*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;color:#2a1a1a;line-height:1.7;background:#fff;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
:root{--red:#e01327;--red-dark:#b30f1e;--red-soft:#fff0f1;--ink:#2a1215;--gray:#6b5c5e;--line:#f3d7da}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-soft{background:linear-gradient(180deg,#fff 0%,#fff5f6 100%)}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--red);background:var(--red-soft);padding:6px 16px;border-radius:999px;margin-bottom:16px}
h2.title{font-size:34px;line-height:1.3;font-weight:800;color:var(--ink);margin-bottom:14px}
p.sub{color:var(--gray);font-size:16px;max-width:760px;margin-bottom:40px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:10px;font-weight:700;font-size:15px;transition:.25s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,var(--red),#ff4b5c);color:#fff;box-shadow:0 8px 20px rgba(224,19,39,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(224,19,39,.4)}
.btn-ghost{background:#fff;color:var(--red);border:1.5px solid var(--red)}
.btn-ghost:hover{background:var(--red-soft);transform:translateY(-2px)}
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0}
.ai-page-logo{max-height:42px;width:auto}
.logo-text{font-weight:800;font-size:19px;color:var(--red);letter-spacing:1px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{font-size:14px;font-weight:600;color:#4a3336;padding:8px 11px;border-radius:8px;white-space:nowrap;transition:.2s}
.nav-links a:hover{color:var(--red);background:var(--red-soft)}
.nav-cta{flex-shrink:0}
.nav-cta .btn{padding:10px 20px;font-size:13px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.menu-toggle span{width:24px;height:2.5px;background:var(--red);border-radius:2px;transition:.3s}
.hero{position:relative;background:radial-gradient(circle at 12% 20%,#ff4056 0%,#e01327 42%,#9c0c19 100%);color:#fff;padding:90px 0 100px;overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);opacity:.18;background:radial-gradient(circle,#fff,transparent 70%)}
.hero::before{width:520px;height:520px;top:-160px;right:-120px}
.hero::after{width:380px;height:380px;bottom:-160px;left:-100px}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:24px}
.hero h1{font-size:46px;line-height:1.22;font-weight:900;letter-spacing:.5px;margin-bottom:22px}
.hero h1 em{font-style:normal;color:#ffe08a}
.hero p.lead{font-size:17px;opacity:.94;max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:34px}
.hero-actions .btn-primary{background:#fff;color:var(--red);box-shadow:0 10px 26px rgba(0,0,0,.22)}
.hero-actions .btn-primary:hover{background:#fff8f8}
.hero-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.14)}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:28px;font-weight:900}
.hero-stat span{font-size:13px;opacity:.8}
.hero-panel{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);border-radius:20px;padding:26px;backdrop-filter:blur(6px);animation:floatY 6s ease-in-out infinite}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.hero-panel h3{font-size:16px;margin-bottom:16px;font-weight:800}
.model-chip{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;background:rgba(255,255,255,.12);border-radius:10px;margin-bottom:10px;font-size:14px}
.model-chip small{opacity:.7;font-size:12px}
.model-chip .dots{width:8px;height:8px;border-radius:50%;background:#6dffa8;box-shadow:0 0 8px #6dffa8}
.metrics{padding:56px 0;background:#fff}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 22px;text-align:center;transition:.3s}
.metric-card:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(224,19,39,.14);border-color:#f7b6bd}
.metric-card b{display:block;font-size:32px;font-weight:900;color:var(--red);margin-bottom:6px}
.metric-card span{font-size:14px;color:var(--gray)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 24px;transition:.3s;position:relative;overflow:hidden}
.svc-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--red),#ff8a96);transform:scaleX(0);transform-origin:left;transition:.3s}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(224,19,39,.13)}
.svc-card:hover::after{transform:scaleX(1)}
.svc-ico{width:48px;height:48px;border-radius:12px;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:900;margin-bottom:16px}
.svc-card h3{font-size:18px;font-weight:800;margin-bottom:10px;color:var(--ink)}
.svc-card p{font-size:14px;color:var(--gray)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;position:relative}
.step::before{counter-increment:step;content:"0" counter(step);font-size:34px;font-weight:900;color:#ffe0e3;display:block;line-height:1;margin-bottom:12px}
.step h3{font-size:17px;font-weight:800;margin-bottom:8px}
.step p{font-size:14px;color:var(--gray)}
.table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid #f7e4e6}
th{background:var(--red-soft);color:var(--red-dark);font-weight:800;font-size:14px}
tbody tr:hover{background:#fffafb}
td.pos{color:#0a9e5a;font-weight:700}
td.neg{color:#b0a0a2}
.rating-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px;box-shadow:0 20px 50px rgba(224,19,39,.08)}
.rating-score b{font-size:64px;font-weight:900;color:var(--red);line-height:1}
.rating-score span{display:block;font-size:15px;color:var(--gray);margin-top:8px}
.stars{color:#ffb400;font-size:22px;letter-spacing:3px;margin:12px 0}
.adv-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.adv-item{display:flex;align-items:flex-start;gap:10px;font-size:14px;font-weight:600;color:#4a3336}
.adv-item i{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;font-weight:900;margin-top:2px}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{border-radius:16px;overflow:hidden;background:#fff;border:1px solid var(--line);transition:.3s}
.case-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(224,19,39,.14)}
.case-card .thumb{aspect-ratio:4/3;overflow:hidden;background:#fde8ea}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.case-card:hover .thumb img{transform:scale(1.05)}
.case-card .body{padding:22px}
.case-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.case-card p{font-size:13.5px;color:var(--gray)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag{padding:8px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:#5a3f42;transition:.2s}
.tag:hover{background:var(--red);color:#fff;border-color:var(--red);transform:translateY(-2px)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px 26px;transition:.3s;position:relative}
.price-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(224,19,39,.14)}
.price-card.hot{border-color:var(--red);box-shadow:0 16px 40px rgba(224,19,39,.16)}
.hot-badge{position:absolute;top:-13px;right:24px;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:4px 14px;border-radius:999px}
.price-card h3{font-size:18px;font-weight:800;margin-bottom:6px}
.price-card .price{font-size:34px;font-weight:900;color:var(--red);margin:12px 0 4px}
.price-card .price small{font-size:14px;color:var(--gray);font-weight:600}
.price-card ul{list-style:none;margin:18px 0 24px}
.price-card li{font-size:14px;color:#5a3f42;padding:7px 0;padding-left:22px;position:relative}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--red);font-weight:900}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:.3s}
.review-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(224,19,39,.12)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--red),#ff7a86);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex-shrink:0}
.review-head b{display:block;font-size:15px}
.review-head span{font-size:12.5px;color:var(--gray)}
.review-card p{font-size:14px;color:#4a3336}
.review-stars{color:#ffb400;font-size:14px;letter-spacing:2px;margin-top:10px}
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:.2s}
.faq-item.active{border-color:var(--red);box-shadow:0 10px 30px rgba(224,19,39,.1)}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 24px;font-size:16px;font-weight:700;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit}
.faq-q .ic{width:24px;height:24px;flex-shrink:0;border-radius:50%;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900;transition:.3s}
.faq-item.active .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px;color:var(--gray);font-size:14.5px}
.faq-item.active .faq-a{max-height:320px;padding-bottom:20px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;transition:.3s}
.article-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(224,19,39,.12);border-color:#f7b6bd}
.article-card .cat{font-size:12px;color:var(--red);font-weight:700;letter-spacing:1px}
.article-card h3{font-size:16px;font-weight:800;margin:10px 0;line-height:1.5}
.article-card p{font-size:13.5px;color:var(--gray);margin-bottom:14px}
.article-card a.more{font-size:13px;color:var(--red);font-weight:700}
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--red),#ffb6bd)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item::before{content:"";position:absolute;left:-30px;top:4px;width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--red);box-shadow:0 0 0 4px #ffe3e6}
.tl-item h3{font-size:17px;font-weight:800;margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--gray)}
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.net-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center;transition:.3s}
.net-card:hover{border-color:#f7b6bd;transform:translateY(-4px);box-shadow:0 14px 30px rgba(224,19,39,.1)}
.net-card b{display:block;font-size:16px;color:var(--ink);margin-bottom:6px}
.net-card span{font-size:13px;color:var(--gray)}
.form-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.form-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:36px;box-shadow:0 20px 50px rgba(224,19,39,.08)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;padding:13px 16px;border:1px solid #eccfd2;border-radius:10px;font-size:14px;font-family:inherit;color:var(--ink);background:#fffdfd;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px rgba(224,19,39,.1)}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:12.5px;color:var(--gray);margin-top:10px}
.contact-info{display:flex;flex-direction:column;gap:18px}
.ci-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.ci-ic{width:42px;height:42px;flex-shrink:0;border-radius:10px;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:16px}
.ci-item b{display:block;font-size:15px;margin-bottom:3px}
.ci-item span{font-size:13.5px;color:var(--gray);word-break:break-all}
.qr-box{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.qr-box img{width:104px;height:104px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.friend-links{display:flex;flex-wrap:wrap;gap:10px}
.friend-links a{font-size:13px;color:var(--gray);padding:7px 14px;background:#fff;border:1px solid var(--line);border-radius:999px;transition:.2s}
.friend-links a:hover{color:#fff;background:var(--red);border-color:var(--red)}
footer{background:#2a1215;color:#d8c6c8;padding:60px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:40px}
.foot-brand .logo-text{color:#fff;font-size:20px;margin-bottom:14px;display:block}
.foot-brand p{font-size:13.5px;color:#b6a0a3;max-width:300px}
.foot h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px}
.foot ul{list-style:none}
.foot li{margin-bottom:10px}
.foot li a{font-size:13.5px;color:#c3acae;transition:.2s}
.foot li a:hover{color:#fff}
.foot-bottom{border-top:1px solid #4a2b2f;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:#a89193}
.float-bar{position:fixed;right:20px;bottom:26px;z-index:120;display:flex;flex-direction:column;gap:12px}
.float-btn{width:52px;height:52px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(224,19,39,.4);cursor:pointer;border:none;transition:.25s;font-size:13px;font-weight:800}
.float-btn:hover{transform:translateY(-3px);background:var(--red-dark)}
.float-btn svg{width:24px;height:24px;fill:#fff}
#backTop{opacity:0;pointer-events:none}
#backTop.show{opacity:1;pointer-events:auto}
.kefu-pop{position:fixed;right:84px;bottom:26px;z-index:121;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:0 16px 40px rgba(224,19,39,.2);display:none}
.kefu-pop.show{display:block}
.kefu-pop img{width:150px;height:150px;object-fit:cover;border-radius:8px}
.kefu-pop p{font-size:12px;color:var(--gray);text-align:center;margin-top:8px}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.chart{display:flex;align-items:flex-end;gap:14px;height:180px;padding:20px 24px;background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:26px}
.bar{flex:1;background:linear-gradient(180deg,#ff6b78,var(--red));border-radius:8px 8px 0 0;position:relative;transition:height 1s ease;display:flex;align-items:flex-end;justify-content:center}
.bar span{position:absolute;bottom:-24px;font-size:12px;color:var(--gray);white-space:nowrap}
.bar b{position:absolute;top:-24px;font-size:12px;color:var(--red);font-weight:800;width:100%;text-align:center}
.compare-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.cm-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center}
.cm-card b{display:block;font-size:22px;color:var(--red);font-weight:900}
.cm-card span{font-size:13px;color:var(--gray)}
@media (max-width:1024px){
.hero-grid{grid-template-columns:1fr;gap:36px}
.hero h1{font-size:38px}
.metric-grid{grid-template-columns:repeat(2,1fr)}
.card-grid,.case-grid,.price-grid,.review-grid,.article-grid,.net-grid{grid-template-columns:repeat(2,1fr)}
.steps{grid-template-columns:repeat(2,1fr)}
.rating-card{grid-template-columns:1fr}
.form-wrap{grid-template-columns:1fr}
.foot-grid{grid-template-columns:1fr 1fr}
.nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px;border-bottom:1px solid var(--line);box-shadow:0 16px 30px rgba(0,0,0,.08);gap:0;max-height:70vh;overflow-y:auto}
.nav-links.open{display:flex}
.nav-links a{padding:12px 16px}
.menu-toggle{display:flex}
.nav-cta{display:none}
}
@media (max-width:640px){
.section{padding:56px 0}
h2.title{font-size:26px}
.hero{padding:60px 0 70px}
.hero h1{font-size:30px}
.hero p.lead{font-size:15px}
.hero-stat b{font-size:22px}
.metric-grid,.card-grid,.case-grid,.price-grid,.review-grid,.article-grid,.net-grid,.steps,.form-row,.adv-list,.compare-mini{grid-template-columns:1fr}
.rating-card{padding:26px}
.rating-score b{font-size:48px}
.form-box{padding:24px}
.foot-grid{grid-template-columns:1fr}
.foot-bottom{flex-direction:column}
.hero-actions .btn{width:100%;justify-content:center}
.float-bar{right:14px;bottom:18px}
.kefu-pop{right:74px;bottom:18px}
}