/* ===== 深跨链官网 · 全局样式 ===== */
:root{
  --blue:#003d7a;
  --blue-2:#1a6fb0;
  --blue-light:#e8f1fb;
  --amber:#f26522;
  --ink:#1f2d3d;
  --ink-soft:#5a6b7b;
  --bg:#ffffff;
  --bg-soft:#f5f8fb;
  --line:#e3eaf2;
  --radius:14px;
  --shadow:0 8px 30px rgba(0,61,122,.10);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:72px 0}
.section.soft{background:var(--bg-soft)}
.section-title{font-size:30px;font-weight:800;letter-spacing:.5px;margin-bottom:8px;color:var(--blue)}
.section-title .en{display:block;font-size:13px;font-weight:600;letter-spacing:3px;color:var(--blue-2);text-transform:uppercase;margin-bottom:6px}
.section-sub{color:var(--ink-soft);max-width:760px;margin-bottom:40px}
.eyebrow{display:inline-block;background:var(--blue-light);color:var(--blue);font-weight:700;font-size:13px;letter-spacing:1px;padding:5px 14px;border-radius:30px;margin-bottom:14px}

/* ===== 顶部导航 ===== */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center}
.brand img{height:46px;width:auto;display:block}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-weight:600;font-size:15px;color:var(--ink);position:relative;padding:6px 0}
.nav-links a:hover{color:var(--blue)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--amber);transition:width .25s}
.nav-links a:hover::after{width:100%}
.btn{display:inline-block;background:var(--amber);color:#fff;font-weight:700;padding:11px 22px;border-radius:30px;font-size:15px;transition:.2s;box-shadow:0 4px 14px rgba(242,101,34,.35)}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(242,101,34,.45)}
.btn.ghost{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px}
.menu-toggle span{width:24px;height:3px;background:var(--blue);border-radius:3px}

/* ===== 英雄区 ===== */
.hero{position:relative;background:linear-gradient(135deg,#003d7a 0%,#0a4d8c 55%,#1a6fb0 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:480px;height:480px;background:radial-gradient(circle,rgba(242,101,34,.25),transparent 60%);border-radius:50%}
.hero .wrap{position:relative;z-index:2;padding:96px 22px 110px}
.hero h1{font-size:46px;font-weight:900;line-height:1.2;margin-bottom:18px}
.hero h1 .hl{color:var(--amber)}
.hero p{font-size:18px;max-width:640px;color:rgba(255,255,255,.9);margin-bottom:30px}
.hero .btns{display:flex;gap:16px;flex-wrap:wrap}
.hero .btn.ghost{color:#fff;border-color:rgba(255,255,255,.6)}
.hero-stats{display:flex;gap:42px;margin-top:52px;flex-wrap:wrap}
.hero-stats .s b{font-size:34px;font-weight:900;color:var(--amber);display:block}
.hero-stats .s span{font-size:14px;color:rgba(255,255,255,.85)}

/* ===== 卡片网格 ===== */
.grid{display:grid;gap:24px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s;box-shadow:0 2px 10px rgba(10,77,140,.04)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f1}
.card .ic{width:52px;height:52px;border-radius:12px;background:var(--blue-light);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .ic svg{width:28px;height:28px;stroke:var(--blue)}
.card h3{font-size:20px;margin-bottom:10px;color:var(--blue)}
.card p{color:var(--ink-soft);font-size:15px}
.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--blue-2);background:var(--blue-light);padding:3px 10px;border-radius:20px;margin-bottom:12px}

/* ===== 六大服务编号 ===== */
.num{font-size:42px;font-weight:900;color:#dbe7f4;line-height:1}

/* ===== 资讯列表 ===== */
.news-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.news-item .date{flex:0 0 86px;text-align:center;background:var(--blue-light);border-radius:10px;padding:12px 8px;color:var(--blue)}
.news-item .date b{display:block;font-size:22px;font-weight:900}
.news-item .date span{font-size:12px}
.news-item .body h4{font-size:17px;margin-bottom:4px}
.news-item .body p{color:var(--ink-soft);font-size:14px}
.news-item:hover h4{color:var(--blue)}

/* ===== 语言切换 ===== */
.lang-switch{display:flex;gap:6px;align-items:center;margin-left:6px}
.lang-switch a{font-size:13px;font-weight:700;padding:5px 11px;border-radius:20px;border:1.5px solid var(--line);color:var(--ink-soft);transition:.2s}
.lang-switch a.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.lang-switch a:hover{color:var(--blue);border-color:var(--blue)}
.lang-switch a.active:hover{color:#fff}

/* ===== 团队 ===== */
.team{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.member{text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 16px}
.member .photo{width:104px;height:104px;border-radius:50%;margin:0 auto 14px;object-fit:cover;border:3px solid var(--blue-light);box-shadow:0 4px 14px rgba(10,77,140,.12)}
.avatar{width:84px;height:84px;border-radius:50%;margin:0 auto 14px;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800}
.member h4{font-size:17px;color:var(--ink)}
.member span{font-size:13px;color:var(--blue-2);font-weight:600}

/* ===== 领导简介 ===== */
.leader{display:grid;grid-template-columns:300px 1fr;gap:40px;align-items:start}
.leader .portrait{width:100%;border-radius:var(--radius);box-shadow:var(--shadow)}
.leader h2{font-size:32px;color:var(--blue);margin-bottom:4px}
.leader .en-name{color:var(--ink-soft);font-size:15px;margin-bottom:6px}
.leader .role{color:var(--amber);font-weight:700;margin-bottom:18px;font-size:16px}
.leader .titles{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.leader .titles span{font-size:13px;background:var(--blue-light);color:var(--blue);padding:5px 12px;border-radius:20px}
.timeline{list-style:none;margin-top:6px;border-left:3px solid var(--blue-light);padding-left:22px}
.timeline li{position:relative;margin-bottom:16px;color:var(--ink-soft);font-size:15px}
.timeline li::before{content:"";position:absolute;left:-30px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--amber);border:3px solid #fff;box-shadow:0 0 0 2px var(--blue-light)}
.timeline li b{color:var(--blue)}
.awards{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.awards span{font-size:13px;background:#fff;border:1px solid var(--line);padding:6px 14px;border-radius:8px;color:var(--ink-soft)}

/* ===== 会长·理事会 / 合作品牌 ===== */
.council-note{margin-top:26px;font-size:13px;color:var(--ink-soft);background:var(--bg-soft);border:1px dashed var(--line);border-radius:10px;padding:14px 18px;line-height:1.7}
.leader-card.pending{border-style:dashed;background:repeating-linear-gradient(45deg,#fff,#fff 12px,#fafcff 12px,#fafcff 24px)}
.leader-card.pending h3{color:var(--ink-soft)}
.partners{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.partner{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s}
.partner:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f1}
.partner .p-logo{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;margin-bottom:16px}
.partner h4{font-size:18px;color:var(--blue);margin-bottom:10px}
.partner p{font-size:14px;color:var(--ink-soft)}

/* ===== 影像画廊 ===== */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery-grid figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(10,77,140,.04)}
.gallery-grid img{width:100%;height:240px;object-fit:cover}
.gallery-grid figcaption{padding:12px 14px;font-size:14px;color:var(--ink-soft)}
.photo-ph{display:flex;align-items:center;justify-content:center;height:240px;background:var(--bg-soft);color:var(--ink-soft);font-size:13px;text-align:center;padding:20px;border:1px dashed var(--line)}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:36px}
.info-row{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.info-row .ic{width:42px;height:42px;flex:0 0 auto;border-radius:10px;background:var(--blue-light);display:flex;align-items:center;justify-content:center}
.info-row .ic svg{width:22px;height:22px;stroke:var(--blue)}
.info-row b{display:block;font-size:15px}
.info-row span{color:var(--ink-soft);font-size:14px}
.contact-card{background:var(--blue);color:#fff;border-radius:var(--radius);padding:36px}
.contact-card h3{font-size:22px;margin-bottom:14px}
.contact-card p{color:rgba(255,255,255,.85);font-size:14px;margin-bottom:8px}

/* ===== 页脚 ===== */
.footer{background:#0c2238;color:rgba(255,255,255,.75);padding:48px 0 26px}
.footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.footer h5{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{display:block;color:rgba(255,255,255,.7);font-size:14px;padding:4px 0}
.footer a:hover{color:var(--amber)}
.footer .brand{color:#fff;margin-bottom:12px}
.footer .copy{border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:18px;font-size:13px;color:rgba(255,255,255,.55);text-align:center}

/* ===== 响应式 ===== */
@media(max-width:920px){
  .grid.c3,.grid.c2{grid-template-columns:1fr 1fr}
  .team{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:1fr 1fr}
  .partners{grid-template-columns:1fr 1fr}
  .leader{grid-template-columns:1fr;gap:24px}
  .leader .portrait{max-width:280px}
  .contact-grid{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr 1fr}
  .hero h1{font-size:34px}
}
@media(max-width:640px){
  .nav-links{position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:0 22px;border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .3s}
  .nav-links.open{max-height:420px}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);width:100%}
  .menu-toggle{display:flex}
  .grid.c3,.grid.c2,.team,.footer .cols,.partners{grid-template-columns:1fr}
  .hero .wrap{padding:64px 22px 72px}
  .section{padding:52px 0}
  .section-title{font-size:24px}
  .hero-stats{gap:26px}
}