/* ============================================================
   jzgcms 前台样式 · 聚珍阁奢侈品回收 · 轻奢时尚大气风
   设计：象牙白底 / 墨黑字 / 香槟金细线 / 大留白
   SEO要点：移动优先、文本优先渲染、图片懒加载、无JS依赖首屏
   ============================================================ */
:root{
  --gold:#b08d57; --gold-deep:#8f6f3f; --gold-soft:#e8d9bf;
  --black:#1a1a1a; --ink:#2b2b2b;
  --ivory:#faf8f4; --gray:#f4f1ea; --line:#e8e2d5;
  --text:#2c2c2c; --muted:#8a8478;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:linear-gradient(180deg,#faf8f4 0%,#fff 200px,#fff 100%);font-size:15px;line-height:1.75;letter-spacing:.2px}
a{color:var(--ink);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold-deep)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 顶部信息条（浅米白） ---------- */
.topbar{background:var(--ivory);color:#9a9385;font-size:12px;padding:6px 0;border-bottom:1px solid #efe9dd}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:4px}
.topbar a{color:#9a9385}
.topbar a:hover{color:var(--gold-deep)}
.topbar .tel{color:var(--gold-deep);font-weight:600;font-size:13px;letter-spacing:.5px}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(0,0,0,.02)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo img{height:46px;width:auto}
.logo .logo-txt{line-height:1.25}
.logo .logo-txt b{font-size:20px;letter-spacing:2px;color:var(--black);display:block;font-weight:700}
.logo .logo-txt span{font-size:10px;color:var(--gold-deep);letter-spacing:3px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:9px 14px;font-size:14.5px;letter-spacing:1px;color:#3a3a3a;position:relative}
.nav a:hover,.nav a.active{color:var(--gold-deep)}
.nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--gold)}
.nav .has-sub{position:relative}
.nav .sub{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);min-width:180px;box-shadow:0 12px 32px rgba(0,0,0,.08);display:none;padding:8px 0}
.nav .has-sub:hover .sub{display:block}
.nav .sub a{display:block;padding:9px 18px;font-size:14px}
.nav .sub a.active::after{display:none}
.header-tel{flex-shrink:0;text-align:right}
.header-tel .lbl{font-size:10px;color:var(--muted);letter-spacing:2px;text-transform:uppercase}
.header-tel a{font-size:19px;font-weight:700;color:var(--black);letter-spacing:1px;font-style:normal}
.nav-toggle{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--black)}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:12px;color:var(--muted);padding:14px 0;border-bottom:1px solid var(--line);margin-bottom:24px;letter-spacing:1px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--gold-deep)}
.breadcrumb .sep{margin:0 8px;color:#cfc8b8}
.breadcrumb .cur{color:var(--text)}

/* ---------- 首页 Hero（纯净暖金渐变底） ---------- */
.hero{position:relative;background:linear-gradient(180deg,#faf8f4 0%,#fdf6e8 100%);color:var(--ink);overflow:hidden;border-bottom:1px solid var(--line)}
.hero .container{position:relative;z-index:2;padding:76px 20px 80px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:42px;line-height:1.3;margin-bottom:22px;font-weight:800;letter-spacing:1px;color:var(--black)}
.hero h1 em{font-style:normal;color:var(--gold-deep);position:relative}
.hero h1 em::after{content:'';position:absolute;bottom:2px;left:0;right:0;height:8px;background:rgba(201,164,92,.2);z-index:-1}
.hero .sub{color:#5c5648;font-size:16px;margin-bottom:32px;max-width:560px;line-height:1.9}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:4px;font-size:15px;letter-spacing:2px;cursor:pointer;border:0;transition:all .25s}
.btn-gold{background:linear-gradient(135deg,#b08d57 0%,#c9a45c 100%);color:#fff;box-shadow:0 8px 24px rgba(176,141,87,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(176,141,87,.4)}
.btn-ghost{background:#fff;border:1.5px solid #c8c0ae;color:var(--ink)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-deep);background:#fffdf8}
.hero .trust{display:flex;gap:44px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:26px}
.hero .trust .num{font-size:34px;font-weight:700;color:var(--gold-deep);font-family:Georgia,"Times New Roman",serif;letter-spacing:1px}
.hero .trust .lbl{font-size:12px;color:var(--muted);letter-spacing:2px;margin-top:2px}
.hero .hero-card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:8px;padding:32px;box-shadow:0 24px 60px rgba(60,45,20,.1)}
.hero .hero-card h3{color:var(--black);font-size:16px;margin-bottom:14px;letter-spacing:2px;font-weight:600}
.hero .hero-card ul li{font-size:14px;color:#4a463c;padding:6px 0;padding-left:20px;position:relative;border-bottom:1px dashed #eee7d8}
.hero .hero-card ul li:last-child{border-bottom:0}
.hero .hero-card ul li::before{content:"—";position:absolute;left:0;color:var(--gold)}
.hero .hero-card .phone-big{font-size:24px;font-weight:700;color:var(--black);margin-top:14px;letter-spacing:1px}
.hero .hero-card .phone-big a{color:var(--black)}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section.gray{background:var(--gray)}
.section.dark{background:var(--black);color:#cfc9bb}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:30px;color:var(--black);font-weight:600;letter-spacing:2px}
.sec-head h2 span{color:var(--gold-deep)}
.sec-head p{color:var(--muted);margin-top:10px;font-size:14px;letter-spacing:1px}
.sec-head .en{display:block;font-size:11px;letter-spacing:6px;color:var(--gold);text-transform:uppercase;margin-bottom:10px}
.sec-head .en::after{content:"";display:block;width:40px;height:1px;background:var(--gold);margin:10px auto 0}
.section.dark .sec-head h2{color:#fff}

/* ---------- 核心服务卡片 ---------- */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc{background:#fff;border:1px solid var(--line);padding:0;transition:all .3s;min-height:280px;display:flex;align-items:flex-end;position:relative;overflow:hidden}
.svc-bag{background:linear-gradient(135deg,rgba(15,13,10,.45),rgba(15,13,10,.25)),url('/static/img/bag-new.jpg') center/cover}
.svc-watch{background:linear-gradient(135deg,rgba(15,13,10,.45),rgba(15,13,10,.25)),url('/static/img/watch-new.jpg') center/cover}
.svc-jewelry{background:linear-gradient(135deg,rgba(15,13,10,.45),rgba(15,13,10,.25)),url('/static/img/jewelry-new.jpg') center/cover}
.svc:hover{box-shadow:0 20px 50px rgba(0,0,0,.15);transform:translateY(-4px)}
.svc-overlay{padding:32px 28px;width:100%;background:linear-gradient(to top,rgba(0,0,0,.55) 0%,rgba(0,0,0,.15) 100%)}
.svc-overlay h3{font-size:20px;margin-bottom:10px;letter-spacing:1px}
.svc-overlay h3 a{color:#fff}
.svc-overlay p{color:rgba(255,255,255,.8);font-size:13px;line-height:1.7;margin-bottom:12px}
.svc-overlay .more{color:var(--gold-light,#d4af37);font-size:13px}
.svc .ico{display:none}
.svc p{font-size:14px;color:var(--muted);margin-bottom:16px;line-height:1.85}
.svc .more{font-size:13px;color:var(--gold-deep);letter-spacing:1px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{background:#fff;padding:24px 18px;border:1px solid var(--line);text-align:center;position:relative;transition:all .3s;border-radius:6px}
.step:hover{border-color:var(--gold);box-shadow:0 12px 32px rgba(176,141,87,.12);transform:translateY(-3px)}
.step::before{counter-increment:step;content:"0" counter(step);font-family:Georgia,serif;font-size:42px;font-weight:700;color:var(--gold-soft);display:block;line-height:1;margin-bottom:10px}
.step h3{font-size:16px;margin-bottom:6px;letter-spacing:1px}
.step p{font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- 品牌墙 / 区域墙 ---------- */
.brand-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.brand-item{background:#fff;padding:30px 12px;text-align:center;transition:all .3s;cursor:pointer}
.brand-item:hover{background:linear-gradient(135deg,#fffdf8 0%,#faf0dd 100%);transform:scale(1.03);z-index:1;box-shadow:0 8px 24px rgba(176,141,87,.15)}
.brand-item:hover .b-zh{color:var(--gold-deep)}
.brand-item .b-zh{font-size:18px;font-weight:600;color:var(--black);letter-spacing:1px;transition:color .25s}
.brand-item .b-en{font-size:10px;color:var(--muted);letter-spacing:1px;margin-top:4px}
.brand-item .b-tag{display:inline-block;margin-top:10px;font-size:11px;color:var(--gold-deep);border:1px solid var(--gold-soft);padding:3px 12px;letter-spacing:1px}
.city-wall{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.city-item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);padding:14px;text-align:center;font-size:14px;color:#d8d2c4;letter-spacing:1px;transition:all .25s}
.city-item:hover{border-color:var(--gold);color:#fff;background:rgba(255,255,255,.08)}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv{display:flex;gap:16px;background:#fff;border:1px solid var(--line);padding:26px;transition:border-color .25s}
.adv:hover{border-color:var(--gold)}
.adv .a-ico{font-size:26px;flex-shrink:0;color:var(--gold-deep)}
.adv h3{font-size:16px;margin-bottom:6px;letter-spacing:1px}
.adv p{font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- 文章列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid var(--line);overflow:hidden;transition:all .3s;border-radius:6px}
.post-card:hover{box-shadow:0 24px 60px rgba(60,45,20,.15);border-color:transparent;transform:translateY(-6px)}
.post-card .pc-body{padding:20px}
.post-card h3{font-size:16px;line-height:1.55;margin-bottom:8px}
.post-card h3 a{color:var(--black)}
.post-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.8}
.post-card .pc-meta{font-size:12px;color:#b3aca0;margin-top:12px;display:flex;justify-content:space-between;letter-spacing:1px}
.post-card .pc-img{height:160px;overflow:hidden;background:var(--ivory);position:relative}
.post-card .pc-img img{width:100%;height:100%;object-fit:cover}
.post-card .pc-img .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#c4b89a;font-size:14px;letter-spacing:2px}
.post-card .pc-thumb{display:block;height:160px;overflow:hidden;background:var(--ivory)}
.post-card .pc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.post-card:hover .pc-thumb img{transform:scale(1.05)}

/* ---------- 文章正文首图 ---------- */
.article-cover{margin:20px 0 24px;overflow:hidden;border:1px solid var(--line)}
.article-cover img{width:100%;max-height:440px;object-fit:cover;display:block}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);background:transparent;margin-bottom:0}
.faq-item .q{padding:20px 4px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:15px;letter-spacing:.5s}
.faq-item .q::after{content:"+";font-size:22px;color:var(--gold);font-weight:300}
.faq-item.open .q::after{content:"−"}
.faq-item .a{display:none;padding:0 4px 20px;font-size:14px;color:#5c5648;line-height:1.9}
.faq-item.open .a{display:block}

/* ---------- 表单 ---------- */
.form-wrap{background:#fff;border:1px solid var(--line);padding:44px 40px;max-width:780px;margin:0 auto}
.form-wrap h2{font-size:24px;margin-bottom:6px;text-align:center;letter-spacing:2px;font-weight:600}
.form-wrap .f-sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:28px;letter-spacing:1px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid .full{grid-column:1/-1}
.form-grid label{font-size:12px;font-weight:600;display:block;margin-bottom:6px;letter-spacing:1.5px;color:#5c5648}
.form-grid input,.form-grid select,.form-grid textarea{width:100%;padding:11px 13px;border:1px solid #ddd5c4;border-radius:0;font-size:14px;font-family:inherit;background:#fff}
.form-grid textarea{min-height:96px;resize:vertical}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{outline:none;border-color:var(--gold)}
.form-submit{width:100%;margin-top:20px;background:var(--black);border:0;color:#fff;padding:14px;font-size:15px;letter-spacing:4px;cursor:pointer;transition:background .25s}
.form-submit:hover{background:var(--gold-deep)}
.form-tip{font-size:12px;color:var(--muted);text-align:center;margin-top:12px;letter-spacing:1px}
.form-msg{padding:11px;border-radius:0;margin-top:14px;text-align:center;display:none;font-size:14px}
.form-msg.ok{background:#eef6f0;color:#1f6b3f;display:block}
.form-msg.err{background:#fbeeee;color:#a83226;display:block}

/* ---------- 文章页 ---------- */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.article-main{background:#fff;padding:36px;border:1px solid var(--line)}
.article-main h1{font-size:28px;line-height:1.5;margin-bottom:14px;letter-spacing:1px}
.article-meta{font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:22px;display:flex;gap:18px;flex-wrap:wrap;letter-spacing:1px}
.article-body{font-size:16px;line-height:1.9}
.article-body p{margin-bottom:16px}
.article-body h2{font-size:22px;margin:32px 0 16px;padding-left:14px;border-left:3px solid var(--gold);letter-spacing:1px}
.article-body h3{font-size:18px;margin:24px 0 12px}
.article-body ul,.article-body ol{margin:0 0 16px 24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.article-body th{background:var(--gray);font-weight:600}
.article-body blockquote{border-left:3px solid var(--gold);background:var(--ivory);padding:14px 18px;margin:18px 0;color:#6b6455}
.article-body img{margin:12px 0}
.article-body strong{color:var(--black)}
.related-box{margin-top:28px;border-top:1px solid var(--line);padding-top:20px}
.related-box h3{font-size:17px;margin-bottom:14px;color:var(--black);letter-spacing:1px}
.related-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.related-list time{color:#bbb;font-size:12px;flex-shrink:0}
.prev-next{display:flex;justify-content:space-between;gap:16px;margin-top:24px;font-size:14px}
.brand-links,.city-links{margin-top:22px}
.brand-links h3,.city-links h3{font-size:15px;color:var(--black);margin-bottom:10px;letter-spacing:1px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{font-size:13px;background:var(--gray);border:1px solid var(--line);padding:6px 14px;letter-spacing:1px}
.tag-cloud a:hover{border-color:var(--gold);color:var(--gold-deep)}

/* ---------- 侧栏 ---------- */
.sidebar .side-box{background:#fff;border:1px solid var(--line);padding:24px;margin-bottom:22px}
.sidebar .side-box h3{font-size:15px;margin-bottom:14px;color:var(--black);padding-bottom:12px;border-bottom:1px solid var(--line);letter-spacing:2px}
.side-box .hot-list li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.side-box .hot-list li:last-child{border-bottom:0}
.side-contact{background:var(--black)!important;color:#fff;border-top:2px solid var(--gold)}
.side-contact h3{color:var(--gold)!important;border-color:rgba(255,255,255,.15)!important;letter-spacing:2px}
.side-contact .s-tel{font-size:23px;font-weight:700;margin:12px 0;color:#fff;letter-spacing:1px}
.side-contact a{color:#fff}
.side-contact .s-btn{display:block;text-align:center;background:var(--gold);color:#1a1a1a;padding:11px;letter-spacing:2px;font-weight:600;margin-top:12px}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.contact-info{background:var(--black);color:#cfc9bb;padding:36px}
.contact-info h2{color:#fff;font-size:22px;margin-bottom:18px;letter-spacing:2px}
.contact-info li{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:14px}
.contact-info li b{color:var(--gold);display:inline-block;min-width:70px;font-weight:600}
.contact-info .big-tel{font-size:25px;font-weight:700;color:#fff;margin:14px 0;letter-spacing:1px}

/* ---------- GEO 事实块 ---------- */
.geo-facts{background:var(--gray);border-top:2px solid var(--gold);padding:30px;margin:48px 0}
.geo-facts h2{font-size:20px;margin-bottom:14px;letter-spacing:1px}
.geo-fact-list{display:grid;grid-template-columns:1fr 1fr;gap:6px 28px}
.geo-fact-list li{font-size:14px;padding:7px 0;border-bottom:1px dashed var(--line)}
.geo-facts a{color:var(--gold-deep);font-weight:600}

/* ---------- 浮动客服 ---------- */
.float-contact{position:fixed;right:18px;bottom:96px;z-index:999;display:flex;flex-direction:column;gap:12px}
.float-btn{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(0,0,0,.2);cursor:pointer;font-size:24px;color:#fff;position:relative;transition:transform .2s}
.float-btn:hover{transform:scale(1.08)}
.fb-wechat{background:linear-gradient(135deg,#3cb371,#1e8e4e)}
.fb-tel{background:var(--black)}
.fb-top{background:#8a8478;display:none}
.float-wechat-panel{position:fixed;right:18px;bottom:156px;width:250px;background:#fff;border-radius:4px;box-shadow:0 16px 48px rgba(0,0,0,.18);padding:20px;text-align:center;z-index:1000;display:none;border-top:2px solid var(--gold)}
.float-wechat-panel.show{display:block}
.float-wechat-panel img{width:156px;height:156px;margin:0 auto 12px;border-radius:4px;background:var(--ivory);object-fit:contain}
.float-wechat-panel .w-id{font-size:16px;font-weight:700;color:var(--black);margin-bottom:10px;user-select:all;letter-spacing:1px}
.float-wechat-panel .w-actions{display:flex;gap:8px}
.float-wechat-panel .w-actions a,.float-wechat-panel .w-actions button{flex:1;font-size:13px;padding:10px 0;border-radius:0;border:0;cursor:pointer;text-align:center;letter-spacing:1px}
.w-copy{background:var(--gray);color:var(--gold-deep);font-weight:600}
.w-add{background:#2e9e5f;color:#fff;font-weight:600}
.w-add:hover{color:#fff}
.float-wechat-panel .w-tip{font-size:11px;color:var(--muted);margin-top:10px}

/* ---------- 底部 ---------- */
.site-footer{background:var(--black);color:#9a9388;font-size:13px;margin-top:24px}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding:52px 0 34px}
.site-footer h3{color:#fff;font-size:14px;margin-bottom:18px;letter-spacing:3px;font-weight:600}
.site-footer a{color:#9a9388}
.site-footer a:hover{color:var(--gold)}
.footer-main ul li{padding:5px 0}
.footer-about p{margin-bottom:14px;line-height:2}
.footer-about .f-tel{font-size:21px;font-weight:700;color:var(--gold);letter-spacing:1px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:12px;color:#7a7568;letter-spacing:1px}
.footer-bottom a{color:#7a7568}
.footer-bottom a:hover{color:var(--gold)}

/* ---------- 分页 ---------- */
.pagination{display:flex;justify-content:center;gap:6px;margin:34px 0;list-style:none}
.pagination li a,.pagination li span{display:inline-block;min-width:38px;padding:9px 13px;border:1px solid var(--line);font-size:14px;text-align:center}
.pagination li.active span{background:var(--black);border-color:var(--black);color:#fff;font-weight:600}
.pagination a:hover{border-color:var(--gold);color:var(--gold-deep)}

/* ---------- 列表页头部描述 ---------- */
.cat-intro{background:var(--gray);padding:28px;margin-bottom:28px;font-size:14px}
.cat-intro h1{font-size:25px;margin-bottom:10px;letter-spacing:1px}
.cat-intro p{color:#5c5648;line-height:1.9}

/* ---------- 搜索 ---------- */
.search-form{display:flex;gap:10px;max-width:560px;margin:0 auto 34px}
.search-form input{flex:1;padding:13px 18px;border:1px solid var(--line);font-size:15px}
.search-form button{background:var(--black);color:#fff;border:0;padding:0 28px;cursor:pointer;font-size:14px;letter-spacing:2px}

/* ---------- 页脚关键词 ---------- */
.footer-kw{color:#7a7568;font-size:12px;line-height:2.2}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .services{grid-template-columns:repeat(2,1fr)}
  .brand-wall,.city-wall{grid-template-columns:repeat(3,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .article-layout{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr}
  .hero .container{grid-template-columns:1fr;padding:56px 20px}
  .contact-grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
}
@media (max-width:720px){
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:14px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.06)}
  .nav.open{display:flex}
  .nav .sub{position:static;display:none;border:0;padding-left:16px;box-shadow:none}
  .nav .has-sub.open .sub{display:block}
  .nav-toggle{display:block}
  .header-tel{display:none}
  .services{grid-template-columns:1fr;gap:14px}
  .news-grid{grid-template-columns:1fr;gap:14px}
  .brand-wall,.city-wall{grid-template-columns:repeat(2,1fr);gap:10px}
  .adv-grid{grid-template-columns:1fr;gap:12px}
  .steps{grid-template-columns:1fr;gap:12px}
  .geo-fact-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .container{padding:0 16px}
  /* 手机端视觉冲击力 */
  .hero{padding:0}
  .hero .container{padding:36px 16px 44px;gap:24px}
  .hero h1{font-size:26px;line-height:1.35;letter-spacing:.3px}
  .hero .sub{font-size:14px;line-height:1.8;margin-bottom:20px}
  .hero .cta{flex-direction:column;gap:10px;margin-bottom:22px}
  .hero .cta .btn{width:100%;justify-content:center;padding:14px;font-size:15px}
  .hero .trust{gap:14px;padding-top:18px;flex-wrap:wrap}
  .hero .trust .num{font-size:22px}
  .hero .trust .lbl{font-size:11px}
  .hero .hero-card{padding:20px 16px}
  .hero .hero-card .phone-big{font-size:19px}
  .sec-head h2{font-size:21px}
  .sec-head{margin-bottom:24px}
  .sec-head p{font-size:13px}
  .section{padding:36px 0}
  .svc{min-height:200px}
  .svc-overlay{padding:20px 16px}
  .svc-overlay h3{font-size:17px;margin-bottom:6px}
  .svc-overlay p{font-size:13px;line-height:1.6}
  .post-card .pc-img,.post-card .pc-thumb{height:160px}
  .pc-body{padding:16px}
  .pc-body h3{font-size:16px;margin-bottom:6px}
  .pc-body p{font-size:13px}
  .article-main{padding:16px 14px}
  .article-main h1{font-size:20px}
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{font-size:18px;margin:20px 0 10px}
  .float-btn{width:46px;height:46px;font-size:20px;right:14px}
  .float-wechat-panel{right:12px;bottom:120px;width:220px}
  /* 案例卡片手机端优化 */
  .post-card h3 a{font-size:16px;line-height:1.4}
  /* FAQ手机端 */
  .faq-item{padding:14px}
  .faq-q{font-size:15px}
  /* 底部表单 */
  .form-wrap{padding:24px 16px}
}