/* =========================================================
   西江港务 · 方案B「活力青港」
   纯静态、零外部依赖（无 CDN / 无外链字体 / 无外部图片）
   ========================================================= */
:root{
  --teal:#0e7c6b;--teal-d:#0a5c50;--teal-l:#3aa691;
  --mint:#e8f5f1;--sand:#f8f6f0;--cream:#fffdf8;
  --ink:#15302b;--ink-2:#2f4a44;--muted:#6b827c;
  --line:#dfeae6;--accent:#ef9f2e;--accent-d:#dd8b16;
  --w:1160px;--r-lg:24px;--r:14px;
  --sh:0 18px 44px rgba(15,60,54,.08);
  --sh-sm:0 6px 18px rgba(15,60,54,.07);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--cream);color:var(--ink);font-size:16px;line-height:1.8;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none;transition:color .2s}
a:hover{color:var(--teal-l)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.4;letter-spacing:-.2px}
p{margin:0}
.wrap{width:100%;max-width:var(--w);margin:0 auto;padding:0 26px}

/* ---------- 顶部（白色胶囊导航） ---------- */
.hd{position:sticky;top:0;z-index:60;padding:14px 0;background:rgba(255,253,248,.86);backdrop-filter:saturate(150%) blur(10px)}
.hd-in{
  display:flex;align-items:center;justify-content:space-between;gap:22px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 12px 9px 20px;box-shadow:var(--sh-sm);
}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink)}
.logo-mark{width:34px;height:34px;flex:0 0 34px}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-txt b{font-size:17.5px;letter-spacing:.6px;color:var(--teal-d)}
.logo-txt i{font-style:normal;font-size:9.5px;letter-spacing:1.5px;color:var(--muted);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:9px 15px;font-size:14.5px;color:var(--ink-2);border-radius:999px;font-weight:500}
.nav a:hover{background:var(--mint);color:var(--teal-d)}
.nav a.on{background:var(--mint);color:var(--teal-d);font-weight:700}
.nav .nav-cta{margin-left:6px;background:var(--teal);color:#fff;font-weight:600;padding:9px 20px}
.nav .nav-cta:hover{background:var(--teal-d);color:#fff}
.nav-btn{display:none;width:40px;height:40px;border:0;background:var(--mint);border-radius:50%;padding:11px 10px;cursor:pointer}
.nav-btn span{display:block;height:2px;background:var(--teal-d);border-radius:2px;margin:4px 0;transition:.25s}
.nav-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 主视觉（左右分栏） ---------- */
.hero{position:relative;padding:58px 0 30px;overflow:hidden}
.hero::before{content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(58,166,145,.18),transparent 68%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:8px;background:var(--mint);color:var(--teal-d);
  font-size:13px;font-weight:600;padding:7px 16px;border-radius:999px;margin-bottom:22px}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--teal-l);box-shadow:0 0 0 4px rgba(58,166,145,.18)}
.hero h1{font-size:52px;line-height:1.2;letter-spacing:-1.2px;margin-bottom:20px;color:var(--ink)}
.hero h1 em{font-style:normal;position:relative;color:var(--teal-d);white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;background:rgba(239,159,46,.32);border-radius:6px;z-index:-1}
.hero-sub{font-size:16.5px;color:var(--muted);max-width:520px;margin-bottom:30px;line-height:1.9}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;transition:.22s;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--teal);color:#fff;box-shadow:0 10px 22px rgba(14,124,107,.24)}
.btn-primary:hover{background:var(--teal-d);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:var(--teal-l);color:var(--teal-d)}
.btn-line{background:#fff;border-color:var(--teal);color:var(--teal-d)}
.btn-line:hover{background:var(--teal);color:#fff}

/* 主视觉右侧图形卡 */
.hero-art{position:relative}
.art-card{background:linear-gradient(160deg,#0e7c6b,#0a5c50 60%,#0c6a5c);border-radius:var(--r-lg);
  padding:26px 24px 0;box-shadow:var(--sh);overflow:hidden;position:relative}
.art-card::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:rgba(255,255,255,.07)}
.art-top{display:flex;justify-content:space-between;align-items:flex-start;color:#d6ece7;font-size:12.5px;letter-spacing:.5px}
.art-top b{display:block;color:#fff;font-size:16px;letter-spacing:0;margin-top:2px}
.art-svg{margin-top:14px;color:#063f37;opacity:.85}
.float-card{position:absolute;left:-18px;bottom:26px;background:#fff;border-radius:16px;padding:14px 18px;
  box-shadow:var(--sh);display:flex;align-items:center;gap:12px;max-width:230px}
.float-card .ic{width:38px;height:38px;border-radius:12px;background:var(--mint);color:var(--teal);display:flex;align-items:center;justify-content:center;flex:0 0 38px}
.float-card b{display:block;font-size:19px;line-height:1.2;color:var(--ink)}
.float-card span{font-size:12.5px;color:var(--muted)}

/* ---------- 能力小卡 ---------- */
.cap{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.cap-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;transition:.22s}
.cap-item:hover{transform:translateY(-3px);box-shadow:var(--sh-sm);border-color:#cbe4dc}
.cap-item .ic{width:36px;height:36px;border-radius:11px;background:var(--mint);color:var(--teal);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.cap-item .ic svg{width:19px;height:19px}
.cap-item b{display:block;font-size:24px;letter-spacing:-.5px;color:var(--teal-d)}
.cap-item b small{font-size:12.5px;font-weight:600;color:var(--muted);margin-left:3px;letter-spacing:0}
.cap-item span{display:block;font-size:13.5px;color:var(--muted);margin-top:2px}

/* ---------- 区块 ---------- */
.sec{padding:72px 0}
.sec.warm{background:var(--sand)}
.sec.mint{background:var(--mint)}
.sec-hd{max-width:680px;margin-bottom:40px}
.sec-hd.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{display:inline-block;margin-bottom:12px;font-size:12.5px;font-weight:700;letter-spacing:2px;color:var(--teal-l);text-transform:uppercase}
.sec-hd h2{font-size:34px;letter-spacing:-.6px;color:var(--ink);margin-bottom:14px}
.sec-hd p{color:var(--muted);font-size:15.5px}

/* ---------- 服务大卡 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc{display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 28px;transition:.25s}
.svc:hover{box-shadow:var(--sh);transform:translateY(-3px);border-color:#cbe4dc}
.svc-ic{flex:0 0 54px;width:54px;height:54px;border-radius:18px;background:var(--mint);color:var(--teal);display:flex;align-items:center;justify-content:center}
.svc-ic svg{width:26px;height:26px}
.svc h3{font-size:19px;margin-bottom:8px;color:var(--ink)}
.svc p{font-size:14.6px;color:var(--muted);line-height:1.85}
.svc .more{display:inline-block;margin-top:12px;font-size:13.5px;font-weight:700;color:var(--teal-d)}
.svc .more::after{content:" →"}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{position:relative;background:#fff;border-radius:var(--r-lg);padding:28px 24px 26px;border:1px solid var(--line)}
.step::before{counter-increment:s;content:"0" counter(s);display:block;font-size:13px;font-weight:800;letter-spacing:1px;color:var(--accent);margin-bottom:12px}
.step h4{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 引用/价值区 ---------- */
.quote{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.quote-card{background:#fff;border-radius:var(--r-lg);padding:38px 36px;box-shadow:var(--sh-sm);border:1px solid var(--line);position:relative}
.quote-card::before{content:"”";position:absolute;top:6px;left:24px;font-size:72px;color:var(--mint);font-family:Georgia,serif;line-height:1}
.quote-card p{position:relative;font-size:17px;line-height:2;color:var(--ink-2)}
.quote-card .by{margin-top:18px;font-size:13.5px;color:var(--muted)}
.checks li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.checks li:last-child{border-bottom:0}
.checks .ck{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;margin-top:3px}
.checks .ck svg{width:14px;height:14px}
.checks h4{font-size:16.5px;margin-bottom:4px}
.checks p{font-size:14.2px;color:var(--muted);line-height:1.8}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 26px;display:flex;flex-direction:column;transition:.25s}
.post:hover{box-shadow:var(--sh);transform:translateY(-3px)}
.post .tag{align-self:flex-start;font-size:12px;font-weight:700;color:var(--teal-d);background:var(--mint);padding:4px 12px;border-radius:999px;margin-bottom:16px}
.post h3{font-size:17px;line-height:1.65;margin-bottom:10px}
.post p{font-size:14px;color:var(--muted);flex:1}
.post time{display:block;margin-top:16px;font-size:12.5px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta{background:var(--teal-d);color:#fff;border-radius:var(--r-lg);padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  background-image:radial-gradient(circle at 88% 12%,rgba(255,255,255,.14),transparent 55%)}
.cta h2{font-size:27px;margin-bottom:8px;letter-spacing:-.4px}
.cta p{color:#b9dcd5;font-size:15px}
.cta .btn-primary{background:var(--accent);box-shadow:none;color:#3a2705}
.cta .btn-primary:hover{background:var(--accent-d);color:#3a2705}

/* ---------- 页脚 ---------- */
.ft{background:var(--sand);border-top:1px solid var(--line);padding:56px 0 26px;margin-top:8px}
.ft-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:38px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.ft-logo{font-size:18px;font-weight:800;color:var(--teal-d);letter-spacing:.6px;margin-bottom:12px}
.ft-brand p{font-size:13.6px;color:var(--muted);line-height:1.95}
.ft-col h4{font-size:14.5px;color:var(--ink);margin-bottom:14px}
.ft-col a,.ft-col p{display:block;font-size:13.6px;color:var(--muted);line-height:2.05}
.ft-col a:hover{color:var(--teal-d)}
.ft-bot{padding-top:22px;font-size:12.8px;color:var(--muted);display:flex;flex-direction:column;gap:8px}
.ft-legal{display:flex;flex-wrap:wrap;gap:6px 12px}
.ft-legal span{opacity:.5}
.beian{display:flex;flex-wrap:wrap;gap:8px 18px}
.beian a{display:inline-flex;align-items:center;gap:6px;color:var(--muted)}
.beian a:hover{color:var(--teal-d)}
.beian svg{width:14px;height:14px}

/* ---------- 内页 ---------- */
.page-hero{background:var(--mint);padding:56px 0 52px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-100px;bottom:-140px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,124,107,.14),transparent 70%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:38px;letter-spacing:-.8px;margin-bottom:12px;color:var(--teal-d)}
.page-hero p{color:var(--ink-2);font-size:15.5px;max-width:660px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--teal-d)}
.crumb span{margin:0 7px;opacity:.6}

/* ---------- 正文 ---------- */
.prose{max-width:880px}
.prose h2{font-size:26px;color:var(--teal-d);margin:44px 0 16px;letter-spacing:-.4px}
.prose h2:first-child{margin-top:0}
.prose h2::after{content:"";display:block;width:44px;height:3px;background:var(--accent);border-radius:3px;margin-top:10px}
.prose h3{font-size:17.5px;color:var(--ink);margin:26px 0 10px}
.prose p{color:var(--ink-2);font-size:15.4px;margin-bottom:14px;line-height:1.95}
.prose ul.dot li,.prose ol.num li{color:var(--ink-2);font-size:15.4px;line-height:1.95}
.prose ul.dot li{position:relative;padding-left:22px;margin-bottom:2px}
.prose ul.dot li::before{content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:2px;background:var(--teal-l)}
.prose ol.num{counter-reset:n}
.prose ol.num li{position:relative;padding-left:30px;margin-bottom:4px}
.prose ol.num li::before{counter-increment:n;content:counter(n);position:absolute;left:0;top:4px;width:21px;height:21px;border-radius:50%;
  background:var(--mint);color:var(--teal-d);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.note,.prose .note{background:#fff6e5;border-radius:12px;padding:15px 18px;font-size:13.8px;color:#7a5a17;margin-bottom:18px;line-height:1.85}

/* ---------- 表格 ---------- */
.tb{width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;margin-bottom:22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.tb caption{text-align:left;font-size:12.8px;color:var(--muted);padding-bottom:8px;caption-side:top}
.tb th,.tb td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tb th{background:var(--mint);color:var(--teal-d);font-weight:700;white-space:nowrap}
.tb tbody tr:last-child td{border-bottom:0}

/* ---------- 时间轴 ---------- */
.tl{position:relative;padding-left:26px}
.tl::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--teal-l),var(--mint))}
.tl li{position:relative;padding-bottom:28px}
.tl li:last-child{padding-bottom:0}
.tl li::before{content:"";position:absolute;left:-26px;top:9px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--teal-l)}
.tl .yr{font-size:13px;font-weight:800;color:var(--accent-d);letter-spacing:1px}
.tl h4{font-size:16.5px;margin:2px 0 6px}
.tl p{font-size:14.3px;color:var(--muted)}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.info-list li{display:flex;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}
.info-list li:last-child{border-bottom:0}
.info-list .ico{flex:0 0 42px;width:42px;height:42px;border-radius:14px;background:var(--mint);color:var(--teal);display:flex;align-items:center;justify-content:center}
.info-list .ico svg{width:19px;height:19px}
.info-list h4{font-size:14.8px;margin-bottom:3px}
.info-list p,.info-list a{font-size:14.3px;color:var(--muted);line-height:1.85}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-sm)}
.form h3{font-size:20px;margin-bottom:6px}
.form .sub{font-size:13.4px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13.4px;color:var(--ink-2);margin-bottom:6px;font-weight:600}
.field input,.field select,.field textarea{width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:12px;
  font-size:14.5px;color:var(--ink);font-family:inherit;background:#fbfdfc;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--teal-l);background:#fff;box-shadow:0 0 0 4px rgba(58,166,145,.12)}
.field textarea{min-height:110px;resize:vertical}
.field .err{display:none;margin-top:5px;font-size:12.4px;color:#c0392b}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid textarea{border-color:#e09086}
.agree{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--muted);margin:6px 0 18px;line-height:1.7}
.agree input{margin-top:4px;width:15px;height:15px;flex:0 0 15px;accent-color:var(--teal)}
.form .btn-primary{width:100%;justify-content:center}
.form-tip{margin-top:14px;font-size:12.5px;color:#8ba39d;line-height:1.7}
.map-box{margin-top:38px;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--mint)}
.map-ph{height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#5f8a80;
  background:linear-gradient(0deg,rgba(14,124,107,.06) 1px,transparent 1px) 0 0/100% 32px,
             linear-gradient(90deg,rgba(14,124,107,.06) 1px,transparent 1px) 0 0/32px 100%}
.map-ph svg{width:30px;height:30px;color:var(--teal)}
.map-ph span{font-size:13px;max-width:520px;text-align:center;padding:0 20px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-in{grid-template-columns:1fr;gap:38px}
  .hero h1{font-size:42px}
  .hero-art{max-width:560px}
  .cap{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .quote{grid-template-columns:1fr;gap:32px}
  .svc-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .ft-top{grid-template-columns:1fr 1fr;gap:30px}
  .cta{padding:36px 32px}
}
@media (max-width:820px){
  .nav-btn{display:block}
  .hd-in{padding:8px 10px 8px 16px;position:relative}
  .nav{position:absolute;left:0;right:0;top:calc(100% + 8px);flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh);padding:10px;
    max-height:0;overflow:hidden;opacity:0;pointer-events:none;transition:.25s}
  .nav.open{max-height:420px;opacity:1;pointer-events:auto;padding:10px}
  .nav a{padding:12px 16px;border-radius:12px}
  .nav .nav-cta{margin:6px 0 0;text-align:center;justify-content:center}
  .hero{padding:40px 0 20px}
  .hero h1{font-size:33px;letter-spacing:-.8px}
  .hero-sub{font-size:15.4px}
  .sec{padding:56px 0}
  .sec-hd h2{font-size:26px}
  .page-hero h1{font-size:28px}
  .float-card{left:8px;bottom:14px;padding:11px 14px}
  .cta{flex-direction:column;align-items:flex-start}
  .cta h2{font-size:23px}
}
@media (max-width:560px){
  .cap,.steps,.news-grid{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr;gap:24px}
  .hero h1{font-size:28px}
  .svc{padding:24px 20px;flex-direction:column;gap:14px}
  .form{padding:24px 20px}
  .wrap{padding:0 18px}
  .quote-card{padding:28px 24px}
}