:root{
  --red:#C81623; --red-d:#a50f1b; --ink:#333; --ink2:#666; --ink3:#999;
  --line:#e8e8e8; --bg:#f5f6f8; --dark:#232a35; --gold:#D4A843;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:#fff;color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
img{max-width:100%}

/* ===== 顶部黑条 ===== */
.topbar{background:#2b2b2b;color:#bbb;font-size:12px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{margin-left:22px;color:#bbb}
.topbar a:hover{color:#fff}

/* 语言切换下拉 */
.lang-switcher{position:relative;margin-left:18px;flex-shrink:0}
.lang-toggle{background:none;border:none;color:#bbb;cursor:pointer;display:inline-flex;align-items:center;gap:6px;padding:2px 0;font-size:12px;font-family:inherit;transition:.25s}
.lang-toggle:hover{color:#fff}
.lang-toggle svg{flex-shrink:0}
.lang-arrow{font-size:9px;transition:.2s;opacity:.5}
.lang-switcher.open .lang-arrow{transform:rotate(180deg);opacity:1}
.lang-dropdown{display:none;position:absolute;top:100%;right:0;margin-top:6px;background:#333;border:1px solid #444;border-radius:6px;min-width:130px;z-index:200;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.lang-switcher.open .lang-dropdown{display:block}
.lang-option{display:flex;align-items:center;gap:8px;width:100%;padding:10px 14px;background:none;border:none;color:#ccc;font-size:13px;cursor:pointer;font-family:inherit;transition:.2s;text-align:left}
.lang-option:hover{background:rgba(200,22,35,.15);color:#fff}
.lang-option.active{color:var(--red);font-weight:600;background:rgba(200,22,35,.08)}
.lang-option .flag{font-size:15px;line-height:1}

/* ===== 白底头部 ===== */
.masthead{background:#fff;border-bottom:1px solid var(--line)}
.masthead .wrap{display:flex;align-items:center;gap:26px;padding:16px 20px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo .logo-icon{width:40px;height:40px;background:var(--red);border-radius:8px;color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:19px}
.logo .logo-t1{font-size:20px;font-weight:800;color:var(--ink);line-height:1.2}
.logo .logo-t2{font-size:11px;color:var(--red);letter-spacing:.5px}
.cert-badge{border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:11px;color:var(--ink3);line-height:1.4;flex-shrink:0}
.searchbox{flex:1;display:flex;max-width:420px;margin-left:auto}
.searchbox input{flex:1;border:1px solid var(--line);border-right:none;border-radius:4px 0 0 4px;
  padding:9px 14px;font-size:13px;outline:none}
.searchbox button{background:var(--red);color:#fff;border:none;border-radius:0 4px 4px 0;padding:0 22px;font-size:13px;cursor:pointer}
.mh-btns{display:flex;gap:10px;align-items:center;flex-shrink:0}
.btn{display:inline-block;padding:10px 26px;border-radius:4px;font-size:14px;font-weight:600;transition:.25s;cursor:pointer;border:none}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-d)}
.btn-line{background:#fff;color:var(--red);border:1px solid var(--red)}
.btn-line:hover{background:var(--red);color:#fff}
.btn-dark{background:var(--dark);color:#fff}
.btn-sm{padding:7px 16px;font-size:13px}
.login-links{font-size:13px;color:var(--ink2);white-space:nowrap}
.login-links a:hover{color:var(--red)}

/* ===== 主导航（白底红下划线） ===== */
.mainnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
.mainnav .wrap{display:flex;align-items:center}
.mainnav a.navlink{padding:15px 0;margin-right:44px;font-size:15.5px;color:var(--ink);position:relative;white-space:nowrap}
.mainnav a.navlink:hover{color:var(--red)}
.mainnav a.navlink.active{color:var(--red);font-weight:600}
.mainnav a.navlink.active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:var(--red)}
.nav-drop{position:relative;margin-right:44px}
.nav-drop>span{padding:15px 0;font-size:15.5px;color:var(--ink);cursor:pointer;display:inline-block}
.nav-drop:hover>span{color:var(--red)}
.nav-drop .drop-menu{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.12);border-radius:6px;padding:8px;min-width:150px;z-index:101}
.nav-drop:hover .drop-menu{display:block}
.drop-menu a{display:block;padding:9px 14px;font-size:13.5px;color:var(--ink2);border-radius:4px}
.drop-menu a:hover{color:var(--red);background:#faf5f5}
.hamburger{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--ink);margin-left:auto}

/* ===== Hero 轮播区 ===== */
.hero{background:linear-gradient(120deg,#eef0f4,#f8f9fb);position:relative;overflow:hidden}
.hero .wrap{display:flex;align-items:center;gap:40px;padding:70px 20px 56px;min-height:420px}
.hero-left{flex:1.2}
.hero-left .star{color:var(--gold);font-size:26px}
.hero-left h1{font-size:44px;font-weight:900;color:var(--red);line-height:1.3;margin:8px 0 18px}
.hero-left h1 .ink{color:var(--ink)}
.hero-left .hero-sub{font-size:17px;color:var(--ink);line-height:2}
.hero-left .hero-sub b{color:var(--red)}
.hero-cta{display:flex;gap:14px;margin-top:32px}
.hero-right{flex:1;display:flex;gap:20px;align-items:flex-start;justify-content:flex-end}
.qr-card{background:#fff;border-radius:12px;box-shadow:0 14px 40px rgba(0,0,0,.1);padding:22px;text-align:center;width:210px;flex-shrink:0}
.qr-img{width:140px;height:140px;margin:0 auto 12px;background:repeating-conic-gradient(#333 0 25%,#fff 0 50%) 0 0/16px 16px;border:6px solid #fff;outline:1px solid #ddd}
.qr-card h4{font-size:14px;margin-bottom:4px}
.qr-card p{font-size:12px;color:var(--ink3)}
.hero-visual{flex:1;min-width:260px}
.cert-stack{background:#fff;border-radius:12px;box-shadow:0 14px 40px rgba(0,0,0,.08);padding:26px}
.cert-stack h4{font-size:15px;margin-bottom:14px;color:var(--ink)}
.cert-row{display:flex;gap:12px;flex-wrap:wrap}
.cert-item{flex:1;min-width:100px;border:1px solid var(--line);border-radius:8px;padding:14px 10px;text-align:center;font-size:12px;color:var(--ink2)}
.cert-item .ci{font-size:24px;margin-bottom:6px}
/* 轮播缩略卡 */
.hero-thumbs{background:#fff;border-top:1px solid var(--line)}
.hero-thumbs .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.thumb{padding:18px 20px;border-left:1px solid var(--line);cursor:pointer;position:relative}
.thumb:first-child{border-left:none}
.thumb h5{font-size:14.5px;color:var(--ink)}
.thumb p{font-size:12px;color:var(--ink3);margin-top:4px}
.thumb.active::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--red)}
.thumb.active h5{color:var(--red)}

/* ===== 通用 section ===== */
section{padding:64px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:30px;font-weight:800;color:var(--ink)}
.sec-head .en{font-size:12px;color:var(--ink3);letter-spacing:2px;margin-top:6px}
.sec-head.left{text-align:left}
.bg-grey{background:var(--bg)}

/* 图片卡（占位图） */
.img-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line)}
.img-card{background:#fff;border-left:1px solid var(--line);padding:26px 18px;text-align:center;transition:.3s}
.img-card:first-child{border-left:none}
.img-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.08);transform:translateY(-4px)}
.img-card .ph{height:110px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:38px;margin-bottom:14px;color:#fff}
.ph1{background:linear-gradient(135deg,#4a6fa5,#2c4870)}
.ph2{background:linear-gradient(135deg,#c81623,#7d0e17)}
.ph3{background:linear-gradient(135deg,#3a8dde,#1c5a9e)}
.ph4{background:linear-gradient(135deg,#d4a843,#9c7a1f)}
.ph5{background:linear-gradient(135deg,#5a6a86,#2f3a4e)}
.img-card h4{font-size:14.5px;margin-bottom:6px}
.img-card p{font-size:12px;color:var(--ink3)}

/* 解决方案 Tabs */
.svc-tabs{display:flex;justify-content:center;gap:0;border-bottom:2px solid var(--line);margin-bottom:40px;flex-wrap:wrap}
.svc-tab{padding:14px 30px;font-size:16px;color:var(--ink2);cursor:pointer;position:relative;white-space:nowrap}
.svc-tab.active{color:var(--red);font-weight:700}
.svc-tab.active::after{content:"";position:absolute;left:20%;right:20%;bottom:-2px;height:3px;background:var(--red)}
.svc-panel{display:none;gap:40px;align-items:flex-start}
.svc-panel.active{display:flex}
.svc-intro{flex:1}
.svc-intro h3{font-size:22px;margin-bottom:12px}
.svc-intro h3 span{color:var(--red)}
.svc-intro p{color:var(--ink2);font-size:14px;margin-bottom:20px}
.svc-intro .promise{display:inline-block;background:#fdf0f0;border:1px solid #f3c1c4;color:var(--red);
  border-radius:4px;padding:8px 16px;font-size:13px;font-weight:600;margin-bottom:22px}
.svc-visual{flex:1;min-height:230px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:64px;color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{border:1px solid var(--line);background:#fff;border-radius:4px;padding:7px 16px;font-size:13px;color:var(--ink2)}
.chip:hover{border-color:var(--red);color:var(--red)}
.chip.hot{border-color:var(--red);color:var(--red);background:#fdf0f0;font-weight:600}

/* 实力4卡 */
.feat4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:34px 24px;text-align:center;transition:.3s}
.feat:hover{box-shadow:0 12px 34px rgba(0,0,0,.08);transform:translateY(-4px)}
.feat .fi{width:64px;height:64px;border-radius:50%;background:#fdf0f0;color:var(--red);font-size:28px;
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.feat h4{font-size:17px;margin-bottom:8px}
.feat p{font-size:13px;color:var(--ink3)}

/* 专家团队 */
.team3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.team-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.3s}
.team-card:hover{box-shadow:0 12px 34px rgba(0,0,0,.1)}
.team-photo{height:190px;display:flex;align-items:center;justify-content:center;font-size:56px;color:#fff;font-weight:900}
.team-body{padding:24px}
.team-body h4{font-size:18px}
.team-body .role{color:var(--red);font-size:12.5px;margin:4px 0 12px}
.team-body blockquote{border-left:3px solid var(--red);padding-left:12px;color:var(--ink);font-size:13.5px;margin-bottom:12px}
.team-body p{font-size:12.5px;color:var(--ink3)}

/* 服务保障 */
.guar5{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.guar{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px 16px;text-align:center}
.guar .gi{font-size:30px;margin-bottom:12px}
.guar h5{font-size:15px;margin-bottom:6px}
.guar p{font-size:12px;color:var(--ink3)}
.cert-list{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:34px}
.cert-badge2{border:1px solid var(--line);border-radius:6px;padding:12px 22px;font-size:13px;color:var(--ink2);background:#fff}
.cert-badge2 b{color:var(--red)}

/* 致谢墙 */
.journal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.journal{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;transition:.3s}
.journal:hover{box-shadow:0 10px 26px rgba(0,0,0,.08)}
.journal .jname{font-size:14.5px;font-weight:700;min-height:42px;color:var(--ink)}
.journal .if{color:var(--red);font-size:28px;font-weight:900;margin:8px 0 2px}
.journal .if small{font-size:12px;color:var(--ink3);font-weight:400}
.journal .field{color:var(--ink3);font-size:12px}

/* 合作伙伴 */
.partners{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner{border:1px solid var(--line);border-radius:8px;padding:24px 12px;text-align:center;color:var(--ink3);
  font-size:13.5px;background:#fff;filter:grayscale(1);opacity:.7;transition:.3s}
.partner:hover{filter:none;opacity:1;color:var(--ink);border-color:#ccc}

/* 服务流程 */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;counter-reset:step}
.flow .step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px 14px;text-align:center;position:relative}
.flow .step::before{counter-increment:step;content:counter(step);display:inline-flex;width:32px;height:32px;border-radius:50%;
  background:var(--red);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:10px}
.flow .step h4{font-size:14.5px;margin-bottom:4px}
.flow .step p{font-size:12px;color:var(--ink3)}

/* 禁区 */
.excl{background:#111;color:#eee;border-radius:12px;padding:56px}
.excl h2{color:#fff;font-size:28px;text-align:center}
.excl .en{color:#888;text-align:center;font-size:12px;letter-spacing:2px;margin-top:6px}
.excl-cols{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:36px}
.excl-list{list-style:none}
.excl-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid #2a2a2a;font-size:14.5px}
.excl-list .no{color:#999}
.excl-list .yes{color:#fff;font-weight:600}
.excl-list .mk{font-size:17px}
.excl-list .mk.x{color:var(--red)}
.excl-list .mk.v{color:#7ec98f}
.excl-note{text-align:center;color:#888;font-size:13px;margin-top:28px}

/* 心声 */
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:32px}
.quote-card .mark{font-size:44px;color:var(--red);line-height:.4;font-family:Georgia,serif}
.quote-card p{font-size:15px;margin:18px 0 14px;color:var(--ink)}
.quote-card .who{font-size:12.5px;color:var(--ink3)}

/* 页尾表单 */
.book{background:linear-gradient(160deg,#2b2b2b,#1a1a1a);color:#fff;text-align:center}
.book h2{color:#fff}
.book .sec-head .en{color:#888}
.scarce{display:inline-block;background:rgba(200,22,35,.18);border:1px solid rgba(200,22,35,.6);color:#ff9aa1;
  padding:8px 22px;border-radius:99px;font-size:13.5px;margin-bottom:26px}
.book-form{max-width:760px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.book-form input,.book-form select{background:rgba(255,255,255,.07);border:1px solid #444;border-radius:4px;
  padding:13px 16px;color:#fff;font-size:14px;font-family:inherit}
.book-form input::placeholder{color:#888}
.book-form input:focus,.book-form select:focus{outline:none;border-color:var(--red)}
.book-form .full{grid-column:1/-1}
select option{background:#2b2b2b;color:#fff}
.book-note{color:#777;font-size:12px;margin-top:16px}
.form-result{background:rgba(212,168,67,.12);border:1px solid var(--gold);border-radius:8px;padding:20px;text-align:center}
.form-result b{color:var(--gold)}
.form-result span{color:#bbb;font-size:13px}

/* 页脚 */
footer{background:var(--dark);color:#9aa3b2;padding:56px 0 26px}
.foot-grid{display:grid;grid-template-columns:2fr 1.2fr 1fr 1.2fr;gap:36px}
.foot-grid h5{color:#fff;font-size:15px;margin-bottom:16px}
.foot-grid a,.foot-grid p{display:block;font-size:13px;margin-bottom:9px;color:#9aa3b2}
.foot-grid a:hover{color:#fff}
.foot-logo{color:#fff;font-size:19px;font-weight:800}
.foot-logo span{color:var(--red)}
.foot-bottom{text-align:center;font-size:12px;margin-top:40px;padding-top:20px;border-top:1px solid #333c4b;color:#5d6470}

/* 悬浮件 */
.float-left{position:fixed;left:0;top:45%;z-index:99;background:var(--red);color:#fff;writing-mode:vertical-lr;
  padding:18px 8px;border-radius:0 8px 8px 0;font-size:13px;letter-spacing:3px;cursor:pointer;box-shadow:2px 4px 14px rgba(0,0,0,.2)}
.chat-widget{position:fixed;right:18px;bottom:18px;z-index:99;width:250px;background:#fff;border-radius:10px;
  box-shadow:0 14px 44px rgba(0,0,0,.22);overflow:hidden;display:none}
.chat-widget.show{display:block}
.chat-head{background:var(--red);color:#fff;padding:12px 16px;font-size:14px;display:flex;justify-content:space-between;align-items:center}
.chat-head span{cursor:pointer}
.chat-body{padding:16px;font-size:12.5px;color:var(--ink2)}
.chat-body .qr-img{width:110px;height:110px;background-size:12px 12px;margin-bottom:10px}
.chat-fab{position:fixed;right:18px;bottom:18px;z-index:98;background:var(--red);color:#fff;border-radius:50%;
  width:52px;height:52px;display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;box-shadow:0 8px 24px rgba(200,22,35,.4)}
.chat-widget.show ~ .chat-fab{display:none}

/* 内页 Banner */
.page-hero{background:linear-gradient(120deg,#eef0f4,#f8f9fb);padding:56px 0}
.page-hero .crumb{font-size:12.5px;color:var(--ink3);margin-bottom:14px}
.page-hero .crumb a:hover{color:var(--red)}
.page-hero h1{font-size:36px;font-weight:900;color:var(--ink)}
.page-hero h1 span{color:var(--red)}
.page-hero .lead{color:var(--ink2);margin-top:10px;max-width:760px}
.promise-bar{display:inline-block;background:#fdf0f0;border:1px solid #f3c1c4;color:var(--red);
  border-radius:4px;padding:10px 20px;font-size:14px;font-weight:600;margin-top:22px}

/* 服务项卡 */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.svc{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;display:flex;flex-direction:column;transition:.3s}
.svc:hover{box-shadow:0 10px 28px rgba(0,0,0,.08);transform:translateY(-3px)}
.svc h4{font-size:16px;margin-bottom:6px}
.svc h4 .hotmark{color:var(--red);font-size:12px}
.svc p{color:var(--ink3);font-size:12.5px;flex:1}
.svc .slot{font-size:12px;margin:14px 0 10px}
.slot.ok{color:#2e9e5b}
.slot.busy{color:var(--gold)}
.svc .btn{text-align:center}

/* FAQ */
.faq{max-width:840px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:8px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq-q{padding:18px 24px;font-size:15px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:"+";color:var(--red);font-size:20px;transition:.3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--ink2);font-size:13.5px}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:0 24px 20px}

/* 对比表 */
table.vs{width:100%;border-collapse:collapse;font-size:14px;background:#fff}
table.vs th,table.vs td{border:1px solid var(--line);padding:15px 20px;text-align:left}
table.vs th{background:#fafafa;color:var(--ink)}
table.vs td:first-child{color:var(--ink2)}
table.vs td.win{color:var(--red);font-weight:700}

/* 动效 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media(max-width:1024px){
  .img-cards{grid-template-columns:repeat(3,1fr)}
  .img-card{border-top:1px solid var(--line)}
  .feat4,.journal-grid,.svc-grid{grid-template-columns:repeat(2,1fr)}
  .guar5{grid-template-columns:repeat(3,1fr)}
  .team3,.quotes{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(3,1fr)}
  .hero .wrap{flex-direction:column;align-items:flex-start}
  .hero-thumbs .wrap{grid-template-columns:repeat(2,1fr)}
  .thumb{border-top:1px solid var(--line)}
  .mainnav .wrap{flex-wrap:wrap}
  .mainnav a.navlink{display:none}
  .mainnav a.navlink.active{display:block}
  .foot-grid{grid-template-columns:1fr 1fr}
  .searchbox{display:none}
  .cert-badge{display:none}
}
@media(max-width:640px){
  .img-cards,.feat4,.journal-grid,.svc-grid,.guar5,.partners,.book-form,.excl-cols{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .hero-left h1{font-size:28px}
  section{padding:44px 0}
  .excl{padding:36px 22px}

  /* 顶部栏：允许换行 */
  .topbar .wrap{flex-wrap:wrap;height:auto;padding:6px 12px;gap:4px;justify-content:center;text-align:center}
  .topbar a{margin-left:12px}

  /* 头部：缩小间距，允许换行 */
  .masthead .wrap{flex-wrap:wrap;gap:10px;padding:10px 12px}
  .logo .logo-t1{font-size:16px}
  .logo .logo-t2{font-size:10px}
  .logo .logo-icon{width:34px;height:34px;font-size:16px}
  .mh-btns{gap:6px}
  .mh-btns .btn-sm{padding:5px 10px;font-size:11px}
  .login-links{font-size:11px}

  /* Hero 区：按钮换行，右侧堆叠 */
  .hero .wrap{padding:40px 12px 36px}
  .hero-left h1{font-size:26px}
  .hero-left .hero-sub{font-size:14px;line-height:1.7}
  .hero-cta{flex-wrap:wrap;gap:10px}
  .hero-cta .btn{font-size:13px;padding:10px 18px;text-align:center}
  .hero-right{flex-direction:column;align-items:stretch}
  .qr-card{width:100%}
  .cert-stack{padding:18px}
  .cert-row .cert-item{min-width:70px;font-size:11px}
  .hero-thumbs .wrap{grid-template-columns:1fr 1fr}

  /* 服务面板：纵向排列 */
  .svc-panel.active{flex-direction:column;gap:20px}
  .svc-visual{min-height:160px}

  /* 导航下拉：触屏点击展开 */
  .nav-drop .drop-menu{display:none}
  .nav-drop.open .drop-menu{display:block}
  .mainnav .wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;gap:0}
  .mainnav a.navlink,.nav-drop{margin-right:24px}
  .nav-drop>span,.mainnav a.navlink{font-size:14px}

  /* 悬浮件：避免重叠 */
  .float-left{font-size:11px;padding:12px 6px}
  .chat-widget{width:220px;right:8px;bottom:14px}

  /* 合作伙伴：缩小字号 */
  .partner{font-size:12px;padding:16px 10px}

  /* 致谢墙 */
  .journal .jname{font-size:13px}
  .journal .if{font-size:22px}

  /* 标题 */
  .sec-head h2{font-size:22px}
  .page-hero h1{font-size:26px}

  /* 页脚 */
  .foot-grid{grid-template-columns:1fr;gap:28px}

  /* 认证徽章列表 */
  .cert-list{flex-direction:column;align-items:stretch}
  .cert-badge2{text-align:center}

  /* 图片卡 */
  .img-cards{border:none}
  .img-card{border:1px solid var(--line);border-radius:8px}
  .img-card .ph{height:80px;font-size:28px}
}