:root{--bg:#fff8f4;--card:#ffffff;--card2:#fff1ec;--line:#f2c1b8;--text:#241816;--muted:#6f5a54;--brand:#c9161d;--brand2:#ff5b31;--shadow:0 18px 50px rgba(201,22,29,.12);--radius:22px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top,#fff1eb 0,#fff8f4 34%,#fffdfc 100%);color:var(--text);line-height:1.65}
    a{color:var(--brand);text-decoration:none}img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:40;background:rgba(255,248,244,.88);backdrop-filter:blur(12px);border-bottom:1px solid rgba(201,22,29,.08)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{width:42px;height:42px;object-fit:contain}.brand strong{display:block;font-size:1rem}.brand span{display:block;font-size:.82rem;color:var(--muted)}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:.92rem;color:var(--text);padding:8px 10px;border-radius:10px}
    nav a:hover,nav a.active{background:rgba(201,22,29,.08);color:var(--brand)}
    .hero{padding:36px 0 24px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.panel,.faq-item,.review,.article,.step,.metric,.price-item,.compare,.form-card,.contact-card{background:linear-gradient(180deg,#fff 0,#fffaf8 100%);border:1px solid rgba(201,22,29,.12);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:32px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:999px;background:linear-gradient(135deg,rgba(201,22,29,.15),rgba(255,91,49,.05));filter:blur(2px)}
    .hero-main:before{width:220px;height:220px;right:-70px;top:-80px}.hero-main:after{width:140px;height:140px;left:-30px;bottom:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(201,22,29,.08);color:var(--brand);padding:7px 12px;border-radius:999px;font-size:.86rem;font-weight:700}
    h1{margin:14px 0 12px;font-size:clamp(2rem,4vw,3.55rem);line-height:1.05;letter-spacing:-.03em}
    .lead{font-size:1.02rem;color:var(--muted);max-width:58ch;margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.22s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 26px rgba(201,22,29,.24)}
    .btn-secondary{background:#fff;color:var(--brand);border-color:rgba(201,22,29,.18)}
    .btn:hover{transform:translateY(-2px)}
    .hero-side{padding:22px;display:grid;gap:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:16px;background:linear-gradient(180deg,#fff 0,#fff6f3 100%)}
    .metric strong{display:block;font-size:1.5rem;color:var(--brand)}.metric span{font-size:.88rem;color:var(--muted)}
    section{padding:18px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-title h2{margin:0;font-size:clamp(1.35rem,2vw,2rem)}.section-title p{margin:0;color:var(--muted);max-width:60ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card,.panel,.review,.article,.step,.price-item,.compare,.form-card,.contact-card{padding:20px}
    .card h3,.panel h3,.review h3,.article h3,.step h3,.price-item h3{margin:0 0 8px;font-size:1.05rem}
    .muted{color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag-cloud span{background:#fff;border:1px solid rgba(201,22,29,.12);padding:8px 12px;border-radius:999px;font-size:.9rem}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step .num{display:inline-flex;width:34px;height:34px;border-radius:11px;align-items:center;justify-content:center;background:rgba(201,22,29,.1);color:var(--brand);font-weight:800;margin-bottom:10px}
    table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden}th,td{padding:14px 12px;text-align:left;border-bottom:1px solid rgba(201,22,29,.08)}th{background:#fff2ef;color:#7b241f;font-size:.92rem}tr:last-child td{border-bottom:none}
    .scroll-x{overflow-x:auto;border-radius:18px}
    details{border-top:1px solid rgba(201,22,29,.12);padding:14px 0}details:first-child{border-top:none}summary{cursor:pointer;font-weight:700;list-style:none}summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";float:right;color:var(--brand)}details[open] summary:after{content:"－"}
    .review-stars{color:#e08b00;font-size:1.1rem;margin-bottom:8px}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .article a{font-weight:700}
    .form-card form{display:grid;gap:12px}.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid rgba(201,22,29,.16);border-radius:14px;background:#fff;color:var(--text);font:inherit}
    textarea{min-height:118px;resize:vertical}
    footer{margin-top:14px;background:#fff3ef;color:#4b322c;border-top:1px solid rgba(201,22,29,.12)}
    .footer-inner{padding:22px 0;display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}.footer-links a{background:#fff;border:1px solid rgba(201,22,29,.12);padding:8px 11px;border-radius:999px}
    .float-tools{position:fixed;right:14px;bottom:14px;z-index:50;display:grid;gap:10px}.float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:none;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:grid;place-items:center;box-shadow:0 14px 30px rgba(201,22,29,.26);cursor:pointer}
    .fade-in{opacity:0;transform:translateY(18px);transition:.6s ease}.fade-in.show{opacity:1;transform:none}
    .kv{display:grid;grid-template-columns:1fr 1fr;gap:12px}.kv div{background:#fff;border:1px dashed rgba(201,22,29,.18);border-radius:16px;padding:14px}
    .compare-highlight{background:#fff4ef;font-weight:700}
    @media (max-width: 960px){.hero-grid,.grid-3,.grid-2,.steps,.article-list,.footer-inner{grid-template-columns:1fr}.hero{padding-top:22px}.menu-btn{display:inline-flex}.nav-wrap{display:none;width:100%}.nav-wrap.open{display:block}.topbar{flex-wrap:wrap}.brand{flex:1}.metric-grid,.form-row,.kv{grid-template-columns:1fr 1fr}}
    @media (max-width: 640px){.container{width:min(100% - 22px,1180px)}.hero-main,.card,.panel,.review,.article,.step,.price-item,.compare,.form-card,.contact-card{padding:16px}h1{font-size:2rem}.hero-actions{flex-direction:column}.btn{width:100%}.metric-grid,.form-row,.kv{grid-template-columns:1fr}.section-title{align-items:start;flex-direction:column}}