:root{--c-primary:#0A6C75;--c-primary-dark:#06505A;--c-primary-deep:#07343B;--c-accent:#E8A33D;--c-ink:#16242A;--c-muted:#5A6B72;--c-bg:#F4F9FA;--c-card:#FFFFFF;--c-line:#E3EDF0;--serif:Georgia,"Times New Roman","Songti SC","SimSun",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--c-ink);background:var(--c-bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-dark)}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.topbar{background:var(--c-primary-deep);color:#cfe4e8;font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center}
.topbar a{color:#cfe4e8;margin-left:18px}
.topbar a:hover{color:#fff}
.nav{background:var(--c-card);border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:50}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:42px;height:42px;border-radius:10px}
.brand .name{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--c-primary-deep)}
.brand .sub{font-size:11px;color:var(--c-muted);letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{color:var(--c-ink);font-size:15px;font-weight:500;position:relative}
.nav-links a:hover{color:var(--c-primary)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;background:var(--c-primary);color:#fff;padding:10px 22px;border-radius:8px;font-weight:600;font-size:15px}
.nav-cta:hover{background:var(--c-primary-dark);color:#fff}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--c-primary);color:#fff;padding:13px 30px;border-radius:9px;font-weight:600;font-size:16px;border:none;cursor:pointer}
.btn:hover{background:var(--c-primary-dark);color:#fff}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--c-primary);padding:12px 28px;border-radius:9px;font-weight:600;font-size:16px;border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary);color:#fff}
.btn-accent{display:inline-flex;align-items:center;gap:8px;background:var(--c-accent);color:#3a2a0a;padding:13px 30px;border-radius:9px;font-weight:600;font-size:16px;border:none;cursor:pointer}
.btn-accent:hover{background:#d8922e;color:#3a2a0a}
.hero{background:linear-gradient(160deg,var(--c-primary-deep) 0%,var(--c-primary) 100%);color:#fff;padding:80px 0 90px;position:relative;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
.hero h1{font-family:var(--serif);font-size:46px;line-height:1.25;font-weight:700;margin-bottom:20px}
.hero h1 .hl{color:var(--c-accent)}
.hero .lead{font-size:17px;color:#d7eaee;max-width:520px;margin-bottom:30px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:40px}
.hero-stats .stat b{display:block;font-family:var(--serif);font-size:30px;color:#fff}
.hero-stats .stat span{font-size:13px;color:#a9d2d8}
.mock{background:#fff;border-radius:16px;box-shadow:0 30px 70px rgba(0,0,0,.3);overflow:hidden;color:var(--c-ink)}
.mock .mock-head{display:flex;align-items:center;gap:8px;padding:14px 18px;background:#eef5f6;border-bottom:1px solid var(--c-line)}
.mock .dot{width:11px;height:11px;border-radius:50%}
.mock .mock-body{padding:22px}
.mock .msg{max-width:80%;padding:10px 14px;border-radius:12px;font-size:14px;margin-bottom:12px}
.mock .msg.in{background:#eef5f6;border-top-left-radius:3px}
.mock .msg.out{background:var(--c-primary);color:#fff;margin-left:auto;border-top-right-radius:3px}
.mock .mock-input{display:flex;gap:10px;padding:14px;border-top:1px solid var(--c-line)}
.mock .mock-input span{flex:1;background:#f4f9fa;border-radius:20px;padding:8px 16px;color:#8ba0a8;font-size:13px}
.section{padding:80px 0}
.section.alt{background:var(--c-card)}
.section-head{text-align:center;max-width:680px;margin:0 auto 50px}
.section-head .kicker{display:inline-block;color:var(--c-accent);font-weight:600;letter-spacing:2px;font-size:13px;text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-family:var(--serif);font-size:34px;color:var(--c-primary-deep);margin-bottom:14px}
.section-head p{color:var(--c-muted);font-size:16px}
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;padding:32px 26px;transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(10,108,117,.1);border-color:#cfe0e5}
.card .icon{width:52px;height:52px;border-radius:12px;background:#e7f4f5;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .icon svg{width:26px;height:26px;stroke:var(--c-primary)}
.card h3{font-size:19px;color:var(--c-primary-deep);margin-bottom:10px}
.card p{color:var(--c-muted);font-size:14.5px}
.notice{background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;padding:0;overflow:hidden}
.notice .notice-item{display:flex;align-items:center;gap:18px;padding:18px 26px;border-bottom:1px solid var(--c-line)}
.notice .notice-item:last-child{border-bottom:none}
.notice .tag{flex-shrink:0;background:#e7f4f5;color:var(--c-primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px}
.notice .tag.hot{background:#fdf0dd;color:#c0781a}
.notice .notice-item a{flex:1;color:var(--c-ink);font-size:15px}
.notice .notice-item a:hover{color:var(--c-primary)}
.notice .date{color:var(--c-muted);font-size:13px;flex-shrink:0}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.trust .t-item{text-align:center}
.trust .t-item .t-num{font-family:var(--serif);font-size:38px;font-weight:700;color:var(--c-primary)}
.trust .t-item .t-label{color:var(--c-muted);font-size:14px;margin-top:6px}
.news-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:34px}
.news-tabs button{background:var(--c-card);border:1px solid var(--c-line);padding:10px 24px;border-radius:24px;font-size:14px;font-weight:600;color:var(--c-muted);cursor:pointer}
.news-tabs button.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;overflow:hidden;transition:.25s}
.news-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(10,108,117,.1)}
.news-card .thumb{height:150px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--serif);font-size:18px}
.news-card .news-body{padding:20px}
.news-card .news-cat{color:var(--c-accent);font-size:12px;font-weight:600;letter-spacing:1px}
.news-card h3{font-size:16.5px;margin:8px 0;line-height:1.5}
.news-card h3 a{color:var(--c-primary-deep)}
.news-card h3 a:hover{color:var(--c-primary)}
.news-card .news-date{color:var(--c-muted);font-size:13px}
.compare{overflow-x:auto}
.compare table{width:100%;border-collapse:collapse;background:var(--c-card);border-radius:14px;overflow:hidden;min-width:720px}
.compare th,.compare td{padding:16px 20px;text-align:center;border-bottom:1px solid var(--c-line)}
.compare th{background:var(--c-primary-deep);color:#fff;font-size:15px}
.compare th:first-child,.compare td:first-child{text-align:left;font-weight:600;color:var(--c-primary-deep)}
.compare .yes{color:var(--c-primary);font-weight:700}
.compare .no{color:#c3ccd0}
.compare .highlight-col{background:#eef8f9}
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.dl-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;padding:30px 18px;text-align:center;transition:.25s}
.dl-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(10,108,117,.1)}
.dl-card .icon{width:56px;height:56px;border-radius:14px;background:#e7f4f5;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.dl-card .icon svg{width:28px;height:28px;stroke:var(--c-primary)}
.dl-card h3{font-size:16px;color:var(--c-primary-deep);margin-bottom:6px}
.dl-card p{font-size:12.5px;color:var(--c-muted);margin-bottom:16px}
.dl-card .btn{font-size:14px;padding:9px 20px}
.faq{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--c-line);border-radius:12px;margin-bottom:14px;background:var(--c-card);overflow:hidden}
.faq-item summary{cursor:pointer;padding:20px 26px;font-weight:600;color:var(--c-primary-deep);list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--c-primary);font-weight:400}
.faq-item[open] summary::after{content:"\2212"}
.faq-item .faq-body{padding:0 26px 22px;color:var(--c-muted);font-size:14.5px}
.faq-item .faq-body ol{margin-left:20px}
.cta{background:linear-gradient(160deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);color:#fff;text-align:center;padding:90px 0}
.cta h2{font-family:var(--serif);font-size:36px;margin-bottom:16px}
.cta p{color:#d7eaee;max-width:560px;margin:0 auto 30px;font-size:16px}
.cta .btn-accent{font-size:17px;padding:15px 40px}
.footer{background:var(--c-primary-deep);color:#9fc1c7;padding:60px 0 30px}
.footer .container{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer a{display:block;color:#9fc1c7;font-size:14px;margin-bottom:10px}
.footer a:hover{color:#fff}
.footer .brand-info p{font-size:14px;margin-top:14px;max-width:280px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:24px;text-align:center;font-size:13px;color:#7fa7ae}
.breadcrumb{background:var(--c-card);border-bottom:1px solid var(--c-line);padding:14px 0}
.breadcrumb nav{font-size:13px;color:var(--c-muted)}
.breadcrumb nav ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.breadcrumb nav li{display:flex;align-items:center;gap:8px}
.breadcrumb nav li+li::before{content:"/";color:#c3ccd0}
.breadcrumb nav a{color:var(--c-muted)}
.breadcrumb nav a:hover{color:var(--c-primary)}
.breadcrumb nav [aria-current="page"]{color:var(--c-primary-deep);font-weight:700}
.page-head{background:linear-gradient(160deg,var(--c-primary-deep),var(--c-primary));color:#fff;padding:56px 0;text-align:center}
.page-head h1{font-family:var(--serif);font-size:38px;margin-bottom:12px}
.page-head p{color:#d7eaee;font-size:16px}
.article{max-width:820px;margin:0 auto;padding:50px 0}
.article h1{font-family:var(--serif);font-size:32px;color:var(--c-primary-deep);margin-bottom:16px;line-height:1.4}
.article .meta{display:flex;gap:20px;color:var(--c-muted);font-size:14px;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--c-line)}
.article .meta .cat{color:var(--c-accent);font-weight:600}
.article p{font-size:16px;color:#2a3a41;margin-bottom:18px;text-align:justify}
.article h2{font-family:var(--serif);font-size:24px;color:var(--c-primary-deep);margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--c-accent)}
.article img{border-radius:12px;margin:24px 0}
.article .quote{border-left:4px solid var(--c-primary);background:#eef8f9;padding:18px 22px;border-radius:0 10px 10px 0;color:var(--c-primary-dark);font-size:15px;margin:24px 0}
.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line)}
.article-nav a{color:var(--c-primary);font-size:14px}
.article-back{display:inline-block;margin-top:20px;font-size:14px;color:var(--c-muted)}
.article-back:hover{color:var(--c-primary)}
.sitemap-list{max-width:820px;margin:0 auto}
.sitemap-list h2{font-family:var(--serif);font-size:22px;color:var(--c-primary-deep);margin:30px 0 14px}
.sitemap-list ul{list-style:none}
.sitemap-list li{padding:10px 0;border-bottom:1px dashed var(--c-line)}
.sitemap-list li a{color:var(--c-primary);font-size:15px}
.not-found{text-align:center;padding:120px 0}
.not-found h1{font-family:var(--serif);font-size:80px;color:var(--c-primary);margin-bottom:16px}
.not-found p{color:var(--c-muted);margin-bottom:30px}
@media(max-width:900px){.hero .container{grid-template-columns:1fr}.hero h1{font-size:34px}.grid-6,.news-grid{grid-template-columns:1fr 1fr}.trust{grid-template-columns:1fr 1fr}.download-grid{grid-template-columns:1fr 1fr}.footer .container{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid-6,.news-grid,.download-grid,.trust{grid-template-columns:1fr}.nav-links{display:none}}