/* roulang page: index */
:root{
  --main:#17B8A6;
  --main-deep:#0E8A7D;
  --main-soft:#E4F7F4;
  --accent:#FF7A59;
  --accent-soft:#FFE6DF;
  --bg:#FFFBF7;
  --bg-alt:#F4F7F5;
  --dark:#12292B;
  --line:#E7E2DA;
  --text:#1F2A2C;
  --muted:#5C6B6D;
  --r-card:18px;
  --r-block:26px;
  --r-pill:999px;
  --shadow:0 6px 20px rgba(18,41,43,.06);
  --shadow-hover:0 12px 32px rgba(18,41,43,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--main-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,251,247,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:none}
.brand:hover{color:var(--text)}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--main);position:relative;flex:none;box-shadow:0 6px 16px rgba(23,184,166,.35)}
.brand-mark::after{content:"";position:absolute;left:9px;top:8px;width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.78)}
.brand-text strong{display:block;font-size:17px;line-height:1.3;letter-spacing:.2px}
.brand-text small{display:block;font-size:11.5px;line-height:1.4;color:var(--muted);letter-spacing:.4px}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{position:relative;padding:8px 11px;font-size:15px;color:var(--text);border-radius:10px;transition:color .2s,background .2s}
.nav a:hover{color:var(--main-deep);background:rgba(23,184,166,.08)}
.nav a.is-active{color:var(--main-deep);font-weight:600}
.nav a.is-active::after{content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;border-radius:2px;background:var(--main)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;white-space:nowrap}
.btn-primary{background:var(--main);color:#fff;box-shadow:0 8px 20px rgba(23,184,166,.24)}
.btn-primary:hover{background:var(--main-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,138,125,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-ghost:hover{background:var(--accent-soft);color:var(--accent);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-light{background:#fff;color:var(--main-deep)}
.btn-light:hover{background:var(--main-soft);color:var(--main-deep);transform:translateY(-2px)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--main-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.link-more:hover{color:var(--accent)}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;padding:70px 0 66px;background:var(--bg)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/f2aab5970911a506.webp');background-size:cover;background-position:center;opacity:.13}
.hero::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(23,184,166,.07);right:-120px;top:-140px;pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:var(--main-soft);color:var(--main-deep);font-size:13px;font-weight:600;letter-spacing:.2px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--main)}
.hero h1{margin-top:18px;font-size:clamp(30px,4.2vw,50px);line-height:1.24;font-weight:700;letter-spacing:-.6px}
.hero h1 b{color:var(--main-deep);font-weight:700}
.hero-sub{margin-top:16px;max-width:590px;font-size:16.5px;color:var(--muted);line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:26px;font-size:13.5px;color:var(--muted)}
.hero-trust li{display:flex;align-items:center;gap:7px}
.hero-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-visual{position:relative}
.hero-bubble{position:absolute;width:150px;height:150px;border-radius:50%;background:rgba(255,122,89,.14);left:-40px;bottom:-30px;z-index:0}
.hero-card{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:14px;box-shadow:var(--shadow-hover)}
.hero-card img{width:100%;aspect-ratio:4/3.2;object-fit:cover;border-radius:14px}
.hero-card-row{display:flex;align-items:center;gap:14px;padding:16px 8px 8px}
.version-stamp{display:inline-flex;align-items:center;justify-content:center;min-width:64px;height:34px;padding:0 10px;border-radius:10px;border:1.5px dashed var(--main);color:var(--main-deep);font-size:13.5px;font-weight:700;letter-spacing:.5px}
.hero-card-row strong{display:block;font-size:15px;line-height:1.4}
.hero-card-row small{display:block;font-size:12.5px;color:var(--muted);line-height:1.5}

/* ============ version band ============ */
.version-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:0}
.version-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.version-cell{padding:24px 8px;text-align:center;border-left:1px solid var(--line)}
.version-cell:first-child{border-left:0}
.version-cell span{display:block;font-size:13px;color:var(--muted)}
.version-cell strong{display:block;margin-top:4px;font-size:19px;font-weight:700;color:var(--main-deep);letter-spacing:.2px}

/* ============ generic section ============ */
.section{padding:78px 0}
.section--alt{background:var(--bg-alt)}
.section--white{background:#fff}
.sec-head{max-width:740px;margin-bottom:40px}
.sec-eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:1px;margin-bottom:10px}
.sec-head h2{font-size:clamp(23px,2.9vw,33px);line-height:1.34;font-weight:700;letter-spacing:-.4px}
.sec-head h2 em{font-style:normal;position:relative;display:inline-block}
.sec-head h2 em::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:6px;border-radius:6px;background:rgba(23,184,166,.28)}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s}
.step:nth-child(2){transform:translateY(22px)}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cdeee9}
.step:nth-child(2):hover{transform:translateY(18px)}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--main-soft);color:var(--main-deep);font-weight:700;font-size:16px}
.step h3{margin-top:14px;font-size:19px}
.step p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.8}
.step-img{margin-top:16px;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;background:var(--bg-alt)}

/* ============ city ============ */
.city-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.city-chip{padding:7px 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;font-size:14px;color:var(--text);transition:.2s}
.city-chip:hover{border-color:var(--main);color:var(--main-deep);background:var(--main-soft);transform:translateY(-2px)}
.city-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.city-card{position:relative;overflow:hidden;border-radius:var(--r-block);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s}
.city-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.city-card img{width:100%;aspect-ratio:16/8;object-fit:cover}
.city-card-body{padding:20px 22px 24px}
.city-card-body h3{font-size:19px}
.city-card-body p{margin-top:8px;font-size:14.5px;color:var(--muted)}
.city-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

/* ============ badges / tags ============ */
.badge{display:inline-flex;align-items:center;height:25px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;letter-spacing:.2px}
.badge-accent{background:var(--accent-soft);color:#C8452A}
.badge-main{background:var(--main-soft);color:var(--main-deep)}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:500}

/* ============ buddy ============ */
.buddy-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.buddy-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s;display:flex;flex-direction:column}
.buddy-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cdeee9}
.buddy-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.buddy-body{padding:18px 20px 20px}
.buddy-body h3{font-size:17.5px}
.buddy-body p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.7}
.buddy-meta{margin-top:12px;font-size:12.5px;color:var(--accent);font-weight:600}
.buddy-card.large{grid-column:span 2;flex-direction:row;align-items:stretch}
.buddy-card.large img{width:44%;aspect-ratio:auto;height:100%;min-height:190px}
.buddy-card.large .buddy-body{display:flex;flex-direction:column;justify-content:center;padding:24px}
.buddy-card.large .buddy-body h3{font-size:20px}

/* ============ changelog ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--main),rgba(23,184,166,.15))}
.tl-item{position:relative;padding:0 0 28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-28px;top:8px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--main)}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tl-head strong{font-size:17px}
.tl-item ul{margin-top:8px;display:grid;gap:6px}
.tl-item li{position:relative;padding-left:18px;font-size:14.5px;color:var(--muted)}
.tl-item li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--main)}

/* ============ activities ============ */
.act-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:8px 26px;box-shadow:var(--shadow)}
.act-item{display:grid;grid-template-columns:78px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.act-item:last-child{border-bottom:0}
.act-date{background:var(--main-soft);color:var(--main-deep);border-radius:14px;text-align:center;padding:10px 4px;line-height:1.25}
.act-date strong{display:block;font-size:20px;font-weight:700}
.act-date span{display:block;font-size:12px}
.act-main h3{font-size:17px}
.act-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.act-detail{font-size:14px;font-weight:600;color:var(--main-deep);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
.act-detail:hover{color:var(--accent)}

/* ============ split blocks ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-block);box-shadow:var(--shadow)}
.safe-list{display:grid;gap:16px;margin-top:26px}
.safe-item{display:flex;gap:14px;align-items:flex-start}
.safe-icon{flex:none;width:38px;height:38px;border-radius:12px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--main-deep);font-size:15px;font-weight:700}
.safe-item h3{font-size:16.5px}
.safe-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ tips mix ============ */
.tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tip-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s}
.tip-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cdeee9}
.tip-card h3{font-size:17px}
.tip-card p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.8}
.tip-card.wide{grid-column:span 2;display:flex;gap:20px;align-items:center}
.tip-card.wide img{width:150px;aspect-ratio:1;object-fit:cover;border-radius:14px;flex:none}

/* ============ stories ============ */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.story-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow)}
.story-top{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--main-soft);color:var(--main-deep);display:grid;place-items:center;font-weight:700;font-size:15px;flex:none}
.story-top strong{display:block;font-size:15px}
.story-top small{display:block;font-size:12.5px;color:var(--muted)}
.story-card blockquote{margin:14px 0 0;font-size:15px;color:var(--text);line-height:1.85}
.story-tags{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}

.submit-card{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:26px;box-shadow:var(--shadow)}
.submit-card h3{font-size:17px}
.submit-card p{font-size:14px;color:var(--muted);margin-top:6px}
.form-grid{display:grid;grid-template-columns:1fr 1fr 2fr auto;gap:14px;margin-top:18px;align-items:end}
.field label{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:6px}
.field input{width:100%;height:46px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 14px;font-size:14.5px;color:var(--text);transition:border-color .2s,box-shadow .2s}
.field input::placeholder{color:#A9B4B3}
.field input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 3px rgba(23,184,166,.18)}
.form-note{margin-top:10px;font-size:12.5px;color:var(--muted)}

/* ============ compat ============ */
.compat-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow)}
.compat-card h3{display:flex;align-items:center;gap:10px;font-size:18px}
.compat-q{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.compat-q strong{display:block;font-size:15px}
.compat-q p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-top:4px}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cdeee9}
.news-link{display:block;color:inherit}
.news-link:hover{color:inherit}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-alt)}
.news-body{padding:18px 20px 22px}
.news-body h3{margin-top:10px;font-size:17px;line-height:1.55;transition:color .2s}
.news-card:hover h3{color:var(--main-deep)}
.news-body p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:14px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.news-meta::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-block);padding:56px 24px;text-align:center}
.empty-state strong{display:block;font-size:17px}
.empty-state p{margin-top:8px;color:var(--muted);font-size:14.5px}
.empty-state .btn{margin-top:20px}

/* ============ compare ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{border-radius:var(--r-block);padding:28px}
.compare-card.free{background:#fff;border:1.5px solid var(--main);box-shadow:var(--shadow)}
.compare-card.plus{background:var(--accent-soft);border:1px solid #F8CFC4}
.compare-card h3{font-size:19px}
.compare-card .badge{margin-bottom:12px}
.compare-card ul{margin-top:18px;display:grid;gap:12px}
.compare-card li{position:relative;padding-left:26px;font-size:15px;line-height:1.7}
.compare-card li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:50%;background:var(--main-soft);color:var(--main-deep);font-size:11px;display:grid;place-items:center;line-height:1}
.compare-card.plus li::before{background:#fff;color:var(--accent)}

/* ============ faq ============ */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:8px 28px;box-shadow:var(--shadow)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 2px;font-size:17px;font-weight:600;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:none;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--main-deep);font-size:17px;line-height:1;transition:transform .22s,background .22s,color .22s,border-color .22s}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--main);border-color:var(--main);color:#fff}
.faq-body{padding:0 2px 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:900px}

/* ============ final cta ============ */
.cta-band{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:76px 0}
.cta-band .cta-bg{position:absolute;inset:0;background-image:url('/assets/images/7366202b7f8d4c1a.webp');background-size:cover;background-position:center;opacity:.16}
.cta-band::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:rgba(23,184,166,.16);right:-80px;bottom:-120px}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center}
.cta-inner h2{font-size:clamp(23px,2.9vw,32px);line-height:1.35;color:#fff}
.cta-inner p{margin-top:12px;color:#C9D6D4;font-size:15px;max-width:640px}
.cta-note{margin-top:12px;font-size:13px;color:#9FB2AF}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:#C9D6D4;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#9FB2AF}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A9BCB9;max-width:320px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#C9D6D4;font-size:14px}
.footer-col a:hover{color:var(--main)}
.footer-bottom{margin-top:44px;padding:20px 0 26px;border-top:1px solid rgba(201,214,212,.16);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#8FA3A0}
.footer-bottom span{display:block}

/* ============ responsive ============ */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr 1fr;gap:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-col.extra{display:none}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--bg);padding:22px 24px 48px;margin:0;
    border-top:1px solid var(--line);overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:transform .24s ease,opacity .24s ease,visibility .24s;
  }
  .nav.is-open{transform:none;opacity:1;visibility:visible}
  .nav a{padding:14px 16px;font-size:16px;border-radius:12px}
  .nav a.is-active::after{display:none}
  .nav a.is-active{background:var(--main-soft)}
  .header-actions .btn-sm{display:none}
  .hero{padding:52px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:clamp(28px,5.4vw,38px)}
  .section{padding:58px 0}
  .version-grid{grid-template-columns:1fr 1fr}
  .version-cell:nth-child(3){border-left:0}
  .version-cell:nth-child(n+3){border-top:1px solid var(--line)}
  .steps{grid-template-columns:1fr;gap:18px}
  .step:nth-child(2){transform:none}
  .step:nth-child(2):hover{transform:translateY(-4px)}
  .city-grid,.split,.story-grid,.compat-grid,.compare-grid{grid-template-columns:1fr;gap:24px}
  .buddy-grid{grid-template-columns:1fr 1fr}
  .buddy-card.large{grid-column:span 2;flex-direction:row}
  .tip-grid{grid-template-columns:1fr 1fr}
  .tip-card.wide{grid-column:span 2}
  .news-grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr 1fr}
  .form-grid .field-full{grid-column:span 2}
  .form-grid .btn{grid-column:span 2;justify-self:start}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  html{scroll-padding-top:84px}
  .nav{top:64px}
  .brand-text small{display:none}
  .hero{padding:40px 0 46px}
  .hero h1{font-size:clamp(25px,7vw,31px);letter-spacing:-.3px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:8px 16px;font-size:13px}
  .section{padding:48px 0}
  .version-cell{padding:18px 6px}
  .version-cell strong{font-size:17px}
  .act-list{padding:4px 18px}
  .act-item{grid-template-columns:64px 1fr;gap:14px;row-gap:10px}
  .act-detail{grid-column:2}
  .faq-wrap{padding:4px 18px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .buddy-grid{grid-template-columns:1fr}
  .buddy-card.large{grid-column:span 1;flex-direction:column}
  .buddy-card.large img{width:100%;min-height:0;aspect-ratio:16/9}
  .tip-grid{grid-template-columns:1fr}
  .tip-card.wide{grid-column:span 1;flex-direction:column;align-items:flex-start}
  .tip-card.wide img{width:100%;aspect-ratio:16/9}
  .news-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-grid .field-full,.form-grid .btn{grid-column:span 1}
  .form-grid .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .submit-card,.compat-card,.compare-card{padding:22px 18px}
}
@media (max-width:480px){
  body{font-size:15px}
  .hero h1{font-size:24px}
  .sec-head h2{font-size:21px}
  .btn{height:46px;font-size:14.5px}
}

/* roulang page: article */
:root{
  --main:#17B8A6;
  --main-deep:#0E8A7D;
  --main-soft:#E4F7F4;
  --accent:#FF7A59;
  --accent-soft:#FFE6DF;
  --bg:#FFFBF7;
  --bg-alt:#F4F7F5;
  --dark:#12292B;
  --line:#E7E2DA;
  --text:#1F2A2C;
  --muted:#5C6B6D;
  --r-card:18px;
  --r-block:26px;
  --r-pill:999px;
  --shadow:0 6px 20px rgba(18,41,43,.06);
  --shadow-hover:0 12px 32px rgba(18,41,43,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--main-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px}
/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,251,247,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:none}
.brand:hover{color:var(--text)}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--main);position:relative;flex:none;box-shadow:0 6px 16px rgba(23,184,166,.35)}
.brand-mark::after{content:"";position:absolute;left:9px;top:8px;width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.78)}
.brand-text strong{display:block;font-size:17px;line-height:1.3;letter-spacing:.2px}
.brand-text small{display:block;font-size:11.5px;line-height:1.4;color:var(--muted);letter-spacing:.4px}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{position:relative;padding:8px 11px;font-size:15px;color:var(--text);border-radius:10px;transition:color .2s,background .2s}
.nav a:hover{color:var(--main-deep);background:rgba(23,184,166,.08)}
.nav a.is-active{color:var(--main-deep);font-weight:600}
.nav a.is-active::after{content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;border-radius:2px;background:var(--main)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open{overflow:hidden}
/* ============ buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;white-space:nowrap}
.btn-primary{background:var(--main);color:#fff;box-shadow:0 8px 20px rgba(23,184,166,.24)}
.btn-primary:hover{background:var(--main-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,138,125,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-ghost:hover{background:var(--accent-soft);color:var(--accent);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--main-deep)}
.btn-light:hover{background:var(--main-soft);color:var(--main-deep);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
/* ============ 文章头部 ============ */
.article-hero{position:relative;overflow:hidden;padding:40px 0 44px;background:var(--bg);border-bottom:1px solid var(--line)}
.article-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/7366202b7f8d4c1a.webp');background-size:cover;background-position:center;opacity:.09}
.article-hero::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(23,184,166,.08);right:-110px;top:-150px;pointer-events:none}
.article-hero .container{position:relative}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--main-deep)}
.crumbs .sep{color:var(--line)}
.tag-pill{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 13px;border-radius:var(--r-pill);background:var(--accent-soft);color:#D9522F;font-size:12.5px;font-weight:600}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.tag-neutral{display:inline-flex;align-items:center;height:26px;padding:0 13px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--muted);font-size:12.5px}
.article-title{margin-top:16px;font-size:clamp(27px,3.6vw,44px);line-height:1.3;font-weight:700;letter-spacing:-.5px;max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:22px;font-size:13.5px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--main);flex:none}
/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:52px;align-items:start;padding:56px 0 78px}
.article-main{min-width:0}
.article-body{font-size:16.5px;line-height:1.9;color:var(--text);max-width:820px}
.article-body h2{position:relative;margin:40px 0 16px;padding-left:18px;font-size:26px;line-height:1.4;font-weight:700}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:3px;background:var(--main)}
.article-body h3{margin:28px 0 12px;font-size:20px;line-height:1.5;font-weight:700}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--main-deep)}
.article-body p{margin:0 0 16px}
.article-body a{color:var(--main-deep);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body ul{margin:0 0 18px;padding:0}
.article-body ul li{position:relative;margin-bottom:9px;padding-left:20px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;background:var(--main)}
.article-body ol{margin:0 0 18px;padding-left:22px;list-style:decimal}
.article-body ol li{margin-bottom:9px;padding-left:4px}
.article-body ol li::marker{color:var(--main);font-weight:700}
.article-body blockquote{margin:24px 0;padding:18px 24px;background:var(--main-soft);border-left:4px solid var(--main);border-radius:0 14px 14px 0;color:var(--text);font-size:16px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:22px 0 10px;width:100%;height:auto}
.article-body figure{margin:22px 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--muted);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:var(--bg-alt);font-size:13.5px;font-weight:600;color:var(--muted)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0}
/* 要点速览（移动端顶部条） */
.mobile-toc{display:none;margin-bottom:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--shadow)}
.mobile-toc summary{font-size:15px;font-weight:600;color:var(--main-deep);cursor:pointer}
.mobile-toc ul{margin-top:12px;display:grid;gap:8px}
.mobile-toc ul a{font-size:14px;color:var(--muted)}
.mobile-toc ul a:hover{color:var(--main-deep)}
/* 侧栏 */
.sidebar{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow)}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px}
.side-title::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.side-toc{display:grid;gap:10px}
.side-toc a{display:block;font-size:14px;line-height:1.6;color:var(--muted);padding-left:14px;position:relative}
.side-toc a::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--line);transition:background .2s}
.side-toc a:hover{color:var(--main-deep)}
.side-toc a:hover::before{background:var(--main)}
.info-rows{display:grid;gap:0}
.info-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.info-row:last-child{border-bottom:0}
.info-row span{color:var(--muted)}
.info-row strong{font-weight:600;font-variant-numeric:tabular-nums;color:var(--text)}
.side-cta{background:var(--dark);border-radius:var(--r-card);padding:24px;color:#C9D6D4;border:1px solid rgba(255,255,255,.08)}
.side-cta h3{font-size:16px;color:#fff;margin-bottom:8px;line-height:1.5}
.side-cta p{font-size:13.5px;line-height:1.75;margin-bottom:16px}
.side-cta .btn{width:100%}
/* 空态 */
.empty-state{padding:56px 24px;text-align:center;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-block)}
.empty-state .e-icon{width:56px;height:56px;border-radius:50%;background:var(--accent-soft);margin:0 auto 18px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}
/* ============ section 通用 ============ */
.section{padding:72px 0}
.section--alt{background:var(--bg-alt)}
.section--white{background:#fff}
.sec-head{max-width:720px;margin-bottom:38px}
.sec-eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:1px;margin-bottom:10px}
.sec-head h2{font-size:clamp(23px,2.6vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.3px}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}
/* 安全提示条 */
.notice-bar{display:flex;gap:20px;align-items:flex-start;background:var(--accent-soft);border:1px solid rgba(255,122,89,.32);border-radius:var(--r-block);padding:28px 30px}
.notice-icon{width:46px;height:46px;border-radius:14px;background:#fff;flex:none;position:relative;box-shadow:var(--shadow)}
.notice-icon::before{content:"!";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:700;font-size:22px}
.notice-body h2{font-size:20px;line-height:1.45;margin-bottom:8px}
.notice-body p{font-size:15px;line-height:1.8;color:#7A4132}
.notice-body p+p{margin-top:6px}
/* 相关推荐 */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#BFE9E3}
.post-card .thumb{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bg-alt)}
.post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card-body h3{font-size:17.5px;line-height:1.55;font-weight:700}
.post-card:hover .post-card-body h3{color:var(--main-deep)}
.post-card-body p{font-size:14px;line-height:1.75;color:var(--muted)}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--muted)}
.post-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--line)}
/* 上一篇 / 下一篇 */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#BFE9E3}
.pn-card small{display:block;font-size:12.5px;color:var(--accent);font-weight:600;letter-spacing:.6px;margin-bottom:8px}
.pn-card strong{display:block;font-size:17px;line-height:1.55;color:var(--text);font-weight:700}
.pn-card:hover strong{color:var(--main-deep)}
.pn-card span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7}
.back-row{margin-top:26px;font-size:14px}
.back-row a{display:inline-flex;align-items:center;gap:8px;color:var(--main-deep);text-decoration:underline;text-underline-offset:3px}
/* CTA */
.cta-wrap{padding:0 0 84px}
.cta-band{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-block);padding:54px 48px;color:#C9D6D4}
.cta-band::after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:rgba(23,184,166,.14);right:-80px;bottom:-140px}
.cta-band::before{content:"";position:absolute;width:150px;height:150px;border-radius:50%;background:rgba(255,122,89,.12);right:120px;top:-70px}
.cta-band h2{position:relative;color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.4;max-width:640px}
.cta-band p{position:relative;margin-top:12px;font-size:15px;line-height:1.8;max-width:600px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;align-items:center}
.cta-hint{font-size:13px;color:#9FB3B0}
/* ============ footer ============ */
.site-footer{background:var(--dark);color:#C9D6D4;padding:64px 0 26px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand{color:#fff}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text small{color:#8FA5A2}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A9BEBB;max-width:340px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#C9D6D4;font-size:14px}
.footer-col a:hover{color:var(--main)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;font-size:13px;color:#8FA5A2}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .footer-col.extra{display:none}
}
@media (max-width:991px){
  .nav{position:fixed;top:72px;left:0;right:0;bottom:0;display:none;flex-direction:column;align-items:stretch;gap:6px;margin:0;padding:22px 24px 40px;background:var(--bg);overflow-y:auto;border-top:1px solid var(--line)}
  .nav.is-open{display:flex}
  .nav a{padding:14px 16px;font-size:16px;border-radius:12px}
  .nav a.is-active::after{display:none}
  .nav a.is-active{background:var(--main-soft)}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:1fr;padding:44px 0 60px;gap:36px}
  .sidebar{position:static;top:auto;grid-template-columns:1fr 1fr;gap:18px}
  .mobile-toc{display:block}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:none}
  .cta-band{padding:42px 30px}
  .notice-bar{padding:24px 22px;gap:16px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:66px;gap:12px}
  .brand-text small{display:none}
  .nav{top:66px}
  html{scroll-padding-top:84px}
  .article-hero{padding:28px 0 34px}
  .article-title{font-size:28px;line-height:1.35}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px}
  .section{padding:52px 0}
  .sidebar{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .prevnext{grid-template-columns:1fr}
  .notice-bar{flex-direction:column;gap:14px}
  .cta-band{padding:34px 22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .header-actions .btn-sm{display:none}
  .article-title{font-size:25px}
  .meta-row{font-size:12.5px;gap:6px 16px}
  .article-tags{gap:8px}
  .tag-pill,.tag-neutral{font-size:12px}
}

/* roulang page: category1 */
:root{
  --main:#17B8A6;
  --main-deep:#0E8A7D;
  --main-soft:#E4F7F4;
  --accent:#FF7A59;
  --accent-soft:#FFE6DF;
  --bg:#FFFBF7;
  --bg-alt:#F4F7F5;
  --dark:#12292B;
  --line:#E7E2DA;
  --text:#1F2A2C;
  --muted:#5C6B6D;
  --r-card:18px;
  --r-block:26px;
  --r-pill:999px;
  --shadow:0 6px 20px rgba(18,41,43,.06);
  --shadow-hover:0 12px 32px rgba(18,41,43,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--main-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,251,247,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:none}
.brand:hover{color:var(--text)}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--main);position:relative;flex:none;box-shadow:0 6px 16px rgba(23,184,166,.35)}
.brand-mark::after{content:"";position:absolute;left:9px;top:8px;width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.78)}
.brand-text strong{display:block;font-size:17px;line-height:1.3;letter-spacing:.2px}
.brand-text small{display:block;font-size:11.5px;line-height:1.4;color:var(--muted);letter-spacing:.4px}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{position:relative;padding:8px 11px;font-size:15px;color:var(--text);border-radius:10px;transition:color .2s,background .2s}
.nav a:hover{color:var(--main-deep);background:rgba(23,184,166,.08)}
.nav a.is-active{color:var(--main-deep);font-weight:600}
.nav a.is-active::after{content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;border-radius:2px;background:var(--main)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);transition:transform .2s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;white-space:nowrap}
.btn-primary{background:var(--main);color:#fff;box-shadow:0 8px 20px rgba(23,184,166,.24)}
.btn-primary:hover{background:var(--main-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,138,125,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-ghost:hover{background:var(--accent-soft);color:var(--accent);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}

/* ============ generic section ============ */
.section{padding:78px 0}
.section--alt{background:var(--bg-alt)}
.section--white{background:#fff}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:1px;margin-bottom:10px}
.sec-head h2{font-size:clamp(23px,2.6vw,32px);line-height:1.32;font-weight:700;letter-spacing:-.3px;position:relative;padding-bottom:14px}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:4px;border-radius:2px;background:var(--main)}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15.5px}

/* ============ category head ============ */
.cat-head{position:relative;padding:42px 0 36px;background:var(--bg);border-bottom:1px solid var(--line);overflow:hidden}
.cat-head::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(23,184,166,.07);right:-110px;top:-160px;pointer-events:none}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--main-deep)}
.breadcrumb .sep{color:#CFC8BE}
.breadcrumb .cur{color:var(--main-deep);font-weight:600}
.cat-head h1{position:relative;z-index:1;font-size:clamp(27px,3.5vw,41px);line-height:1.28;font-weight:700;letter-spacing:-.5px;max-width:920px}
.cat-head h1 em{font-style:normal;color:var(--main-deep)}
.cat-desc{margin-top:16px;max-width:800px;font-size:16.5px;color:var(--muted);line-height:1.85}
.cat-stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:30px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--shadow)}
.cat-stats li{padding:18px 22px;border-right:1px solid var(--line)}
.cat-stats li:last-child{border-right:0}
.cat-stats strong{display:block;font-size:22px;font-weight:700;color:var(--main-deep);line-height:1.3;font-variant-numeric:tabular-nums}
.cat-stats span{display:block;font-size:13px;color:var(--muted);margin-top:3px;line-height:1.6}

/* ============ filter strip ============ */
.filter-strip{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:22px 0}
.filter-row{display:flex;align-items:flex-start;gap:16px;flex-wrap:wrap}
.filter-row + .filter-row{margin-top:14px}
.filter-label{flex:none;width:66px;padding-top:7px;font-size:13.5px;font-weight:600;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--text);transition:background .2s,border-color .2s,color .2s,transform .2s}
.chip:hover{border-color:var(--main);color:var(--main-deep);background:var(--main-soft);transform:translateY(-1px)}
.chip.is-on{background:var(--main);border-color:var(--main);color:#fff;font-weight:600}

/* ============ scene grid ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.scene-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CDEBE6}
.scene-card--wide{grid-column:span 2}
.scene-figure{position:relative;overflow:hidden;background:var(--bg-alt);aspect-ratio:16/10}
.scene-figure img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.scene-card:hover .scene-figure img{transform:scale(1.04)}
.scene-figure .tag-float{position:absolute;left:14px;top:14px;height:26px;display:inline-flex;align-items:center;padding:0 12px;border-radius:var(--r-pill);background:rgba(255,251,247,.94);color:var(--main-deep);font-size:12px;font-weight:600}
.scene-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.scene-body h3{font-size:18px;line-height:1.5;font-weight:600}
.scene-card--wide .scene-body h3{font-size:20px}
.scene-body p{font-size:14px;color:var(--muted);line-height:1.75}
.scene-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.dot{width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none}
.scene-foot .num{color:var(--main-deep);font-weight:700;font-variant-numeric:tabular-nums}

/* ============ lead block ============ */
.lead-grid{display:grid;grid-template-columns:7fr 5fr;gap:46px;align-items:center}
.lead-text h2{font-size:clamp(23px,2.6vw,32px);line-height:1.32;font-weight:700;letter-spacing:-.3px;position:relative;padding-bottom:14px;margin-bottom:20px}
.lead-text h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:4px;border-radius:2px;background:var(--main)}
.lead-text p{font-size:15.5px;color:var(--muted);line-height:1.85}
.lead-text p + p{margin-top:16px}
.lead-text strong{color:var(--text);font-weight:600}
.lead-figure{border-radius:var(--r-block);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--bg-alt)}
.lead-figure img{width:100%;aspect-ratio:4/3.1;object-fit:cover}
.lead-figure figcaption{padding:12px 18px 16px;font-size:12.5px;color:var(--muted);background:#fff;line-height:1.6}

/* ============ post list ============ */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.post-card{display:grid;grid-template-columns:186px 1fr;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CDEBE6}
.post-thumb{display:block;overflow:hidden;background:var(--bg-alt)}
.post-thumb img{width:100%;height:100%;min-height:176px;object-fit:cover;transition:transform .45s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:18px 20px;display:flex;flex-direction:column;gap:9px;min-width:0}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;width:max-content}
.badge-accent{background:var(--accent-soft);color:#C24B2C}
.badge-main{background:var(--main-soft);color:var(--main-deep)}
.post-body h3{font-size:16.5px;line-height:1.55;font-weight:600}
.post-body h3 a{color:var(--text)}
.post-card:hover h3 a{color:var(--main-deep)}
.post-body p{font-size:13.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:9px;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--muted)}
.read-more{margin-left:auto;color:var(--main-deep);font-weight:600;white-space:nowrap}
.read-more:hover{color:var(--accent)}
.empty-state{padding:56px 26px;text-align:center;background:var(--bg-alt);border:1px dashed #CFE3DF;border-radius:var(--r-block)}
.empty-state strong{display:block;font-size:17px;font-weight:600;margin-bottom:6px}
.empty-state span{display:block;font-size:14px;color:var(--muted)}

/* ============ steps strip ============ */
.steps-strip{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;box-shadow:var(--shadow)}
.step-item{display:flex;gap:14px;padding:26px 24px;border-right:1px solid var(--line)}
.step-item:last-child{border-right:0}
.step-num{flex:none;width:34px;height:34px;border-radius:10px;background:var(--main-soft);color:var(--main-deep);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.step-item h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:5px}
.step-item p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ============ channel grid ============ */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.channel-card{display:block;padding:20px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.channel-card:hover{transform:translateY(-2px);border-color:var(--main);box-shadow:var(--shadow-hover)}
.channel-card strong{display:block;font-size:15.5px;color:var(--text);font-weight:600}
.channel-card:hover strong{color:var(--main-deep)}
.channel-card span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.65}

/* ============ faq ============ */
.faq-wrap{border-top:1px solid var(--line)}
.faq-wrap details{border-bottom:1px solid var(--line)}
.faq-wrap summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 2px;font-size:16.5px;font-weight:600;cursor:pointer;list-style:none;transition:color .2s}
.faq-wrap summary:hover{color:var(--main-deep)}
.faq-wrap summary::-webkit-details-marker{display:none}
.faq-wrap summary::after{content:"";flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);position:relative;transition:transform .22s ease,border-color .22s ease}
.faq-wrap summary::before{content:"";position:absolute;right:0;width:0}
.faq-wrap summary .ico{display:none}
.faq-wrap summary::after{
  background:
    linear-gradient(var(--main-deep),var(--main-deep)) center/10px 2px no-repeat,
    linear-gradient(var(--main-deep),var(--main-deep)) center/2px 10px no-repeat;
}
.faq-wrap details[open] summary{color:var(--main-deep)}
.faq-wrap details[open] summary::after{transform:rotate(45deg);border-color:var(--main)}
.faq-a{padding:0 34px 22px 2px;font-size:15px;color:var(--muted);line-height:1.85;max-width:880px}

/* ============ cta band ============ */
.cta-band{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-block);padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band::before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:rgba(23,184,166,.16);right:-80px;bottom:-130px;pointer-events:none}
.cta-band::after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;background:rgba(255,122,89,.12);left:-60px;top:-70px;pointer-events:none}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(21px,2.5vw,29px);line-height:1.36;color:#fff;font-weight:700}
.cta-copy p{margin-top:10px;font-size:14.5px;color:#C9D6D4;line-height:1.75}
.cta-action{position:relative;z-index:1;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.cta-action small{font-size:12.5px;color:#9FB4B2}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:#C9D6D4;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#9FB4B2}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:#A9BDBA;max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13.5px;color:#C9D6D4}
.footer-col ul li a:hover{color:var(--main)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12.5px;color:#8FA5A3}

/* ============ responsive ============ */
@media (max-width:1199px){
  .scene-grid{grid-template-columns:repeat(3,1fr)}
  .channel-grid{grid-template-columns:repeat(3,1fr)}
  .post-card{grid-template-columns:160px 1fr}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;top:72px;left:-24px;right:-24px;margin-left:0;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    padding:14px 24px 22px;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-hover);
  }
  .nav.is-open{display:flex}
  .nav a{padding:12px 10px;font-size:16px}
  .nav a.is-active::after{display:none}
  .header-actions .btn{display:none}
  .section{padding:58px 0}
  .cat-stats{grid-template-columns:repeat(2,1fr)}
  .cat-stats li:nth-child(2){border-right:0}
  .cat-stats li:nth-child(1),.cat-stats li:nth-child(2){border-bottom:1px solid var(--line)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-card--wide{grid-column:span 2}
  .lead-grid{grid-template-columns:1fr;gap:28px}
  .post-grid{grid-template-columns:1fr}
  .post-card{grid-template-columns:220px 1fr}
  .steps-strip{grid-template-columns:1fr}
  .step-item{border-right:0;border-bottom:1px solid var(--line)}
  .step-item:last-child{border-bottom:0}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .nav{left:-18px;right:-18px;padding-left:18px;padding-right:18px}
  .cat-head{padding:30px 0 28px}
  .cat-desc{font-size:15.5px}
  .cat-stats strong{font-size:19px}
  .scene-grid{grid-template-columns:1fr}
  .scene-card--wide{grid-column:span 1}
  .post-card{grid-template-columns:1fr}
  .post-thumb img{min-height:0;aspect-ratio:16/9}
  .post-grid{gap:18px}
  .filter-label{width:100%;padding-top:0}
  .cta-band{padding:30px 22px;border-radius:20px}
  .cta-action{width:100%}
  .cta-action .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .section{padding:48px 0}
}
@media (max-width:480px){
  .brand-text strong{font-size:15.5px}
  .brand-text small{font-size:10.5px}
  .cat-head h1{font-size:25px}
  .sec-head h2,.lead-text h2{font-size:21px}
  .cat-stats li{padding:14px 16px}
  .channel-grid{grid-template-columns:1fr}
  .chip{height:32px;padding:0 13px;font-size:13px}
}