/* 杭州玉柳科技 — 墨青·月白设计系统 */
:root{
  --c-ink:#0E2A2B;          /* 主墨青 */
  --c-ink-soft:#1F4145;
  --c-jade:#2E7C6B;         /* 玉绿 */
  --c-jade-light:#7DB7A4;
  --c-gold:#C8A968;         /* 暖金 */
  --c-gold-soft:#E8D8A8;
  --c-moon:#F6F4EE;         /* 月白 */
  --c-cream:#FBF9F3;
  --c-line:#E1DCCB;
  --c-text:#2A2E2B;
  --c-text-soft:#5A645D;
  --c-bg:#F9F7F0;
  --grad-jade:linear-gradient(135deg,#0E2A2B 0%,#2E7C6B 100%);
  --grad-gold:linear-gradient(135deg,#C8A968 0%,#E8D8A8 100%);
  --shadow-card:0 6px 28px -10px rgba(14,42,43,.18);
  --shadow-hover:0 14px 38px -12px rgba(14,42,43,.28);
  --r-sm:8px; --r-md:14px; --r-lg:22px; --r-xl:32px;
  --t-smooth:.35s cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--c-bg);color:var(--c-text);font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t-smooth)}
h1,h2,h3,h4{font-family:'Noto Serif SC','Source Han Serif SC',Georgia,serif;color:var(--c-ink);font-weight:700;line-height:1.25;letter-spacing:.01em}
h1{font-size:42px}h2{font-size:30px}h3{font-size:20px}
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* 顶部信息栏 */
.topbar{background:var(--c-ink);color:#D8DCD5;font-size:13px;padding:8px 0;letter-spacing:.04em}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.topbar a{color:var(--c-gold-soft)}
.topbar a:hover{color:#fff}

/* 导航 */
.nav{position:sticky;top:0;z-index:100;background:rgba(249,247,240,.94);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--c-line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--grad-jade);display:grid;place-items:center;color:var(--c-gold-soft);font-family:'Noto Serif SC',serif;font-size:22px;font-weight:800;box-shadow:var(--shadow-card)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-family:'Noto Serif SC',serif;font-size:18px;color:var(--c-ink);letter-spacing:.05em}
.brand-text span{font-size:11px;color:var(--c-text-soft);letter-spacing:.18em;text-transform:uppercase}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:var(--c-text-soft);font-weight:500;position:relative;padding:6px 0}
.nav-links a:hover,.nav-links a.active{color:var(--c-ink)}
.nav-links a.active::after,.nav-links a:hover::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--c-jade);border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:transform var(--t-smooth),box-shadow var(--t-smooth),background var(--t-smooth)}
.btn-primary{background:var(--grad-jade);color:#fff;box-shadow:var(--shadow-card)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-ghost{background:transparent;color:var(--c-ink);border:1.5px solid var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff}

/* Hero */
.hero{position:relative;padding:90px 0 110px;background:linear-gradient(180deg,#F9F7F0 0%,#EFEBDE 100%);overflow:hidden}
.hero::before{content:"";position:absolute;top:-40px;right:-40px;width:520px;height:520px;background:radial-gradient(circle,rgba(46,124,107,.18) 0%,transparent 65%);border-radius:50%;z-index:0}
.hero::after{content:"柳";position:absolute;left:-30px;bottom:-60px;font-family:'Noto Serif SC',serif;font-size:380px;font-weight:900;color:rgba(14,42,43,.04);line-height:1;z-index:0;pointer-events:none}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 18px;background:rgba(46,124,107,.1);color:var(--c-jade);border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.08em;margin-bottom:24px}
.hero-eyebrow::before{content:"";width:6px;height:6px;background:var(--c-jade);border-radius:50%}
.hero h1{font-size:48px;margin-bottom:22px;color:var(--c-ink)}
.hero h1 em{font-style:normal;color:var(--c-jade);position:relative;padding:0 2px}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:9px;background:rgba(200,169,104,.4);z-index:-1}
.hero p.lead{font-size:17px;color:var(--c-text-soft);margin-bottom:34px;max-width:540px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:50px;border-top:1px solid var(--c-line);padding-top:28px}
.hero-stat strong{display:block;font-family:'Noto Serif SC',serif;font-size:32px;color:var(--c-ink);line-height:1}
.hero-stat span{display:block;font-size:13px;color:var(--c-text-soft);margin-top:6px;letter-spacing:.06em}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-lg);box-shadow:var(--shadow-hover);aspect-ratio:5/6;object-fit:cover}
.hero-visual::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:1.5px solid var(--c-jade);border-radius:var(--r-lg);z-index:-1}

/* 通用 section */
.section{padding:90px 0}
.section-alt{background:linear-gradient(180deg,#FBF9F3 0%,#F6F2E5 100%)}
.section-head{text-align:center;max-width:680px;margin:0 auto 60px}
.section-head .eyebrow{font-size:13px;color:var(--c-jade);letter-spacing:.22em;font-weight:600;text-transform:uppercase;margin-bottom:14px}
.section-head h2{margin-bottom:18px}
.section-head p{color:var(--c-text-soft);font-size:16px}

/* 服务网格 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.service-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:transform var(--t-smooth),box-shadow var(--t-smooth);border:1px solid rgba(225,220,203,.6);position:relative;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.service-card .img-wrap{position:relative;overflow:hidden;aspect-ratio:5/3}
.service-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.service-card:hover .img-wrap img{transform:scale(1.05)}
.service-card .tag{position:absolute;top:14px;left:14px;background:var(--c-ink);color:#fff;font-size:12px;padding:5px 12px;border-radius:999px;font-weight:500;letter-spacing:.06em}
.service-card .body{padding:24px 24px 28px;flex:1;display:flex;flex-direction:column}
.service-card h3{margin-bottom:10px;font-size:19px}
.service-card .desc{color:var(--c-text-soft);font-size:14px;flex:1;margin-bottom:20px}
.service-card .footer{display:flex;align-items:center;justify-content:space-between;border-top:1px dashed var(--c-line);padding-top:18px}
.service-card .price{font-family:'Noto Serif SC',serif;font-size:22px;color:var(--c-jade);font-weight:700}
.service-card .price small{font-size:13px;color:var(--c-text-soft);font-weight:400;margin-left:2px}
.service-card .more{font-size:14px;color:var(--c-ink);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.service-card .more::after{content:"→";transition:transform var(--t-smooth)}
.service-card:hover .more::after{transform:translateX(4px)}

/* 优势 */
.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.feature-card{padding:30px 26px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--c-line);transition:all var(--t-smooth)}
.feature-card:hover{border-color:var(--c-jade);transform:translateY(-4px)}
.feature-card .icon{width:54px;height:54px;border-radius:14px;background:var(--grad-jade);display:grid;place-items:center;color:var(--c-gold-soft);margin-bottom:18px}
.feature-card h3{font-size:18px;margin-bottom:8px}
.feature-card p{color:var(--c-text-soft);font-size:14px}

/* 流程时间线 */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;position:relative;margin-top:40px}
.process::before{content:"";position:absolute;top:32px;left:6%;right:6%;height:1.5px;background:linear-gradient(90deg,var(--c-jade-light),var(--c-gold),var(--c-jade-light));z-index:0}
.process-step{text-align:center;position:relative;z-index:1}
.process-step .num{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:#fff;border:2px solid var(--c-jade);color:var(--c-ink);display:grid;place-items:center;font-family:'Noto Serif SC',serif;font-size:24px;font-weight:700;box-shadow:0 4px 14px rgba(46,124,107,.18)}
.process-step h4{font-size:15px;color:var(--c-ink);margin-bottom:6px}
.process-step p{font-size:13px;color:var(--c-text-soft)}

/* 案例 */
.case-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--c-line)}
.case-card img{height:100%;object-fit:cover;min-height:240px}
.case-card .body{padding:30px}
.case-card h3{font-size:21px;margin-bottom:8px}
.case-card .meta{font-size:12px;color:var(--c-jade);letter-spacing:.08em;margin-bottom:12px;font-weight:600}
.case-card .desc{color:var(--c-text-soft);font-size:14px;margin-bottom:18px}
.case-stats{display:flex;gap:24px;border-top:1px dashed var(--c-line);padding-top:16px}
.case-stats div strong{display:block;font-family:'Noto Serif SC',serif;font-size:22px;color:var(--c-ink)}
.case-stats div span{font-size:12px;color:var(--c-text-soft)}

/* 评价 */
.testi-card{background:#fff;padding:28px 26px;border-radius:var(--r-lg);border:1px solid var(--c-line);box-shadow:var(--shadow-card)}
.testi-card .stars{color:var(--c-gold);margin-bottom:12px;letter-spacing:2px}
.testi-card .quote{color:var(--c-text);font-size:15px;line-height:1.8;margin-bottom:18px;font-style:italic}
.testi-card .who{display:flex;align-items:center;gap:12px;border-top:1px solid var(--c-line);padding-top:14px}
.testi-card .who img{width:44px;height:44px;border-radius:50%;object-fit:cover}
.testi-card .who strong{display:block;font-size:14px;color:var(--c-ink)}
.testi-card .who span{font-size:12px;color:var(--c-text-soft)}
.testi-card .when{font-size:11px;color:var(--c-text-soft);float:right;margin-top:6px;letter-spacing:.06em}

/* CTA */
.cta-band{background:var(--grad-jade);color:#fff;border-radius:var(--r-xl);padding:60px 50px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;position:relative;overflow:hidden;margin:40px 0}
.cta-band::before{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;background:radial-gradient(circle,rgba(200,169,104,.3),transparent 65%);border-radius:50%}
.cta-band h2{color:#fff;margin-bottom:14px;position:relative}
.cta-band p{color:rgba(255,255,255,.85);position:relative}
.cta-band .btn{justify-self:end;position:relative}
.cta-band .btn-primary{background:var(--c-gold);color:var(--c-ink)}

/* Footer */
footer{background:var(--c-ink);color:#B5C2BB;padding:70px 0 30px;margin-top:60px}
footer h4{color:#fff;font-family:'Noto Sans SC',sans-serif;font-size:15px;margin-bottom:18px;letter-spacing:.05em}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:50px;margin-bottom:40px}
.foot-brand p{font-size:14px;color:#94A39B;margin-top:18px;line-height:1.8}
footer a{color:#B5C2BB;font-size:14px;display:block;padding:4px 0;transition:color var(--t-smooth)}
footer a:hover{color:var(--c-gold-soft)}
footer .info-line{font-size:13px;color:#94A39B;padding:3px 0}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:#7C8A82}
.foot-bottom a{color:var(--c-gold-soft);display:inline;padding:0}

/* 浮动按钮 */
.float-btn{position:fixed;right:24px;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow-hover);transition:transform var(--t-smooth),background var(--t-smooth);z-index:200;border:none}
.float-btn svg{width:22px;height:22px}
.float-back{bottom:24px;background:var(--c-ink);color:#fff;opacity:0;pointer-events:none}
.float-back.show{opacity:1;pointer-events:auto}
.float-back:hover{transform:translateY(-3px);background:var(--c-jade)}
.float-chat{bottom:104px;background:var(--grad-gold);color:var(--c-ink)}
.float-chat:hover{transform:scale(1.08)}

/* 聊天弹窗 */
.chat-panel{position:fixed;bottom:104px;right:84px;width:320px;background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-hover);z-index:201;overflow:hidden;transform:translateY(20px) scale(.92);opacity:0;pointer-events:none;transition:all var(--t-smooth);border:1px solid var(--c-line)}
.chat-panel.open{transform:translateY(0) scale(1);opacity:1;pointer-events:auto}
.chat-head{background:var(--grad-jade);color:#fff;padding:16px 20px;display:flex;align-items:center;gap:12px}
.chat-head .dot{width:8px;height:8px;background:#7DD8B0;border-radius:50%;box-shadow:0 0 0 4px rgba(125,216,176,.25)}
.chat-head strong{font-size:14px;display:block}
.chat-head span{font-size:11px;color:rgba(255,255,255,.7)}
.chat-body{padding:18px;max-height:260px;overflow-y:auto}
.chat-msg{margin-bottom:14px}
.chat-msg.bot{background:var(--c-cream);padding:10px 14px;border-radius:0 14px 14px 14px;font-size:13px;color:var(--c-text);max-width:85%}
.chat-msg.bot small{display:block;font-size:11px;color:var(--c-text-soft);margin-bottom:4px}
.chat-input{display:flex;border-top:1px solid var(--c-line);padding:10px;gap:6px}
.chat-input input{flex:1;border:1px solid var(--c-line);border-radius:999px;padding:8px 14px;font-size:13px;outline:none}
.chat-input input:focus{border-color:var(--c-jade)}
.chat-input button{border:none;background:var(--c-jade);color:#fff;border-radius:50%;width:32px;height:32px;cursor:pointer}

/* 页头横幅 */
.page-banner{padding:80px 0 60px;background:linear-gradient(135deg,#EFEBDE 0%,#F9F7F0 100%);position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.page-banner::after{content:"玉柳";position:absolute;right:-40px;top:-30px;font-family:'Noto Serif SC',serif;font-size:280px;color:rgba(14,42,43,.04);font-weight:900;line-height:1;pointer-events:none}
.crumbs{font-size:13px;color:var(--c-text-soft);margin-bottom:18px;position:relative}
.crumbs a{color:var(--c-jade)}
.page-banner h1{font-size:38px;margin-bottom:14px;position:relative}
.page-banner p{color:var(--c-text-soft);font-size:16px;max-width:680px;position:relative}

/* 详情页 */
.detail-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:start;margin:50px 0}
.detail-grid .hero-img{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);aspect-ratio:4/3}
.detail-grid .hero-img img{width:100%;height:100%;object-fit:cover}
.detail-info .tag{display:inline-block;background:rgba(46,124,107,.12);color:var(--c-jade);padding:6px 14px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.06em;margin-bottom:18px}
.detail-info h1{font-size:34px;margin-bottom:14px}
.detail-info .lead{color:var(--c-text-soft);font-size:15px;margin-bottom:22px;line-height:1.8}
.detail-info .price-box{background:var(--c-cream);padding:22px;border-radius:var(--r-md);margin-bottom:24px;border-left:4px solid var(--c-gold)}
.detail-info .price-box .price{font-family:'Noto Serif SC',serif;font-size:38px;color:var(--c-jade);font-weight:700;line-height:1}
.detail-info .price-box small{display:block;font-size:13px;color:var(--c-text-soft);margin-top:6px}
.detail-info .actions{display:flex;gap:12px;margin-bottom:24px}
.detail-info .specs{display:grid;grid-template-columns:1fr 1fr;gap:14px;font-size:14px}
.detail-info .specs > div{padding:10px 14px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm)}
.detail-info .specs span{color:var(--c-text-soft);display:block;font-size:12px;margin-bottom:2px}
.detail-info .specs strong{color:var(--c-ink)}
.detail-body{background:#fff;border-radius:var(--r-lg);padding:50px;box-shadow:var(--shadow-card);margin-bottom:40px}
.detail-body h2{font-size:24px;margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--c-jade)}
.detail-body h2:first-child{margin-top:0}
.detail-body p{color:var(--c-text);margin-bottom:14px;line-height:1.85}
.detail-body ul{margin:10px 0 20px 22px;color:var(--c-text-soft)}
.detail-body ul li{margin-bottom:8px}
.detail-body img{border-radius:var(--r-md);margin:18px 0}

/* 评价区 */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:30px}

/* 表单 */
.form-wrap{background:#fff;border-radius:var(--r-lg);padding:46px;box-shadow:var(--shadow-card);max-width:740px;margin:50px auto}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;color:var(--c-ink);font-weight:600;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1.5px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-cream);font-size:14px;font-family:inherit;outline:none;transition:border var(--t-smooth)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--c-jade);background:#fff}
.form-group textarea{min-height:110px;resize:vertical}
.pay-methods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.pay-methods label{display:flex;align-items:center;gap:10px;padding:14px;border:1.5px solid var(--c-line);border-radius:var(--r-sm);cursor:pointer;background:var(--c-cream);transition:all var(--t-smooth)}
.pay-methods label:hover{border-color:var(--c-jade)}
.pay-methods input{accent-color:var(--c-jade)}
.pay-methods .pm-name{font-weight:600;color:var(--c-ink);font-size:14px}

/* 新闻 */
.news-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:transform var(--t-smooth)}
.news-card:hover{transform:translateY(-4px)}
.news-card img{aspect-ratio:5/3;object-fit:cover}
.news-card .body{padding:24px}
.news-card .meta{font-size:12px;color:var(--c-jade);letter-spacing:.08em;margin-bottom:10px;font-weight:600}
.news-card h3{font-size:18px;margin-bottom:10px}
.news-card p{color:var(--c-text-soft);font-size:14px}

/* 关于页 */
.about-intro{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:60px}
.about-intro img{border-radius:var(--r-lg);box-shadow:var(--shadow-hover)}
.about-intro h2{margin-bottom:18px}
.about-intro p{color:var(--c-text);margin-bottom:14px;line-height:1.85}
.value-card{background:#fff;padding:30px 26px;border-radius:var(--r-lg);border:1px solid var(--c-line);text-align:center}
.value-card .num{font-family:'Noto Serif SC',serif;font-size:36px;color:var(--c-jade);line-height:1;margin-bottom:10px}
.value-card h4{font-size:16px;color:var(--c-ink);margin-bottom:8px}
.value-card p{color:var(--c-text-soft);font-size:13px}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:50px 0}
.contact-card{background:#fff;padding:30px;border-radius:var(--r-lg);border:1px solid var(--c-line);box-shadow:var(--shadow-card)}
.contact-card .info-row{display:flex;align-items:start;gap:14px;padding:14px 0;border-bottom:1px dashed var(--c-line)}
.contact-card .info-row:last-child{border-bottom:none}
.contact-card .info-row .ic{width:38px;height:38px;border-radius:10px;background:var(--c-cream);color:var(--c-jade);display:grid;place-items:center;flex-shrink:0}
.contact-card .info-row strong{display:block;color:var(--c-ink);font-size:14px;margin-bottom:2px}
.contact-card .info-row span{color:var(--c-text-soft);font-size:13px}

@media(max-width:960px){
  h1{font-size:32px}h2{font-size:24px}
  .hero{padding:60px 0 70px}
  .hero .container,.about-intro,.case-card,.detail-grid,.cta-band,.contact-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:34px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .grid-3,.feature-list,.process,.review-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .pay-methods{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav .container{height:62px}
  .nav-links{display:none}
  .case-card img{min-height:200px}
  .detail-body{padding:28px 22px}
  .form-wrap{padding:26px;margin:30px 16px}
  .cta-band{padding:36px 26px}
  .cta-band .btn{justify-self:start}
  .page-banner{padding:54px 0 40px}
  .page-banner h1{font-size:28px}
  .container{padding:0 18px}
  .chat-panel{right:16px;width:calc(100% - 32px);max-width:320px}
  .process::before{display:none}
  .process-step{padding:14px 0}
}