:root{
  --bg:#f7f4ef;
  --paper:#fffdf9;
  --ink:#151515;
  --muted:#68645e;
  --line:rgba(20,20,20,.12);
  --soft:rgba(255,255,255,.72);
  --accent:#b89b66;
  --radius:28px;
  --shadow:0 24px 80px rgba(30,28,24,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:10;background:rgba(247,244,239,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.header-inner{width:min(1180px,92vw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0 12px}
.brand-logo{display:flex;align-items:center;gap:12px}
.main-nav{display:flex;gap:22px;align-items:center;font-size:14px;color:var(--muted)}
.main-nav a{position:relative;padding:8px 0;white-space:nowrap}
.main-nav a:after{content:"";position:absolute;left:0;bottom:2px;width:0;height:1px;background:var(--ink);transition:width .25s ease}
.main-nav a:hover:after{width:100%}
.nav-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:8px 14px}
.site-search{width:min(1180px,92vw);margin:0 auto 14px;display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;background:rgba(255,255,255,.58);border:1px solid var(--line);border-radius:999px;padding:10px 12px 10px 22px}
.site-search label{font-size:13px;color:var(--muted);white-space:nowrap}
.site-search input{border:0;background:transparent;outline:none;font-size:15px;min-width:0;color:var(--ink)}
.site-search button,.contact-form button,.btn{border:1px solid var(--ink);background:var(--ink);color:#fff;border-radius:999px;padding:12px 22px;font-weight:600;cursor:pointer;transition:transform .25s ease,background .25s ease,color .25s ease}
.site-search button{padding:9px 16px;font-size:13px}
.site-search button:hover,.contact-form button:hover,.btn:hover{transform:translateY(-2px)}
.search-tip{grid-column:1/-1;margin:0;padding-left:2px;font-size:12px;color:var(--muted);display:none}.search-tip.active{display:block}
.hero-section{width:min(1180px,92vw);min-height:72vh;margin:0 auto;padding:88px 0 72px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.65fr);gap:56px;align-items:center}
.eyebrow{letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-size:13px;font-weight:700;margin:0 0 14px}
h1,h2,h3{line-height:1.16;margin:0;color:var(--ink);letter-spacing:-.02em}
h1{font-size:clamp(42px,7vw,82px);font-weight:800;max-width:880px}
h2{font-size:clamp(28px,4vw,48px);font-weight:760}h3{font-size:22px;font-weight:720}.hero-text{font-size:20px;max-width:740px;color:var(--muted);margin:26px 0 34px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap}.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}.domain-note{font-size:13px;color:var(--muted);margin-top:18px}
.hero-panel{background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(255,255,255,.38));border:1px solid var(--line);border-radius:42px;padding:28px;box-shadow:var(--shadow);display:grid;gap:18px}.hero-panel div{padding:24px;border-radius:28px;background:rgba(255,255,255,.66);border:1px solid rgba(20,20,20,.08)}.hero-panel strong{font-size:38px;display:block;letter-spacing:-.04em}.hero-panel span{color:var(--muted);font-size:14px}
.section{width:min(1180px,92vw);margin:0 auto;padding:82px 0}.section-heading{display:grid;grid-template-columns:.85fr 1fr;gap:44px;align-items:end;margin-bottom:34px}.section-heading.compact{display:block;max-width:780px}.section-heading p{color:var(--muted);margin:12px 0 0}.wide-figure,.side-figure{margin:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.wide-figure img{aspect-ratio:16/8;object-fit:cover}.side-figure img{aspect-ratio:4/3;object-fit:cover}.wide-figure figcaption,.side-figure figcaption{font-size:13px;color:var(--muted);padding:14px 18px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.service-card,.testimonial-card,.article-list article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 16px 48px rgba(30,28,24,.06)}.service-card span{display:inline-block;color:var(--accent);font-size:13px;font-weight:700;margin-bottom:20px}.service-card p,.video-body p,.testimonial-card p,.article-list p{color:var(--muted)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.small-grid{grid-template-columns:repeat(3,1fr)}.video-card{background:var(--paper);border:1px solid var(--line);border-radius:32px;overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}.video-card:hover{transform:translateY(-6px);box-shadow:0 30px 90px rgba(30,28,24,.16)}.video-frame{position:relative;overflow:hidden;cursor:pointer;background:#111}.video-frame img{aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease,opacity .35s ease}.video-card:hover .video-frame img{transform:scale(1.04);opacity:.78}.play-mark{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.94);width:78px;height:78px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.9);color:var(--ink);font-size:14px;font-weight:700;opacity:0;transition:opacity .25s ease,transform .25s ease}.video-card:hover .play-mark,.video-frame:focus .play-mark,.video-card.is-active .play-mark{opacity:1;transform:translate(-50%,-50%) scale(1)}.video-body{padding:24px}.video-category{color:var(--accent)!important;font-size:13px;font-weight:700;margin:0 0 8px}.metric-row,.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.metric-row span,.tag-row span{font-size:12px;color:var(--muted);background:#f1ede6;border:1px solid rgba(20,20,20,.08);border-radius:999px;padding:5px 10px}
.stats-section{background:rgba(255,255,255,.42);border-top:1px solid var(--line);border-bottom:1px solid var(--line);width:100%;max-width:none;padding-left:4vw;padding-right:4vw}.stats-section .section-heading,.stats-grid{width:min(1180px,92vw);margin-left:auto;margin-right:auto}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stats-grid div{border:1px solid var(--line);border-radius:28px;padding:28px;background:rgba(255,255,255,.66)}.stats-grid strong{display:block;font-size:42px;line-height:1;color:var(--ink)}.stats-grid span{color:var(--muted)}
.testimonial-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.testimonial-card{margin:0}.testimonial-card cite{display:block;color:var(--accent);font-style:normal;font-weight:700;margin-top:18px}.faq-list{display:grid;gap:12px}.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:20px 24px}.faq-list summary{cursor:pointer;font-weight:700}.faq-list p{color:var(--muted);margin-bottom:0}.contact-section{display:grid;grid-template-columns:.8fr 1fr;gap:44px;align-items:start}.contact-form{background:var(--paper);border:1px solid var(--line);border-radius:32px;padding:28px;box-shadow:var(--shadow);display:grid;gap:18px}.contact-form label{display:grid;gap:8px;font-weight:700}.contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:18px;background:#fbf8f2;padding:14px 16px;font:inherit;outline:none}.contact-form p{color:var(--muted);font-size:13px;margin:0}
.breadcrumb{width:min(1180px,92vw);margin:32px auto 0;display:flex;gap:10px;color:var(--muted);font-size:14px}.sub-hero{width:min(1180px,92vw);margin:0 auto;padding:82px 0 52px}.sub-hero p{max-width:760px;color:var(--muted);font-size:18px}.split-section{display:grid;grid-template-columns:1fr .9fr;gap:44px;align-items:center}.article-list{display:grid;gap:16px}.plan-section pre{white-space:pre-wrap;word-break:break-word;background:#141414;color:#f7f4ef;border-radius:24px;padding:22px;overflow:auto}.plan-section h2{font-size:28px;margin-top:34px}
.site-footer{background:#111;color:#f7f4ef;margin-top:70px}.footer-grid{width:min(1180px,92vw);margin:0 auto;padding:58px 0;display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:44px}.site-footer p,.site-footer li{color:rgba(247,244,239,.72)}.site-footer h2{font-size:20px;color:#fff}.site-footer ul{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:8px}.footer-bottom{width:min(1180px,92vw);margin:0 auto;padding:18px 0 28px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:20px;color:rgba(247,244,239,.72)}
@media (max-width:960px){.main-nav{display:none;position:absolute;left:4vw;right:4vw;top:72px;background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.main-nav.is-open{display:flex}.nav-toggle{display:block}.site-search{grid-template-columns:1fr;border-radius:24px}.hero-section,.section-heading,.contact-section,.split-section{grid-template-columns:1fr}.service-grid,.video-grid,.small-grid,.stats-grid,.testimonial-grid,.footer-grid{grid-template-columns:1fr 1fr}.hero-section{padding-top:52px;min-height:auto}.testimonial-grid{grid-template-columns:1fr}}
@media (max-width:620px){h1{font-size:38px}.hero-text{font-size:17px}.section{padding:56px 0}.service-grid,.video-grid,.small-grid,.stats-grid,.testimonial-grid,.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.header-inner{padding-top:14px}.site-search label{display:none}.hero-panel strong{font-size:32px}}