*,*::before,*::after{box-sizing:border-box}
:root{
  --ink:#16160f;
  --ink-2:#4c4c42;
  --ink-3:#7a7a6d;
  --yellow:#ffd400;
  --yellow-deep:#ffb400;
  --yellow-soft:#fff3b8;
  --line:#eee7d1;
  --paper:#ffffff;
  --shadow-sm:0 2px 10px rgba(22,22,15,.06);
  --shadow-md:0 12px 30px rgba(22,22,15,.09);
  --shadow-lg:0 24px 54px rgba(22,22,15,.13);
}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-color:#fffdf3;
  background-image:
    radial-gradient(1100px 560px at 88% -8%, rgba(255,212,0,.30), rgba(255,212,0,0) 64%),
    radial-gradient(820px 480px at 2% 4%, rgba(255,212,0,.16), rgba(255,212,0,0) 62%),
    linear-gradient(180deg,#fffdf3 0%,#fffdf8 45%,#fffdf3 100%);
}
img{max-width:100%}
a{color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:64px 0;position:relative}
.section-head{max-width:780px;margin:0 auto 38px;text-align:center}
.section-head.left{text-align:left;margin-left:0}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.16em;color:#7a5c00;background:var(--yellow-soft);padding:5px 14px;border-radius:999px}
h2{font-size:clamp(23px,3.2vw,33px);line-height:1.32;margin:16px 0 12px;font-weight:800}
.section-head p{color:var(--ink-2);font-size:15.5px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:999px;font-size:14.5px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;white-space:nowrap;line-height:1.4}
.btn-primary{background:var(--yellow);color:#16160f;border-color:var(--yellow);box-shadow:0 8px 20px rgba(255,180,0,.34)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,180,0,.44)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--yellow-deep);transform:translateY(-2px)}
.btn-dark{background:#16160f;color:#fff;border-color:#16160f}
.btn-dark:hover{background:#2c2c22;transform:translateY(-2px)}
.btn-lg{padding:13px 30px;font-size:16px}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,253,243,.93);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;flex-shrink:0;max-width:190px}
.brand-logo{display:block;flex-shrink:0;max-width:120px}
.ai-page-logo{display:block;max-height:36px;width:auto}
.brand-name{font-size:17px;letter-spacing:.04em;white-space:nowrap}
.nav{display:flex;align-items:center}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:9px 11px;font-size:14px;font-weight:600;color:var(--ink-2);text-decoration:none;border-radius:10px;white-space:nowrap;transition:color .18s ease,background .18s ease}
.nav-links a:hover{color:var(--ink);background:var(--yellow-soft)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1.5px solid var(--line);background:#fff;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:.2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:.2s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{padding:56px 0 34px;position:relative;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(28px,4.1vw,46px);line-height:1.24;font-weight:900;margin:18px 0 18px}
.hero h1 .hl{position:relative;display:inline-block;z-index:1}
.hero h1 .hl::after{content:"";position:absolute;left:-2px;right:-2px;bottom:4px;height:14px;background:var(--yellow);z-index:-1;border-radius:4px}
.hero-lead{font-size:16px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 22px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-2)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--yellow-deep);flex-shrink:0}
.hero-visual{position:relative;min-height:380px;display:grid;place-items:center;overflow:hidden}
.hv-stage{position:relative;display:grid;place-items:center;width:100%;height:100%}
.hv-stage>*{grid-area:1/1}
.hv-orb{width:min(288px,72%);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 34% 28%,#fff6bd 0%,#ffd400 46%,#ffab00 100%);box-shadow:0 30px 70px rgba(255,180,0,.45);animation:hvFloat 7s ease-in-out infinite}
.hv-ring{width:min(376px,90%);aspect-ratio:1;border-radius:50%;border:1.5px dashed rgba(22,22,15,.22);animation:hvSpin 30s linear infinite}
.hv-ring::after{content:"";position:absolute;top:-5px;left:50%;width:11px;height:11px;border-radius:50%;background:#16160f;transform:translateX(-50%)}
.hv-core{font-size:clamp(26px,3.2vw,40px);font-weight:900;letter-spacing:.14em;color:#16160f;z-index:2}
.hv-chip{position:absolute;z-index:3;background:#fff;border:1.5px solid #16160f;border-radius:999px;padding:7px 15px;font-size:13.5px;font-weight:800;box-shadow:4px 4px 0 rgba(22,22,15,.12);animation:hvFloat 5.5s ease-in-out infinite}
.hv-chip-a{top:8%;left:2%}
.hv-chip-b{top:26%;right:0;animation-delay:.7s}
.hv-chip-c{bottom:24%;left:0;animation-delay:1.3s}
.hv-chip-d{bottom:8%;right:6%;animation-delay:2s}
@keyframes hvFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}
@keyframes hvSpin{to{transform:rotate(360deg)}}

/* ---------- 数据条 ---------- */
.stats{padding:16px 0 8px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:20px 16px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stat strong{display:block;font-size:27px;line-height:1.2;font-weight:900}
.stat strong::after{content:"";display:block;width:26px;height:4px;border-radius:2px;background:var(--yellow);margin:9px auto 10px}
.stat span{font-size:13.5px;color:var(--ink-3)}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:start}
.about-text p{color:var(--ink-2);font-size:15.5px;margin-bottom:16px}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{display:inline-block;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--ink-2);transition:.2s}
.tag:hover{border-color:var(--yellow-deep);color:var(--ink);background:#fffaea}
.about-media{display:grid;gap:16px}
.media-frame{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm)}
.media-frame img{display:block;width:100%;height:auto}
.about-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-top:42px}
.feature{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#f0d98d}
.feature h3{font-size:16px;font-weight:800;margin-bottom:8px;display:flex;align-items:center;gap:9px}
.feature h3::before{content:"";width:9px;height:9px;border-radius:3px;background:var(--yellow);flex-shrink:0}
.feature p{font-size:14px;color:var(--ink-3)}

/* ---------- 服务卡片 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 22px 22px;overflow:hidden;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.svc-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--yellow);transition:height .3s ease}
.svc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#f0d98d}
.svc-card:hover::before{height:100%}
.svc-num{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;padding:0 8px;border-radius:10px;background:var(--yellow-soft);color:#7a5c00;font-size:13px;font-weight:900;margin-bottom:14px}
.svc-card h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.svc-card p{font-size:14px;color:var(--ink-3);line-height:1.7}

/* ---------- 模型云 ---------- */
.model-cloud{margin-top:34px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 24px;box-shadow:var(--shadow-sm)}
.model-cloud h3{font-size:17px;font-weight:800;margin-bottom:6px}
.model-cloud>p{font-size:14px;color:var(--ink-3);margin-bottom:18px}
.model-list{display:flex;flex-wrap:wrap;gap:9px}
.model-list li{padding:6px 13px;border-radius:9px;background:#fffdf3;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);transition:.2s}
.model-list li:hover{background:var(--yellow-soft);border-color:#f2d98a;color:var(--ink)}

/* ---------- 一站式制作 ---------- */
.studio-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:start}
.steps{display:grid;gap:16px}
.step{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:transform .22s ease,box-shadow .22s ease}
.step:hover{transform:translateX(4px);box-shadow:var(--shadow-sm)}
.step-idx{flex-shrink:0;width:38px;height:38px;border-radius:11px;background:var(--yellow);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;color:#16160f}
.step h3{font-size:16px;font-weight:800;margin-bottom:6px}
.step p{font-size:14px;color:var(--ink-3)}
.studio-media{display:grid;gap:16px}

/* ---------- 行业方案 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sol-card{background:linear-gradient(180deg,#ffffff 0%,#fffdf2 100%);border:1px solid var(--line);border-radius:18px;padding:24px;transition:transform .24s ease,box-shadow .24s ease}
.sol-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.sol-card h3{font-size:16.5px;font-weight:800;margin-bottom:10px}
.sol-card p{font-size:14px;color:var(--ink-3)}
.sol-card .sol-line{width:36px;height:4px;border-radius:2px;background:var(--yellow);margin-bottom:14px}

/* ---------- 标准流程 ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.tl-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 18px;position:relative;transition:transform .22s ease,box-shadow .22s ease}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.tl-item span{display:inline-block;font-size:12px;font-weight:900;letter-spacing:.1em;color:#7a5c00;background:var(--yellow-soft);padding:3px 10px;border-radius:999px;margin-bottom:12px}
.tl-item h3{font-size:15.5px;font-weight:800;margin-bottom:8px}
.tl-item p{font-size:13.5px;color:var(--ink-3)}

/* ---------- 服务网络 ---------- */
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.net-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center;transition:transform .22s ease,box-shadow .22s ease}
.net-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.net-card .dot{width:44px;height:44px;border-radius:50%;background:var(--yellow-soft);border:2px solid var(--yellow);margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-weight:900;color:#7a5c00;font-size:15px}
.net-card h3{font-size:15.5px;font-weight:800;margin-bottom:8px}
.net-card p{font-size:13.5px;color:var(--ink-3)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;min-width:680px}
th,td{padding:15px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:#fffaea;font-weight:800;color:var(--ink);white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
tbody tr{transition:background .18s ease}
tbody tr:hover{background:#fffdf0}
td strong{font-weight:800}
.table-note{font-size:13.5px;color:var(--ink-3);margin-top:14px}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.case-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .24s ease,box-shadow .24s ease}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.case-body{padding:20px}
.case-body h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.case-body p{font-size:14px;color:var(--ink-3)}

/* ---------- 对比评测 ---------- */
.score-card{display:grid;grid-template-columns:auto 1fr;gap:30px;align-items:center;background:#16160f;color:#fff;border-radius:22px;padding:34px;margin-bottom:28px;box-shadow:var(--shadow-lg)}
.score-main{display:flex;align-items:flex-end;gap:6px}
.score-main strong{font-size:64px;line-height:.9;font-weight:900;color:var(--yellow)}
.score-main span{font-size:20px;color:#cfc9b0;font-weight:700;padding-bottom:6px}
.stars{color:var(--yellow);font-size:22px;letter-spacing:4px;line-height:1}
.score-info h3{font-size:20px;font-weight:800;margin:10px 0 8px}
.score-info p{font-size:14.5px;color:#cfc9b0}

/* ---------- 评论 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.voice-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;transition:transform .22s ease,box-shadow .22s ease}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.voice-quote{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:18px}
.voice-user{display:flex;align-items:center;gap:12px}
.voice-avatar{width:40px;height:40px;border-radius:50%;background:var(--yellow);display:flex;align-items:center;justify-content:center;font-weight:900;color:#16160f;flex-shrink:0}
.voice-user strong{display:block;font-size:14.5px;font-weight:800}
.voice-user span{display:block;font-size:12.5px;color:var(--ink-3)}

/* ---------- 加盟代理 ---------- */
.partner{background:linear-gradient(120deg,#ffe45c 0%,#ffd400 52%,#ffc400 100%);border-radius:24px;padding:40px;color:#16160f;position:relative;overflow:hidden;box-shadow:0 22px 48px rgba(255,180,0,.3)}
.partner::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;border:26px solid rgba(255,255,255,.35)}
.partner-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr auto;gap:28px;align-items:center}
.partner h2{font-size:clamp(22px,2.8vw,30px);margin:0 0 12px;color:#16160f}
.partner p{font-size:15px;color:#4a3c00;max-width:660px}
.partner-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 表单与联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow-md)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.form-field label{font-size:13.5px;font-weight:700;color:var(--ink-2)}
.form-field input,.form-field select,.form-field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;font-size:14.5px;font-family:inherit;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--yellow-deep);box-shadow:0 0 0 4px rgba(255,212,0,.24)}
.form-field textarea{min-height:120px;resize:vertical}
.form-tip{font-size:13px;color:var(--ink-3);margin-top:12px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-sm)}
.contact-card h3{font-size:17px;font-weight:800;margin-bottom:16px}
.contact-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);padding:9px 0;border-bottom:1px dashed var(--line);word-break:break-all}
.contact-list li:last-child{border-bottom:none}
.contact-list b{font-weight:800;color:var(--ink);flex-shrink:0}
.contact-list a{color:#8a6d00;text-decoration:none;font-weight:700}
.contact-list a:hover{text-decoration:underline}
.qr-box{margin-top:18px;text-align:center}
.qr-box .media-frame{display:inline-block;padding:10px;max-width:190px}
.qr-box img{display:block;width:100%;height:auto;border-radius:10px}
.qr-box p{font-size:12.5px;color:var(--ink-3);margin-top:8px}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item[open]{border-color:#f0d98d;box-shadow:var(--shadow-sm)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 54px 16px 20px;font-weight:700;font-size:15.5px;position:relative;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;line-height:1;color:#8a6d00;font-weight:700;transition:transform .22s ease}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 20px 18px;color:var(--ink-2);font-size:14.5px}

/* ---------- AI百科 ---------- */
.wiki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.wiki-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:transform .22s ease,box-shadow .22s ease}
.wiki-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.wiki-card dt{font-size:15.5px;font-weight:800;margin-bottom:8px;color:var(--ink)}
.wiki-card dd{margin:0;font-size:14px;color:var(--ink-3)}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.news-card{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-decoration:none;color:inherit;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#f0d98d}
.news-card span{display:inline-block;font-size:12px;font-weight:800;color:#7a5c00;background:var(--yellow-soft);padding:3px 10px;border-radius:999px;margin-bottom:12px}
.news-card h3{font-size:16px;font-weight:800;margin-bottom:8px}
.news-card p{font-size:13.5px;color:var(--ink-3)}

/* ---------- 友情链接 ---------- */
.links-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow-sm)}
.links-box h2{font-size:19px;margin:0 0 16px}
.links-box ul{display:flex;flex-wrap:wrap;gap:10px}
.links-box a{display:inline-block;padding:7px 15px;border-radius:999px;background:#fffdf3;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--ink-2);text-decoration:none;transition:.2s}
.links-box a:hover{background:var(--yellow-soft);border-color:#f2d98a;color:var(--ink)}

/* ---------- 页脚 ---------- */
.site-footer{background:#16160f;color:#e8e4d4;margin-top:64px;padding:36px 0 26px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:start;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:#fff;font-weight:800;font-size:17px}
.footer-brand .ai-page-logo{max-height:32px;width:auto;display:block}
.site-footer p{font-size:13.5px;color:#b9b4a0;line-height:1.8}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:flex-end}
.footer-links a{color:#d6d1bd;font-size:13.5px;text-decoration:none;transition:color .2s ease}
.footer-links a:hover{color:var(--yellow)}
.footer-bottom{padding-top:18px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:12.5px;color:#a09b88}

/* ---------- 浮动 ---------- */
.floating{position:fixed;right:18px;bottom:22px;z-index:80;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.cs-toggle{width:54px;height:54px;border-radius:50%;border:none;background:var(--yellow);color:#16160f;font-size:13px;font-weight:900;cursor:pointer;box-shadow:0 12px 26px rgba(255,180,0,.5);transition:transform .2s ease;line-height:1.1;padding:0}
.cs-toggle:hover{transform:scale(1.06)}
.cs-panel{display:none;width:220px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow-lg);text-align:center}
.cs-panel.open{display:block;animation:fadeUp .25s ease}
.cs-panel img{display:block;width:100%;height:auto;border-radius:10px;margin-bottom:10px}
.cs-panel p{font-size:12.5px;color:var(--ink-3);line-height:1.7}
.cs-panel strong{display:block;font-size:13.5px;color:var(--ink);margin-bottom:4px}
.to-top{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;font-size:16px;font-weight:900;box-shadow:var(--shadow-sm);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- 入场动画 ---------- */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .62s cubic-bezier(.22,.7,.3,1),transform .62s cubic-bezier(.22,.7,.3,1)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav{position:absolute;top:100%;left:0;right:0;display:none;background:#fffdf3;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);padding:10px 20px 16px;border-radius:0 0 18px 18px}
  .nav.open{display:block}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links a{padding:13px 8px;border-bottom:1px solid var(--line);border-radius:0;font-size:15px}
  .nav-links li:last-child a{border-bottom:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{display:none}
  .about-grid,.studio-grid,.contact-grid{grid-template-columns:1fr}
  .partner-inner{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
}
@media (max-width:900px){
  .svc-grid,.sol-grid,.voice-grid,.wiki-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .score-card{grid-template-columns:1fr;gap:18px;padding:28px}
}
@media (max-width:640px){
  .section{padding:48px 0}
  .svc-grid,.sol-grid,.voice-grid,.wiki-grid,.case-grid,.net-grid,.timeline,.form-row{grid-template-columns:1fr}
  .header-actions .btn-ghost{display:none}
  .brand-name{font-size:16px}
  .partner{padding:26px}
  .form-card,.contact-card{padding:22px}
  .score-main strong{font-size:52px}
  .hero-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:6px}
}