9;padding:52px 0 64px;
  background:
    radial-gradient(880px 420px at 84% 4%, rgba(18,163,123,.24), transparent 62%),
    radial-gradient(620px 360px at 8% 90%, rgba(224,160,42,.13), transparent 66%),
    linear-gradient(180deg,#0b1a2b 0%,#0e2135 100%);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13.5px;
  background:rgba(18,163,123,.15);color:#7ff0cd;border:1px solid rgba(18,163,123,.32);
  margin-bottom:18px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#2ee6ad;box-shadow:0 0 0 4px rgba(46,230,173,.18)}
.hero h1{font-size:clamp(26px,3.1vw,39px);line-height:1.34;font-weight:700;letter-spacing:.2px;margin-bottom:16px}
.hero h1 em{font-style:normal;color:#5df0bf}
.hero-lead{font-size:16.5px;line-height:1.9;color:#b7cadc;max-width:620px}
.check-bar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;margin-top:24px;max-width:560px}
.check-item{display:flex;align-items:flex-start;gap:9px;font-size:14.5px;color:#c8dae9;min-width:0}
.check-item i{
  flex:0 0 18px;width:18px;height:18px;border-radius:50%;
  background:rgba(18,163,123,.22);border:1px solid rgba(46,230,173,.5);
  color:#5df0bf;font-size:11px;font-style:normal;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:4px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-panel{
  width:100%;border-radius:22px;padding:20px 18px;
  background:linear-gradient(165deg,#16293e 0%,#0a172b 100%);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 28px 60px rgba(0,0,0,.42);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.panel-head strong{font-size:15px;color:#eaf4fb}
.panel-head span{font-size:12.5px;color:#7d94ab}
.gear-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.gear-pill{
  flex:1 1 0;min-width:52px;text-align:center;padding:8px 4px;border-radius:10px;
  font-size:13.5px;font-weight:700;color:#a9c0d4;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
}
.gear-pill.on{background:rgba(18,163,123,.2);color:#7ff0cd;border-color:rgba(18,163,123,.45)}
.panel-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.panel-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 12px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  font-size:13.8px;color:#b7cadc;line-height:1.65;
}
.panel-list li b{color:#7ff0cd;font-weight:700;flex:0 0 auto}

/* ---------- sections ---------- */
.section{padding:var(--space) 0}
.section.alt{background:var(--bg-alt)}
.section.dark{background:linear-gradient(180deg,#0d2033,#0b1a2b);color:#e7f0f8}
.sec-head{max-width:760px;margin-bottom:30px}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand-deep);background:rgba(18,163,123,.1);
  padding:5px 12px;border-radius:999px;margin-bottom:12px;
}
.section.dark .sec-tag{color:#7ff0cd;background:rgba(18,163,123,.16)}
.sec-title{font-size:clamp(21px,2.5vw,29px);line-height:1.42;font-weight:700;color:var(--ink)}
.sec-desc{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.9}
.section.dark .sec-title{color:#f0f7fc}
.section.dark .sec-desc{color:#a9c0d4}

/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2>*,.grid-3>*{min-width:0}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  min-width:0;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cfe0ea}
.card h3{font-size:17px;color:var(--ink);margin-bottom:9px;line-height:1.5}
.card p{font-size:14.8px;color:var(--muted);line-height:1.85}
.card-ico{
  width:38px;height:38px;border-radius:11px;margin-bottom:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,163,123,.12);color:var(--brand-deep);
  font-weight:700;font-size:15px;
}
.card-num{
  font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--brand-deep);
  background:rgba(18,163,123,.1);border-radius:999px;padding:3px 10px;display:inline-block;margin-bottom:12px;
}

/* ---------- tag list ---------- */
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.tag{
  font-size:13px;color:var(--brand-deep);background:#fff;border:1px solid #d5e6e0;
  padding:5px 12px;border-radius:999px;
}

/* ---------- table ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.gear-table{width:100%;border-collapse:collapse;min-width:620px;font-size:14.8px}
.gear-table th,.gear-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.gear-table thead th{background:#f0f5f9;color:var(--ink);font-size:14px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.gear-table tbody tr:last-child td{border-bottom:none}
.gear-table tbody tr:hover{background:#f8fbfd}
.gear-table td strong{color:var(--ink);font-weight:700}
.gear-table .col-key{color:var(--brand-deep);font-weight:700;white-space:nowrap}

/* ---------- risk panel ---------- */
.risk-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow);
}
.risk-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:16px}
.risk-list li{display:flex;gap:14px;align-items:flex-start;min-width:0}
.risk-dot{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;
  background:rgba(224,160,42,.14);color:#a4711a;font-weight:700;font-size:13px;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.risk-list h4{font-size:15.5px;color:var(--ink);margin-bottom:4px}
.risk-list p{font-size:14.6px;color:var(--muted);line-height:1.8}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 18px 20px;box-shadow:var(--shadow);min-width:0;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:block;font-size:13px;font-weight:700;color:var(--brand-deep);
  background:rgba(18,163,123,.1);border-radius:8px;padding:3px 9px;margin-bottom:12px;width:fit-content;
}
.step h3{font-size:15.5px;color:var(--ink);margin-bottom:7px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- caution block ---------- */
.caution{
  background:linear-gradient(160deg,#fff8ec,#fffdf8);
  border:1px solid #f0dfba;border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
}
.caution h3{font-size:16.5px;color:#8a5d13;margin-bottom:10px}
.caution ul{margin:0;padding-left:1.15em;color:#7b6537;font-size:14.6px;line-height:1.9}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item[open]{border-color:#bde0d3;box-shadow:var(--shadow-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--brand-deep);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.9px;color:var(--muted);line-height:1.9}

/* ---------- download ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.dl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px;box-shadow:var(--shadow);min-width:0;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#bde0d3}
.dl-tag{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.6px;
  color:var(--brand-deep);background:rgba(18,163,123,.1);padding:4px 10px;border-radius:999px;
}
.dl-card h3{font-size:17.5px;color:var(--ink)}
.dl-card p{font-size:14.4px;color:var(--muted);line-height:1.8;flex:1 1 auto}
.dl-card .btn{width:100%;margin-top:6px}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{
  display:flex;flex-direction:column;gap:8px;min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#bde0d3}
.news-cat{align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-deep);background:rgba(18,163,123,.1);padding:3px 10px;border-radius:999px}
.news-card h3{font-size:16px;color:var(--ink);line-height:1.55;margin:0}
.news-card p{font-size:14.2px;color:var(--muted);line-height:1.8;margin:0;flex:1 1 auto}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.8px;color:#8b9aab;margin-top:6px}
.news-more{color:var(--brand-deep);font-weight:600}
.news-empty{font-size:15px;color:var(--muted);background:#fff;border:1px dashed #cfdde8;border-radius:var(--radius);padding:26px;text-align:center}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,#0c2136,#123c50 60%,#0e5a49);
  border-radius:var(--radius-lg);padding:34px 32px;color:#eaf4fb;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:0 20px 46px rgba(11,26,43,.28);
}
.cta-band h2{font-size:clamp(19px,2.2vw,25px);line-height:1.45;margin-bottom:8px}
.cta-band p{font-size:14.8px;color:#a9c0d4;line-height:1.85;max-width:640px}

/* ---------- footer ---------- */
.site-footer{background:#0b1a2b;color:#a9c0d4;padding:52px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr);gap:34px;padding-bottom:30px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#eaf4fb}
.footer-brand strong{font-size:17px;letter-spacing:.4px}
.footer-about p{font-size:14.2px;line-height:1.9;color:#93a9bd;max-width:520px}
.footer-col h4{font-size:14.5px;color:#eaf4fb;margin-bottom:12px;letter-spacing:.4px}
.footer-col a{display:block;font-size:14.2px;color:#93a9bd;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#7ff0cd;transform:translateX(3px)}
.footer-risk{
  font-size:13.2px;line-height:1.9;color:#7d94ab;
  border-top:1px solid rgba(255,255,255,.09);padding-top:20px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;color:#7d94ab;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--space:46px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero-panel{max-width:520px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
}
@media (max-width:768px){
  :root{--space:38px}
  .brand-row{flex-wrap:wrap;gap:12px;padding:12px 0}
  .logo-text strong{font-size:16.5px}
  .logo-text small{font-size:11.5px}
  .header-actions{width:100%;justify-content:flex-start}
  .channel-link{padding:7px 12px;font-size:14px}
  .check-bar{grid-template-columns:minmax(0,1fr)}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid,.dl-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:26px 22px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .hero{padding:40px 0 48px}
  .hero-actions .btn{width:100%}
  .steps{grid-template-columns:minmax(0,1fr)}
  .card,.dl-card,.news-card{padding:20px 18px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-item .faq-body{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}