/* 51吃瓜官网公共样式 */
:root{--bg:#FFF8F0;--nav:rgba(38,20,12,.94);--title:#24130C;--brand:#FF6B35;--deep:#2B1A3F;--neon:#00E5B0;--gold:#FFD166;--rose:#B8336A;--pale:#E9FFF8;--pale-gold:#FFF1C7;--text:#2A1F1A;--muted:#75645A;--soft:#A9978C;--card:#fff;--dark:#24130C;--border:rgba(255,107,53,.18);--shadow:0 20px 46px rgba(97,45,16,.14);--gradient:linear-gradient(135deg,#FF6B35 0%,#FFB703 48%,#00E5B0 100%);--radius:24px;--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}img{max-width:100%;height:auto;display:block}a{color:inherit}button,a{font:inherit}h1,h2,h3{margin:0 0 .65em;color:var(--title);line-height:1.2}h1{font-size:clamp(2.6rem,6vw,5.7rem);letter-spacing:-.04em}h2{font-size:clamp(1.9rem,3.5vw,3.1rem)}h3{font-size:1.25rem}p{margin:0 0 1.05em}.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.section-space{padding:96px 0}.compact-top{padding-top:36px}.skip-link{position:fixed;left:16px;top:-80px;z-index:20000;background:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;width:100%;z-index:9999;background:var(--nav);backdrop-filter:blur(12px);box-shadow:0 8px 26px rgba(97,45,16,.16)}.header-inner{max-width:1280px;margin:0 auto;min-height:74px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:24px}.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;white-space:nowrap}.site-logo img{width:42px;max-height:44px;object-fit:contain}.site-logo strong{font-size:1.2rem;letter-spacing:.04em}.nav-core{display:flex;align-items:center;gap:6px}.nav-core a{color:#FFF3E8;text-decoration:none;border-radius:999px;padding:8px 12px;font-size:.95rem}.nav-core a:hover,.nav-core a.active{color:#fff;background:rgba(0,229,176,.16)}.header-actions{display:flex;align-items:center;gap:10px}.main-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 22px;border-radius:999px;text-decoration:none;font-weight:800;transition:.25s ease;border:0;cursor:pointer}.main-btn{background:var(--gradient);color:#fff;box-shadow:0 14px 32px 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.site-drawer{transform:translateX(0)}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.drawer-head .site-logo{color:var(--title)}.drawer-close{border:0;background:#FFF1E7;color:var(--title);width:42px;height:42px;border-radius:50%;font-size:1.8rem;cursor:pointer}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}.drawer-nav a{text-decoration:none;background:#FFF8F0;border:1px solid var(--border);padding:12px 14px;border-radius:14px;font-weight:700}.drawer-nav a:hover{background:var(--pale)}.drawer-note{margin-top:24px;padding:18px;border-radius:18px;background:var(--deep);color:#fff}.drawer-note p{margin:.35em 0 0;color:#eadff7;font-size:.92rem}.section-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--brand);font-size:.82rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.section-kicker:before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--brand),var(--neon));border-radius:9px}.section-heading{max-width:760px;margin-bottom:38px}.section-heading>p{color:var(--muted);font-size:1.05rem}.section-heading.light h2,.section-heading.light p{color:#fff}.hero{position:relative;overflow:hidden;padding:84px 0 70px;background:radial-gradient(circle at 12% 10%,rgba(255,209,102,.35),transparent 30%),radial-gradient(circle at 88% 22%,rgba(0,229,176,.26),transparent 28%),linear-gradient(135deg,#FFF0E6 0%,#F1EAFE 50%,#E8FFF8 100%)}.hero:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(184,51,106,.2);border-radius:50%;right:-80px;bottom:-130px}.hero-grid,.inner-hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:68px}.hero-copy{position:relative;z-index:2}.hero-copy h1 em{font-style:normal;color:var(--brand)}.hero-lead{font-size:clamp(1.08rem,2vw,1.3rem);color:#5d4a42;max-width:760px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.hero-notes{display:flex;flex-wrap:wrap;gap:10px}.hero-notes span{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.7);border:1px solid rgba(255,107,53,.14);padding:7px 12px;border-radius:999px;font-size:.88rem;font-weight:700}.hero-notes span:before{content:"✓";color:var(--brand)}.hero-visual,.inner-hero-media{position:relative;min-height:430px;display:grid;place-items:center}.hero-visual img,.inner-hero-media img{position:relative;z-index:2;max-height:520px;object-fit:contain;filter:drop-shadow(0 30px 38px rgba(43,26,63,.2))}.media-halo{position:absolute;width:82%;aspect-ratio:1;border-radius:50%;background:linear-gradient(135deg,rgba(255,107,53,.22),rgba(0,229,176,.18));filter:blur(2px)}.floating-card{position:absolute;z-index:3;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.7);border-radius:18px;padding:14px 16px;box-shadow:var(--shadow);font-weight:800}.floating-card.one{left:0;top:16%}.floating-card.two{right:0;bottom:12%}.highlight-strip{margin-top:-22px;position:relative;z-index:5}.highlight-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.highlight-item{padding:24px}.highlight-item+ .highlight-item{border-left:1px solid var(--border)}.highlight-item h3{margin-bottom:6px}.highlight-item p{font-size:.9rem;color:var(--muted);margin:0}.pill-nav{display:flex;flex-wrap:wrap;gap:12px}.pill-nav a{min-width:145px;flex:1;text-decoration:none;background:#fff;border:1px solid var(--border);border-radius:18px;padding:14px 16px;box-shadow:0 12px 30px rgba(97,45,16,.07)}.pill-nav strong{display:block;color:var(--title);margin-bottom:3px}.pill-nav span{display:block;color:var(--muted);font-size:.82rem}.brand-panel,.split-panel{display:grid;grid-template-columns:.95fr 1.05fr;gap:58px;align-items:center}.brand-media,.split-media{background:linear-gradient(135deg,#FFF1C7,#E9FFF8);border-radius:32px;padding:24px;box-shadow:var(--shadow)}.brand-media img,.split-media img{max-height:560px;margin:auto;object-fit:contain}.brand-copy p,.split-copy p,.prose-card p{color:var(--muted)}.feature-grid{display:grid;gap:20px}.three-col{grid-template-columns:repeat(3,1fr)}.two-col{grid-template-columns:repeat(2,1fr)}.card,.zone-card,.info-card,.review-card,.prose-card{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:22px}.zone-card{overflow:hidden}.zone-card img{width:100%;height:250px;object-fit:contain;background:linear-gradient(135deg,#FFF1E7,#E9FFF8);padding:14px}.zone-card-body{padding:26px}.zone-card-body p{color:var(--muted)}.info-card{padding:28px}.card-number{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--deep);color:var(--gold);font-weight:900;margin-bottom:18px}.text-link{display:inline-flex;color:var(--brand);font-weight:800;text-decoration:none}.text-link:hover{text-decoration:underline}.soft-zone{background:linear-gradient(180deg,rgba(233,255,248,.7),rgba(255,248,240,0))}.tri-zone{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.security-zone{display:grid;grid-template-columns:1fr 1fr;gap:24px}.security-card{position:relative;overflow:hidden;border-radius:26px;padding:30px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow)}.security-card.dark{background:var(--deep);color:#fff}.security-card.dark h2,.security-card.dark h3{color:#fff}.security-card p{color:var(--muted)}.security-card.dark p{color:#dfd5eb}.security-card img{height:250px;margin:12px auto 0;object-fit:contain}.review-grid{display:grid;gap:18px}.review-card{padding:26px}.review-card p{font-size:1.04rem}.review-card footer{color:var(--brand);font-weight:800}.review-card footer:before{content:"— "}.dark-zone{background:var(--dark);color:#fff}.dark-zone .review-card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);box-shadow:none}.dark-zone .review-card p{color:#fff}.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px;align-items:start}.faq-intro{position:sticky;top:110px}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:18px;padding:18px 20px;box-shadow:0 12px 30px rgba(97,45,16,.06)}.faq-item summary{cursor:pointer;font-weight:800;color:var(--title);list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";float:right;color:var(--brand);font-size:1.3rem}.faq-item[open] summary:after{content:"−"}.faq-item p{margin:12px 0 0;color:var(--muted)}.compliance-banner{display:grid;grid-template-columns:.9fr 1.4fr auto;gap:28px;align-items:center;padding:34px;border-radius:28px;background:linear-gradient(135deg,#2B1A3F,#4A235A 56%,#B8336A);color:#fff;box-shadow:0 24px 60px rgba(43,26,63,.25)}.compliance-banner h2{color:#fff}.compliance-banner p{margin:0;color:#f4eaf8}.inner-hero{background:radial-gradient(circle at 90% 10%,rgba(0,229,176,.2),transparent 32%),linear-gradient(135deg,#FFF3E8,#F3ECFF 54%,#EAFFF9)}.inner-hero h1{font-size:clamp(2.5rem,5vw,4.8rem)}.inner-hero-media{min-height:360px}.inner-hero-media img{max-height:440px}.prose-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start}.prose-card,.notice-card{padding:34px}.notice-card{border-radius:22px;background:var(--pale-gold);border:1px solid rgba(255,209,102,.5)}.notice-label{display:inline-block;background:var(--deep);color:#fff;border-radius:999px;padding:5px 12px;font-size:.78rem;font-weight:900;margin-bottom:15px}.step-list{counter-reset:steps;list-style:none;margin:24px 0 0;padding:0;display:grid;gap:15px}.step-list li{counter-increment:steps;display:grid;grid-template-columns:52px 1fr;column-gap:14px;align-items:start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--border)}.step-list li:before{content:counter(steps);grid-row:1/3;display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:var(--gradient);color:#fff;font-weight:900}.step-list strong,.step-list span{grid-column:2}.step-list span{color:var(--muted);font-size:.92rem}.site-footer{background:#1A0F0A;color:#FFF3E8;padding:72px 0 98px}.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:34px}.footer-grid h2{color:#fff;font-size:1rem;margin-bottom:18px}.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;gap:8px}.footer-grid a{text-decoration:none;color:#eadbd2}.footer-grid a:hover{color:var(--neon)}.footer-brand p{color:#cbb9ae;max-width:500px}.footer-brand .main-btn{color:#fff;width:max-content}.footer-logo{margin-bottom:18px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:46px;padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:#baa79e;font-size:.86rem}.footer-bottom div{display:flex;gap:15px}.mobile-quick-nav{display:none}.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.main-btn,.secondary-btn{transition:none}}
@media (max-width:1040px){.nav-core a:nth-child(3),.nav-core a:nth-child(4){display:none}.hero-grid,.inner-hero-grid,.brand-panel,.split-panel{gap:36px}.three-col,.tri-zone{grid-template-columns:repeat(2,1fr)}.highlight-grid{grid-template-columns:repeat(2,1fr)}.highlight-item:nth-child(3){border-left:0;border-top:1px solid var(--border)}.highlight-item:nth-child(4){border-top:1px solid var(--border)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.footer-grid>div:last-child{grid-column:2/4}.compliance-banner{grid-template-columns:1fr 1fr}.compliance-banner .main-btn{grid-column:1/3;width:max-content}}
@media (max-width:760px){body{padding-bottom:72px}.container{width:min(calc(100% - 28px),var(--max))}.section-space{padding:68px 0}.compact-top{padding-top:24px}.header-inner{min-height:64px;padding:0 12px;gap:8px}.mobile-only{display:flex}.desktop-menu,.nav-core{display:none}.site-logo strong{display:none}.header-cta{min-height:40px;padding:8px 15px;font-size:.88rem}.hero{padding:58px 0 48px}.hero-grid,.inner-hero-grid,.brand-panel,.split-panel,.prose-grid,.faq-layout{grid-template-columns:1fr}.hero-visual,.inner-hero-media{min-height:300px}.hero-visual img,.inner-hero-media img{max-height:360px}.floating-card{font-size:.78rem;padding:10px 12px}.highlight-strip{margin-top:0;padding-top:18px}.highlight-grid,.three-col,.two-col,.tri-zone,.security-zone,.review-grid,.footer-grid{grid-template-columns:1fr}.highlight-item+ .highlight-item{border-left:0;border-top:1px solid var(--border)}.pill-nav{display:grid;grid-template-columns:1fr 1fr}.pill-nav a{min-width:0}.zone-card img{height:220px}.faq-intro{position:static}.compliance-banner{grid-template-columns:1fr;padding:26px}.compliance-banner .main-btn{grid-column:1;width:max-content}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column}.site-footer{padding-bottom:44px}.mobile-quick-nav{position:fixed;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(4,1fr);z-index:9000;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.mobile-quick-nav a{text-decoration:none;text-align:center;padding:8px 4px;color:var(--muted);font-size:.75rem}.mobile-quick-nav span{display:block;color:var(--brand);font-size:1.1rem;line-height:1.1}.drawer-nav{grid-template-columns:1fr}.drawer-note{margin-bottom:24px}.step-list li{grid-template-columns:46px 1fr}.prose-card,.notice-card,.info-card{padding:24px}}
@media (max-width:420px){h1{font-size:2.5rem}.pill-nav{grid-template-columns:1fr}.hero-actions{display:grid}.hero-actions a{width:100%}.site-drawer{width:94vw}.footer-bottom div{flex-wrap:wrap}}