*{margin:0;padding:0;box-sizing:border-box}
:root{
--red:#d81e2c;
--red-deep:#a5141f;
--red-soft:#fdeef0;
--red-line:#f3c9ce;
--ink:#1f1c1c;
--ink-2:#4a4444;
--ink-3:#7a7272;
--bg:#fffaf9;
--bg-2:#fff3f1;
--card:#ffffff;
--line:#f0dcdd;
--radius:16px;
--shadow-sm:0 4px 16px rgba(168,20,32,.06);
--shadow-md:0 12px 32px rgba(168,20,32,.10);
--shadow-lg:0 22px 50px rgba(168,20,32,.16);
}
html{scroll-behavior:smooth}
body{
font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
background:
radial-gradient(1200px 500px at 85% -5%, #ffe3e5 0%, rgba(255,227,229,0) 60%),
radial-gradient(900px 420px at 5% 8%, #fff0ec 0%, rgba(255,240,236,0) 55%),
linear-gradient(180deg,#fffaf9 0%,#fff6f4 40%,#fffaf9 100%);
background-attachment:fixed;
color:var(--ink);
line-height:1.65;
-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,250,249,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(168,20,32,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:38px;width:auto}
.brand-name{font-size:19px;font-weight:800;color:var(--red-deep);letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{padding:8px 12px;font-size:14.5px;color:var(--ink-2);font-weight:500;border-radius:8px;transition:color .2s,background .2s;position:relative}
.nav-links a:hover{color:var(--red);background:var(--red-soft)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:700;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;font-family:inherit;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--red) 0%,var(--red-deep) 100%);color:#fff;box-shadow:0 6px 18px rgba(216,30,44,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(216,30,44,.42)}
.btn-ghost{background:#fff;color:var(--red-deep);border:1.5px solid var(--red-line)}
.btn-ghost:hover{background:var(--red-soft);transform:translateY(-2px)}
.btn-lg{padding:14px 30px;font-size:16px;border-radius:12px}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;border-radius:8px}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--red-deep);border-radius:2px;margin:5px 0;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
.mobile-menu{display:none;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:11px 12px;font-size:15px;color:var(--ink-2);font-weight:500;border-radius:8px}
.mobile-menu a:hover{background:var(--red-soft);color:var(--red)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero-bg-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(216,30,44,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(216,30,44,.05) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 78%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 78%)}
.hero-orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none}
.orb-1{width:360px;height:360px;background:#ffb3bc;top:-80px;right:-60px;animation:float 12s ease-in-out infinite}
.orb-2{width:280px;height:280px;background:#ffd5b8;bottom:-60px;left:-50px;animation:float 15s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(24px,-32px)}}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;background:var(--red-soft);color:var(--red-deep);border:1px solid var(--red-line);border-radius:999px;font-size:13px;font-weight:600;margin-bottom:20px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 0 0 rgba(216,30,44,.5);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(216,30,44,.45)}70%{box-shadow:0 0 0 10px rgba(216,30,44,0)}100%{box-shadow:0 0 0 0 rgba(216,30,44,0)}}
.hero h1{font-size:44px;line-height:1.24;font-weight:900;letter-spacing:-.5px;color:var(--ink);margin-bottom:18px}
.hero h1 .hl{color:var(--red);position:relative;white-space:nowrap}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:10px;background:rgba(216,30,44,.16);z-index:-1;border-radius:4px}
.hero-desc{font-size:16.5px;color:var(--ink-2);line-height:1.8;max-width:540px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-tags span{padding:6px 13px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--ink-2);font-weight:500;box-shadow:var(--shadow-sm)}
.hero-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow-md);position:relative}
.hero-panel::before{content:"";position:absolute;inset:-1px;border-radius:22px;padding:1px;background:linear-gradient(135deg,var(--red-line),transparent 55%,var(--red-line));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.panel-title{font-size:14px;font-weight:700;color:var(--red-deep);letter-spacing:1px;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.panel-title::before{content:"";width:4px;height:15px;background:var(--red);border-radius:2px}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-cell{background:var(--bg-2);border-radius:12px;padding:16px 14px;border:1px solid var(--line)}
.stat-cell .num{font-size:26px;font-weight:900;color:var(--red);line-height:1.1;margin-bottom:4px}
.stat-cell .lbl{font-size:12.5px;color:var(--ink-3);font-weight:500}
.stat-cell .num small{font-size:14px;font-weight:700;margin-left:2px}

/* ===== 通用区块 ===== */
.section{padding:74px 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(255,243,241,.7) 0%,rgba(255,250,249,0) 100%)}
.sec-head{max-width:720px;margin:0 auto 44px;text-align:center}
.sec-eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--red);letter-spacing:2px;margin-bottom:12px}
.sec-title{font-size:34px;font-weight:800;color:var(--ink);line-height:1.3;margin-bottom:14px;letter-spacing:-.3px}
.sec-sub{font-size:15.5px;color:var(--ink-3);line-height:1.8}

/* ===== 数据指标 ===== */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s;position:relative;overflow:hidden}
.metric-card::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--red),#ff9a8b)}
.metric-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.metric-card .m-num{font-size:38px;font-weight:900;color:var(--red);line-height:1;margin-bottom:10px}
.metric-card .m-num small{font-size:17px;font-weight:800}
.metric-card .m-lbl{font-size:14px;color:var(--ink-2);font-weight:600}

/* ===== 关于我们 ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:stretch}
.about-copy h3{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:16px;line-height:1.4}
.about-copy p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:14px}
.about-points{display:grid;gap:12px;margin-top:22px}
.about-points li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.about-points li:hover{transform:translateX(4px);box-shadow:var(--shadow-md)}
.about-points .ico{flex-shrink:0;width:26px;height:26px;border-radius:8px;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900;margin-top:2px}
.about-points b{display:block;font-size:14.5px;color:var(--ink);margin-bottom:2px}
.about-points span{font-size:13px;color:var(--ink-3);line-height:1.6}
.about-visual{background:linear-gradient(150deg,#fff 0%,#fff4f2 100%);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow-md);display:flex;flex-direction:column;justify-content:center;gap:14px}
.model-cloud{display:flex;flex-wrap:wrap;gap:8px}
.model-cloud span{padding:7px 13px;background:#fff;border:1px solid var(--red-line);border-radius:999px;font-size:13px;font-weight:600;color:var(--red-deep);transition:background .2s,transform .2s}
.model-cloud span:hover{background:var(--red);color:#fff;transform:translateY(-2px)}
.about-visual .cloud-note{font-size:13.5px;color:var(--ink-3);line-height:1.7;margin-top:6px;padding-top:14px;border-top:1px dashed var(--red-line)}

/* ===== 服务能力卡片 ===== */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s,border-color .3s;position:relative}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--red-line)}
.service-card .s-icon{width:46px;height:46px;border-radius:12px;background:var(--red-soft);display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:16px;transition:background .3s,transform .3s}
.service-card:hover .s-icon{background:var(--red);transform:rotate(-6deg)}
.service-card:hover .s-icon svg{stroke:#fff}
.service-card .s-icon svg{stroke:var(--red);transition:stroke .3s}
.service-card h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:9px}
.service-card p{font-size:14px;color:var(--ink-3);line-height:1.75}
.service-card .s-tag{display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;color:var(--red);background:var(--red-soft);padding:4px 11px;border-radius:6px}

/* ===== 一站式制作 / 场景 ===== */
.scene-tabs{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:32px}
.scene-tab{padding:9px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer;transition:.25s;font-family:inherit}
.scene-tab.active,.scene-tab:hover{background:var(--red);color:#fff;border-color:var(--red);box-shadow:0 6px 16px rgba(216,30,44,.28)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow-sm);transition:transform .28s,box-shadow .28s;position:relative;overflow:hidden}
.scene-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--red),#ff9a8b);opacity:0;transition:opacity .3s}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.scene-card:hover::before{opacity:1}
.scene-card h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.scene-card h3 .num{font-size:12px;font-weight:800;color:var(--red);background:var(--red-soft);padding:2px 8px;border-radius:6px}
.scene-card p{font-size:13.5px;color:var(--ink-3);line-height:1.72}

/* ===== 行业方案 ===== */
.industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.industry-card{background:linear-gradient(160deg,#fff 0%,#fff7f5 100%);border:1px solid var(--line);border-radius:14px;padding:22px 18px;box-shadow:var(--shadow-sm);transition:transform .28s,box-shadow .28s}
.industry-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.industry-card .i-ico{font-size:26px;margin-bottom:12px}
.industry-card h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:7px}
.industry-card p{font-size:13px;color:var(--ink-3);line-height:1.7}

/* ===== 服务网络 / 时间线 ===== */
.network-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center}
.network-list{display:grid;gap:14px}
.network-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow-sm)}
.network-item .n-dot{flex-shrink:0;width:10px;height:10px;border-radius:50%;background:var(--red);margin-top:7px;box-shadow:0 0 0 4px rgba(216,30,44,.12)}
.network-item b{font-size:15px;color:var(--ink);display:block;margin-bottom:3px}
.network-item span{font-size:13.5px;color:var(--ink-3);line-height:1.6}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--red),var(--red-line))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-26px;top:4px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--red);box-shadow:0 0 0 4px rgba(216,30,44,.10)}
.tl-item h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:5px}
.tl-item p{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ===== 标准流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s;position:relative}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.step-num{font-size:36px;font-weight:900;color:rgba(216,30,44,.16);line-height:1;margin-bottom:12px}
.step-card h3{font-size:16.5px;font-weight:800;color:var(--ink);margin-bottom:8px}
.step-card p{font-size:13.5px;color:var(--ink-3);line-height:1.72}

/* ===== 案例中心 ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:22px}
.case-body .c-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--red);background:var(--red-soft);padding:4px 10px;border-radius:6px;margin-bottom:10px}
.case-body h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:8px}
.case-body p{font-size:14px;color:var(--ink-3);line-height:1.75}

/* ===== 对比评测 ===== */
.compare-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:36px;align-items:stretch}
.score-card{background:linear-gradient(160deg,var(--red) 0%,var(--red-deep) 100%);border-radius:20px;padding:34px 30px;color:#fff;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.score-card::after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.10);top:-70px;right:-70px}
.score-card .stars{font-size:22px;letter-spacing:3px;color:#ffd9a0;margin-bottom:16px}
.score-big{font-size:60px;font-weight:900;line-height:1;margin-bottom:6px}
.score-big small{font-size:22px;font-weight:700;opacity:.85}
.score-card .score-sub{font-size:14.5px;opacity:.92;line-height:1.7;margin-bottom:22px}
.score-badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:700}
.compare-table-wrap{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-md);overflow:hidden;display:flex;flex-direction:column}
.compare-table-wrap .ct-head{padding:20px 24px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--red-soft),#fff)}
.compare-table-wrap .ct-head h3{font-size:18px;font-weight:800;color:var(--ink)}
.ct-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:520px}
table.compare th,table.compare td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);vertical-align:top}
table.compare thead th{background:var(--bg-2);color:var(--ink);font-weight:800;font-size:13.5px;white-space:nowrap}
table.compare tbody tr:hover{background:#fffaf9}
table.compare td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
table.compare td.good{color:var(--red-deep);font-weight:600}
table.compare td.bad{color:var(--ink-3)}
.badge-good{display:inline-block;background:var(--red-soft);color:var(--red);font-size:12px;font-weight:700;padding:2px 9px;border-radius:6px}

/* ===== Token比价 ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 24px;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s,border-color .3s;position:relative}
.price-card.featured{border-color:var(--red);box-shadow:0 16px 40px rgba(216,30,44,.16)}
.price-card.featured::before{content:"推荐";position:absolute;top:-12px;right:20px;background:var(--red);color:#fff;font-size:12px;font-weight:800;padding:4px 14px;border-radius:999px;box-shadow:0 4px 12px rgba(216,30,44,.35)}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.price-card .p-name{font-size:15px;font-weight:800;color:var(--red-deep);margin-bottom:6px;letter-spacing:.5px}
.price-card .p-rate{font-size:32px;font-weight:900;color:var(--ink);line-height:1.1;margin-bottom:4px}
.price-card .p-rate small{font-size:14px;font-weight:600;color:var(--ink-3)}
.price-card .p-desc{font-size:13px;color:var(--ink-3);margin-bottom:18px;line-height:1.65}
.price-card ul{display:grid;gap:9px;margin-bottom:20px}
.price-card ul li{font-size:13.5px;color:var(--ink-2);display:flex;align-items:flex-start;gap:8px;line-height:1.55}
.price-card ul li::before{content:"✓";color:var(--red);font-weight:900;flex-shrink:0}
.price-note{text-align:center;font-size:13px;color:var(--ink-3);margin-top:24px;line-height:1.7}

/* ===== 需求匹配表单 ===== */
.form-wrap{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-md);padding:40px;max-width:900px;margin:0 auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 22px}
.form-field{display:flex;flex-direction:column;gap:7px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:13.5px;font-weight:700;color:var(--ink-2)}
.form-field label .req{color:var(--red)}
.form-field input,.form-field select,.form-field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;color:var(--ink);background:var(--bg);transition:border-color .2s,box-shadow .2s,background .2s}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 4px rgba(216,30,44,.09)}
.form-field textarea{min-height:110px;resize:vertical}
.form-submit{margin-top:8px;display:flex;flex-direction:column;align-items:center;gap:12px}
.form-submit .btn{min-width:220px}
.form-hint{font-size:12.5px;color:var(--ink-3)}

/* ===== 客户评论 ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.review-stars{color:#f0a500;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.review-text{font-size:14px;color:var(--ink-2);line-height:1.8;flex:1;margin-bottom:16px}
.review-user{display:flex;align-items:center;gap:11px;padding-top:14px;border-top:1px solid var(--line)}
.review-avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--red),#ff9a8b);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;flex-shrink:0}
.review-user b{font-size:14px;color:var(--ink);display:block}
.review-user span{font-size:12.5px;color:var(--ink-3)}

/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .25s}
.faq-item.open{border-color:var(--red)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:none;cursor:pointer;font-size:15.5px;font-weight:700;color:var(--ink);text-align:left;font-family:inherit;transition:color .2s}
.faq-q:hover{color:var(--red)}
.faq-q .arrow{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .3s,background .3s}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);background:var(--red);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--ink-3);line-height:1.8}

/* ===== 帮助中心 / AI百科 / 行业资讯 ===== */
.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.help-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:var(--shadow-sm);transition:transform .28s,box-shadow .28s;display:flex;flex-direction:column}
.help-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.help-card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:10px}
.help-card p{font-size:13.5px;color:var(--ink-3);line-height:1.75;margin-bottom:16px;flex:1}
.help-card .help-link{font-size:14px;font-weight:700;color:var(--red);display:inline-flex;align-items:center;gap:5px;transition:gap .2s}
.help-card:hover .help-link{gap:10px}

.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.article-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow-sm);transition:transform .28s,box-shadow .28s,background .28s;display:block}
.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.article-card .a-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--red);background:var(--red-soft);padding:4px 10px;border-radius:6px;margin-bottom:12px}
.article-card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px;line-height:1.5}
.article-card p{font-size:13.5px;color:var(--ink-3);line-height:1.7;margin-bottom:14px}
.article-card .a-more{font-size:13.5px;font-weight:700;color:var(--red);display:inline-flex;align-items:center;gap:5px;transition:gap .2s}
.article-card:hover .a-more{gap:10px}

.article-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

/* ===== 联系我们 ===== */
.contact-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:stretch}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:18px}
.contact-info h3{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:2px}
.contact-info .c-sub{font-size:14px;color:var(--ink-3);line-height:1.7;margin-bottom:4px}
.contact-row{display:flex;gap:13px;align-items:flex-start}
.contact-row .ci{flex-shrink:0;width:40px;height:40px;border-radius:11px;background:var(--red-soft);display:flex;align-items:center;justify-content:center}
.contact-row .ci svg{stroke:var(--red)}
.contact-row b{display:block;font-size:14px;color:var(--ink);margin-bottom:2px}
.contact-row span{font-size:13.5px;color:var(--ink-3);line-height:1.6;word-break:break-all}
.qr-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-md);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px}
.qr-box img{width:180px;height:180px;object-fit:contain;border-radius:12px;border:1px solid var(--line);padding:6px;background:#fff}
.qr-box b{font-size:15px;color:var(--ink);font-weight:800}
.qr-box span{font-size:13px;color:var(--ink-3);line-height:1.6}

/* ===== 加盟代理 ===== */
.join-wrap{position:relative;background:linear-gradient(135deg,#fff4f2 0%,#fff 60%,#fff4f2 100%);border:1px solid var(--red-line);border-radius:24px;padding:52px 44px;box-shadow:var(--shadow-md);overflow:hidden;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.join-wrap::before{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:rgba(216,30,44,.07);top:-120px;right:-100px}
.join-copy{position:relative;z-index:2}
.join-copy h2{font-size:30px;font-weight:900;color:var(--ink);line-height:1.35;margin-bottom:14px}
.join-copy p{font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:22px}
.join-actions{display:flex;flex-wrap:wrap;gap:12px}
.join-list{position:relative;z-index:2;display:grid;gap:11px}
.join-list li{background:rgba(255,255,255,.75);border:1px solid var(--red-line);border-radius:11px;padding:13px 16px;font-size:14px;color:var(--ink-2);display:flex;align-items:center;gap:10px;backdrop-filter:blur(4px)}
.join-list li::before{content:"◆";color:var(--red);font-size:11px;flex-shrink:0}

/* ===== 友情链接 ===== */
.friend-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.friend-links a{padding:7px 16px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:13.5px;color:var(--ink-2);font-weight:500;transition:.2s}
.friend-links a:hover{color:var(--red);border-color:var(--red-line);background:var(--red-soft);transform:translateY(-2px)}

/* ===== 页脚 ===== */
.site-footer{background:#241a1b;color:#e8dddd;padding:58px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand img{height:36px;width:auto;margin-bottom:14px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:13.5px;color:#b9a9a9;line-height:1.8;margin-bottom:12px}
.footer-brand .f-contact{font-size:13px;color:#cfc0c0;line-height:1.9}
.footer-brand .f-contact a{color:#ff9a8b}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:9px}
.footer-col ul li a{font-size:13.5px;color:#b9a9a9;transition:color .2s}
.footer-col ul li a:hover{color:#ff9a8b}
.footer-bottom{padding:22px 0;text-align:center}
.footer-bottom p{font-size:12.5px;color:#9d8f8f;line-height:1.8}
.footer-bottom a{color:#cfc0c0}
.footer-bottom a:hover{color:#ff9a8b}

/* ===== 浮动客服 ===== */
.float-service{position:fixed;right:18px;bottom:24px;z-index:200;display:flex;flex-direction:column;gap:10px}
.float-btn{width:52px;height:52px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s;position:relative}
.float-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:var(--shadow-lg)}
.float-btn.primary{background:linear-gradient(135deg,var(--red),var(--red-deep));border:none}
.float-btn svg{width:23px;height:23px}
.float-btn.primary svg{stroke:#fff}
.float-btn:not(.primary) svg{stroke:var(--red)}
.float-panel{position:absolute;right:64px;bottom:0;width:230px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);padding:18px;text-align:center;display:none}
.float-panel.show{display:block;animation:fadeUp .3s ease}
.float-panel img{width:150px;height:150px;object-fit:contain;margin:0 auto 10px;border-radius:8px;border:1px solid var(--line);padding:4px}
.float-panel b{display:block;font-size:14px;color:var(--ink);margin-bottom:4px}
.float-panel span{font-size:12.5px;color:var(--ink-3);line-height:1.6}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.back-top{position:fixed;right:18px;bottom:88px;z-index:199;width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .3s}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px)}
.back-top svg{stroke:var(--red)}

/* ===== 动画 ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .65s ease,transform .65s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
.hero h1{font-size:36px}
.hero-inner{grid-template-columns:1fr;gap:34px}
.hero-desc{max-width:100%}
.metrics{grid-template-columns:repeat(2,1fr)}
.service-grid{grid-template-columns:repeat(2,1fr)}
.scene-grid{grid-template-columns:repeat(2,1fr)}
.industry-grid{grid-template-columns:repeat(2,1fr)}
.steps{grid-template-columns:repeat(2,1fr)}
.about-grid{grid-template-columns:1fr;gap:30px}
.network-wrap{grid-template-columns:1fr;gap:30px}
.compare-wrap{grid-template-columns:1fr;gap:24px}
.price-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:repeat(2,1fr)}
.help-grid{grid-template-columns:repeat(2,1fr)}
.contact-wrap{grid-template-columns:1fr}
.join-wrap{grid-template-columns:1fr;padding:40px 30px}
.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:820px){
.nav-links{display:none}
.nav-cta .btn-ghost{display:none}
.nav-toggle{display:block}
.sec-title{font-size:28px}
.section{padding:56px 0}
.case-grid{grid-template-columns:1fr}
.article-wrap{grid-template-columns:1fr}
}
@media (max-width:640px){
.hero{padding:52px 0 60px}
.hero h1{font-size:29px;letter-spacing:0}
.hero-desc{font-size:15px}
.hero-actions .btn{width:100%}
.metrics{grid-template-columns:1fr 1fr;gap:12px}
.metric-card{padding:20px 14px}
.metric-card .m-num{font-size:30px}
.service-grid,.scene-grid,.industry-grid,.steps,.review-grid,.help-grid,.article-grid{grid-template-columns:1fr}
.form-wrap{padding:26px 20px}
.form-grid{grid-template-columns:1fr}
.join-wrap{padding:32px 22px}
.join-copy h2{font-size:24px}
.footer-grid{grid-template-columns:1fr;gap:24px}
.score-big{font-size:48px}
.float-service{right:12px;bottom:16px}
.back-top{right:12px;bottom:78px}
.float-panel{right:60px;width:200px}
table.compare{min-width:560px}
}
@media (prefers-reduced-motion:reduce){
*{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
html{scroll-behavior:auto}
}