/* =====================================================
   千子科技 · 2026 改版
   明亮 / 大图 / 大字号
   ===================================================== */

:root{
  --paper:#FBFAF7;
  --ink:#101C1A;
  --ink-2:#22322E;
  --muted:#6C7A76;
  --line:#E3E5DF;
  --leaf:#0E6B5B;
  --leaf-d:#0A5245;
  --sand:#F2EFE9;
  --gutter:max(40px, calc((100vw - 1520px) / 2));
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
              "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
button{ font:inherit; background:none; border:0; cursor:pointer; color:inherit; }
svg{ display:block; }

::selection{ background:var(--leaf); color:#fff; }

/* ---------- 通用 ---------- */

.kicker{
  font-size:12px; font-weight:600; letter-spacing:.18em;
  text-transform:uppercase; color:rgba(255,255,255,.78);
  margin-bottom:26px;
}
.kicker--dark{ color:var(--leaf); }
.kicker--light{ color:rgba(255,255,255,.7); }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  height:52px; padding:0 32px; border-radius:2px;
  background:var(--leaf); color:#fff; white-space:nowrap;
  font-size:15px; font-weight:600; letter-spacing:.02em;
  transition:background .25s var(--ease), transform .25s var(--ease), color .25s;
}
.btn:hover{ background:var(--leaf-d); transform:translateY(-1px); }
.btn-sm{ height:42px; padding:0 22px; font-size:14px; border-radius:2px; }
.btn-lg{ height:58px; padding:0 38px; font-size:16px; }
.btn-light{ background:#fff; color:var(--ink); }
.btn-light:hover{ background:#fff; color:var(--leaf); }
.nav:not(.is-stuck) .btn{ background:#fff; color:var(--ink); }
.nav:not(.is-stuck) .btn:hover{ background:#fff; color:var(--leaf); }

/* ---------- 导航 ---------- */

.nav{
  position:fixed; top:0; left:0; right:0; z-index:80;
  transition:background .35s var(--ease), box-shadow .35s var(--ease);
}
.nav-inner{
  height:96px; padding:0 var(--gutter);
  display:flex; align-items:center; justify-content:space-between; gap:0;
  transition:height .35s var(--ease);
}
.nav.is-stuck{
  background:rgba(251,250,247,.94);
  backdrop-filter:saturate(160%) blur(16px);
  -webkit-backdrop-filter:saturate(160%) blur(16px);
  box-shadow:0 1px 0 var(--line);
}
.nav.is-stuck .nav-inner{ height:72px; }

.brand{ display:flex; align-items:center; gap:13px; flex:0 0 auto; }
.brand-mark{ height:42px; width:auto; display:block; }
.brand-txt{ display:flex; align-items:center; line-height:1; }
.brand-txt strong{ font-size:21px; font-weight:700; letter-spacing:.08em; color:#fff; transition:color .3s; }
.nav.is-stuck .brand-txt strong{ color:var(--ink); }

.nav-links{
  flex:1 1 auto; display:flex; justify-content:space-between; gap:0;
  padding:0 clamp(30px, 5vw, 96px);
}
.nav-links a{
  font-size:15px; font-weight:500; letter-spacing:.02em; color:rgba(255,255,255,.85);
  position:relative; padding:8px 0; white-space:nowrap; transition:color .2s;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:100%; height:1px;
  background:currentColor; transform:scaleX(0); transform-origin:right;
  transition:transform .35s var(--ease);
}
.nav-links a:hover::after{ transform:scaleX(1); transform-origin:left; }
.nav.is-stuck .nav-links a{ color:var(--ink-2); }
.nav.is-stuck .nav-links a:hover{ color:var(--leaf); }
.nav-links a.is-active{ color:#fff; }
.nav-links a.is-active::after{ transform:scaleX(1); transform-origin:left; }
.nav.is-stuck .nav-links a.is-active{ color:var(--leaf); }

.nav-act{ display:flex; align-items:center; gap:26px; flex:0 0 auto; white-space:nowrap; }
.nav-tel{ font-size:14.5px; font-weight:600; color:rgba(255,255,255,.86); letter-spacing:.02em; white-space:nowrap; transition:color .3s; }
.nav.is-stuck .nav-tel{ color:var(--ink-2); }
.nav-tel:hover{ color:#fff; }
.nav.is-stuck .nav-tel:hover{ color:var(--leaf); }

.nav-toggle{ display:none; width:36px; height:36px; position:relative; }
.nav-toggle i{ position:absolute; left:7px; width:22px; height:1.5px; background:#fff; transition:transform .3s var(--ease), opacity .2s; }
.nav-toggle i:nth-child(1){ top:14px; }
.nav-toggle i:nth-child(2){ top:21px; }
.nav.is-stuck .nav-toggle i{ background:var(--ink); }
.nav.is-open .nav-toggle i:nth-child(1){ transform:translateY(3.5px) rotate(45deg); }
.nav.is-open .nav-toggle i:nth-child(2){ transform:translateY(-3.5px) rotate(-45deg); }

/* ---------- HERO ---------- */

.hero{
  position:relative; height:100vh; min-height:680px;
  display:flex; flex-direction:column; justify-content:flex-end;
  overflow:hidden; color:#fff;
}
.hero-img{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:center 60%;
  transform:scale(1.02);
  animation:heroZoom 18s ease-out both;
}
@keyframes heroZoom{ from{ transform:scale(1.09); } to{ transform:scale(1.02); } }

.hero-veil{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(6,16,14,.6) 0%, rgba(6,16,14,.16) 26%, rgba(6,16,14,.28) 52%, rgba(6,16,14,.9) 100%),
    linear-gradient(90deg, rgba(6,16,14,.68) 0%, rgba(6,16,14,.3) 44%, rgba(6,16,14,.04) 74%);
}

.hero-body{
  position:relative; z-index:2;
  padding:0 var(--gutter);
  margin-top:auto;
  max-width:1600px;
}
.hero h1{
  font-size:clamp(42px, 5.9vw, 92px);
  line-height:1.06; font-weight:700; letter-spacing:-.045em;
  margin:0 0 28px -.06em;
  text-shadow:0 2px 40px rgba(0,0,0,.25);
}
.hero-lead{
  font-size:clamp(15px, 1.25vw, 19px); line-height:1.8;
  color:rgba(255,255,255,.88); max-width:760px; margin-bottom:44px;
  text-wrap:balance;
}
.hero-acts{ display:flex; align-items:center; gap:36px; flex-wrap:wrap; }
.hero-link{
  display:inline-flex; align-items:center; gap:9px;
  font-size:14px; font-weight:600; color:rgba(255,255,255,.9);
  border-bottom:1px solid rgba(255,255,255,.35); padding-bottom:4px;
  transition:border-color .25s, color .25s;
}
.hero-link span{ font-size:13px; transition:transform .3s var(--ease); }
.hero-link:hover{ color:#fff; border-color:#fff; }
.hero-link:hover span{ transform:translateY(4px); }

.hero-index{
  position:relative; z-index:2;
  display:grid; grid-template-columns:repeat(6,1fr);
  padding:0 var(--gutter);
  margin-top:150px;
  border-top:1px solid rgba(255,255,255,.22);
  background:rgba(6,16,14,.42);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.hero-index li{
  border-right:1px solid rgba(255,255,255,.14);
  padding-left:28px;
}
.hero-index li:first-child{ padding-left:0; }
.hero-index li:last-child{ border-right:0; }
.hero-index a{
  display:flex; align-items:baseline; gap:12px;
  padding:22px 14px 26px 0; font-size:13.5px; color:rgba(255,255,255,.86);
  transition:color .25s;
}
.hero-index a:hover{ color:#fff; }
.hero-index i{
  font-style:normal; font-size:10.5px; font-weight:600;
  color:rgba(255,255,255,.45); letter-spacing:.06em;
}

/* ---------- 图文左右 ---------- */

.split{
  display:grid; grid-template-columns:1fr 1fr;
  min-height:660px; align-items:stretch;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.split-media{ position:relative; overflow:hidden; }
.split-media img{
  width:100%; height:100%; object-fit:cover;
  transition:transform 1.2s var(--ease);
}
.split:hover .split-media img{ transform:scale(1.03); }
/* 03 自助游船：横向 3:2 取景，栏内垂直居中，区块高度收紧 */
#boat{ min-height:0; }
#boat .split-text{ padding-top:clamp(30px,3vw,44px); padding-bottom:clamp(30px,3vw,44px); }
#boat .split-media{ display:flex; align-items:center; background:var(--paper); }
#boat .split-media img{
  width:100%; height:auto; aspect-ratio:4/3;
  object-fit:cover; object-position:right center;
}
#kart .split-media img{ object-position:center 56%; }



.tag-no{
  position:absolute; top:0; left:0;
  padding:10px 16px; font-size:11px; font-weight:700; letter-spacing:.12em;
  color:#fff; background:rgba(10,22,20,.55);
  backdrop-filter:blur(6px);
}

.split-text{
  display:flex; flex-direction:column; justify-content:center;
  padding:96px clamp(40px,5vw,84px);
}
.split--right .split-text{ order:1; padding-left:var(--gutter); padding-right:clamp(40px,5vw,84px); }
.split--right .split-media{ order:2; }
.split--left .split-media{ order:1; }
.split--left .split-text{ order:2; padding-right:var(--gutter); padding-left:clamp(40px,5vw,84px); }

.split-text h2{
  font-size:clamp(32px, 3.6vw, 56px);
  line-height:1.12; font-weight:700; letter-spacing:-.035em;
  margin-bottom:20px;
}
.lede{
  font-size:clamp(16px, 1.4vw, 21px); line-height:1.75;
  color:var(--ink-2); max-width:440px; margin-bottom:40px;
  letter-spacing:-.01em;
}
.points{ border-top:1px solid var(--line); }
.points li{
  display:flex; gap:18px; align-items:baseline;
  padding:17px 0; border-bottom:1px solid var(--line);
  font-size:14.5px; line-height:1.7; color:var(--muted);
  max-width:520px;
}
.points b{
  flex:none; width:96px; color:var(--ink); font-weight:600; font-size:14.5px;
  letter-spacing:-.01em;
}
.fit{
  margin-top:32px; font-size:12px; letter-spacing:.06em;
  color:var(--muted);
}

/* ---------- 04 / 05 双图 ---------- */

.duo{ display:grid; grid-template-columns:1fr 1fr; background:var(--ink); }
.duo-item{
  position:relative; height:640px; overflow:hidden; display:block;
  border-right:1px solid rgba(255,255,255,.14);
}
.duo-item:last-child{ border-right:0; }
.duo-item img{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; transition:transform 1.2s var(--ease);
}
.duo-item:hover img{ transform:scale(1.04); }
.duo-veil{
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(8,20,18,.08) 22%, rgba(8,20,18,.5) 58%, rgba(8,20,18,.92) 100%);
}
.duo-body{
  position:absolute; left:0; right:0; bottom:0;
  padding:0 clamp(32px,3.4vw,56px) clamp(36px,3.4vw,56px); color:#fff;
}
.duo-no{
  display:block; font-size:11px; font-weight:700; letter-spacing:.14em;
  color:rgba(255,255,255,.72); margin-bottom:16px;
}
.duo-body h3{
  font-size:clamp(26px, 2.2vw, 34px); font-weight:700; letter-spacing:-.03em;
  margin-bottom:10px;
}
.duo-body > p{ font-size:15px; color:rgba(255,255,255,.82); margin-bottom:22px; }
.duo-body ul{ display:flex; flex-wrap:wrap; gap:8px 22px; }
.duo-body li{
  font-size:12.5px; color:rgba(255,255,255,.72);
  position:relative; padding-left:14px;
}
.duo-body li::before{
  content:""; position:absolute; left:0; top:9px;
  width:5px; height:1px; background:rgba(255,255,255,.6);
}

/* ---------- 案例 ---------- */

.cases{ position:relative; color:#fff; overflow:hidden; }
.cases-bg{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:center;
}
.cases-veil{
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(6,22,19,.86), rgba(6,22,19,.74));
}
.cases-inner{
  position:relative; z-index:2;
  padding:104px var(--gutter) 96px;
}
.case-list{
  display:grid; grid-template-columns:repeat(4,1fr); gap:0;
  border-top:1px solid rgba(255,255,255,.18);
}
.case-list li{
  padding:30px 26px 30px 0;
  border-right:1px solid rgba(255,255,255,.14);
}
.case-list li:last-child{ border-right:0; }
.case-list li + li{ padding-left:26px; }
.case-list h4{
  font-size:16px; font-weight:600; letter-spacing:-.01em; margin-bottom:10px;
  line-height:1.4;
}
.case-list p{ font-size:12.5px; line-height:1.75; color:rgba(255,255,255,.58); }

.num-row{
  display:flex; flex-wrap:wrap; gap:64px;
  margin-top:64px; padding-top:44px;
  border-top:1px solid rgba(255,255,255,.18);
}
.num-row li{ display:flex; flex-direction:column; gap:6px; }
.num-row strong{
  font-size:40px; font-weight:700; letter-spacing:-.04em; line-height:1;
  font-variant-numeric:tabular-nums;
}
.num-row i{ font-style:normal; font-size:20px; color:#7FD3BE; margin-left:2px; }
.num-row span{ font-size:11.5px; color:rgba(255,255,255,.48); letter-spacing:.05em; }

/* ---------- 联系 ---------- */

.contact{ background:var(--paper); padding:120px var(--gutter) 128px; }
.contact-inner{
  display:grid; grid-template-columns:1fr 1fr; gap:72px;
  align-items:start; max-width:1520px;
}
.contact h2{
  font-size:clamp(34px, 4vw, 64px); line-height:1.1; font-weight:700;
  letter-spacing:-.04em; margin-bottom:26px;
}
.contact-lead{
  font-size:16px; line-height:1.85; color:var(--muted);
  max-width:420px; margin-bottom:44px;
}
.contact-addr{ font-size:12.5px; color:#9AA5A1; letter-spacing:.03em; }

.contact-list{ border-top:1px solid var(--line); }
.contact-list li{
  display:flex; align-items:baseline; justify-content:space-between; gap:24px;
  padding:20px 0; border-bottom:1px solid var(--line);
}
.contact-list span{ font-size:12px; color:var(--muted); letter-spacing:.06em; flex:none; }
.contact-list a{
  font-size:20px; font-weight:600; letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
  transition:color .2s;
}
.contact-list a:hover{ color:var(--leaf); }

/* ---------- 页脚 ---------- */

.foot{ background:#071A17; color:rgba(255,255,255,.45); }
.foot-inner{
  padding:34px var(--gutter);
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
  font-size:11.5px; letter-spacing:.04em;
}
.foot-note{ color:rgba(255,255,255,.62); letter-spacing:.12em; }

/* =====================================================
   内页组件
   ===================================================== */

/* ---------- 子页头图 ---------- */

.page-hero{
  position:relative; height:58vh; min-height:440px; max-height:640px;
  display:flex; align-items:flex-end; overflow:hidden; color:#fff;
}
.page-hero img{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:center 55%;
  animation:heroZoom 20s ease-out both;
}
.page-hero .veil{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(6,16,14,.72) 0%, rgba(6,16,14,.62) 12%, rgba(6,16,14,.18) 40%, rgba(6,16,14,.82) 100%),
    linear-gradient(90deg, rgba(6,16,14,.55) 0%, rgba(6,16,14,.12) 62%);
}
.page-hero-inner{
  position:relative; z-index:2; width:100%;
  padding:0 var(--gutter) 68px;
}
.crumb{
  font-size:11.5px; letter-spacing:.1em; color:rgba(255,255,255,.7);
  margin-bottom:26px;
}
.crumb a{ transition:color .2s; }
.crumb a:hover{ color:#fff; }
.crumb i{ font-style:normal; margin:0 8px; opacity:.5; }
.page-hero h1{
  font-size:clamp(40px, 5.2vw, 76px); line-height:1.08; font-weight:700;
  letter-spacing:-.04em; margin-bottom:22px;
  text-shadow:0 2px 40px rgba(0,0,0,.22);
}
.page-hero .lead{
  font-size:clamp(15px, 1.2vw, 18px); line-height:1.8;
  color:rgba(255,255,255,.85); max-width:620px;
}
.page-hero--sm{ height:44vh; min-height:360px; max-height:480px; }
.page-hero--sm h1{ font-size:clamp(26px, 3.2vw, 44px); max-width:920px; line-height:1.28; }
.page-hero--sm .page-hero-inner{ padding-bottom:52px; }

/* ---------- 区块骨架 ---------- */

.sec{ padding:112px var(--gutter); }
.sec--end{ padding-bottom:84px; }
.sec--tight{ padding:80px var(--gutter); }
.sec--paper{ background:#fff; }
.sec--sand{ background:var(--sand); }

.sec-head{
  display:grid; grid-template-columns:1.1fr .9fr; gap:56px;
  align-items:end; margin-bottom:64px;
}
.sec-head h2{
  font-size:clamp(30px, 3.6vw, 54px); line-height:1.1; font-weight:700;
  letter-spacing:-.038em; text-wrap:balance;
}
.sec-head .desc{
  font-size:15px; line-height:1.85; color:var(--muted);
  max-width:560px; justify-self:end; text-align:right;
  padding-bottom:6px; text-wrap:pretty;
}
.sec-head .desc strong{ color:var(--ink); font-weight:600; }

/* ---------- 服务领域网格 ---------- */

.sys-grid{
  display:grid; grid-template-columns:repeat(3, 1fr);
  border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.sys-item{
  padding:46px 38px 44px;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  display:flex; flex-direction:column;
  transition:background .4s var(--ease);
}
.sys-item:hover{ background:#fff; }
.sys-no{
  font-size:11px; font-weight:700; letter-spacing:.16em; color:var(--leaf);
  margin-bottom:30px;
}
.sys-item h3{
  font-size:21px; font-weight:700; letter-spacing:-.02em; line-height:1.4;
  margin-bottom:14px;
}
.sys-item > p{
  font-size:13.5px; line-height:1.85; color:var(--muted);
  margin-bottom:26px; flex:1;
}
.sys-list{ border-top:1px solid var(--line); }
.sys-list li{
  font-size:12.5px; color:var(--ink-2); padding:9px 0;
  border-bottom:1px solid var(--line);
  display:flex; justify-content:space-between; gap:14px;
}
.sys-list li span{ color:var(--muted); flex:none; }

/* ---------- 平台架构（深色） ---------- */

.arch{ background:#071A17; color:#fff; padding:104px var(--gutter); }
.arch-head{ max-width:640px; margin-bottom:56px; }
.arch-head h2{
  font-size:clamp(30px,3.4vw,50px); line-height:1.12; font-weight:700;
  letter-spacing:-.035em; margin-bottom:20px;
}
.arch-head p{ font-size:14.5px; line-height:1.9; color:rgba(255,255,255,.62); }

.arch-row{
  display:grid; grid-template-columns:180px 1fr; gap:40px;
  padding:26px 0; border-top:1px solid rgba(255,255,255,.14);
  align-items:center;
}
.arch-row:last-child{ border-bottom:1px solid rgba(255,255,255,.14); }
.arch-tag{ font-size:12px; letter-spacing:.1em; color:rgba(255,255,255,.45); }
.arch-tag b{
  display:block; font-size:13px; color:#fff; font-weight:600;
  letter-spacing:.02em; margin-bottom:4px;
}
.arch-items{ display:flex; flex-wrap:wrap; gap:10px 14px; }
.arch-items span{
  font-size:13px; color:rgba(255,255,255,.8);
  padding:7px 14px; border:1px solid rgba(255,255,255,.16);
  border-radius:2px; transition:background .3s, border-color .3s;
}
.arch-items span:hover{ background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.32); }
.arch-items span.is-key{ border-color:rgba(127,211,190,.5); color:#9BE3D2; }

/* ---------- 案例网格 ---------- */

.case-grid{
  display:grid; grid-template-columns:repeat(2,1fr); gap:64px 48px;
}
.case-card{ display:block; }
.case-card.is-wide{ grid-column:1 / -1; }
.case-thumb{
  position:relative; overflow:hidden; aspect-ratio:16 / 9; background:var(--sand);
}
.case-card.is-wide .case-thumb{ aspect-ratio:21 / 9; }
.case-thumb img{
  width:100%; height:100%; object-fit:cover;
  transition:transform 1.1s var(--ease);
}
.case-card:hover .case-thumb img{ transform:scale(1.035); }
.case-meta{
  display:flex; flex-wrap:wrap; gap:8px 18px; align-items:center;
  margin:24px 0 12px; font-size:11.5px; letter-spacing:.06em; color:var(--muted);
}
.case-meta em{ font-style:normal; color:var(--leaf); }
.case-card h3{
  font-size:clamp(20px,1.7vw,26px); font-weight:700; letter-spacing:-.025em;
  line-height:1.35; margin-bottom:10px; transition:color .25s;
}
.case-card:hover h3{ color:var(--leaf); }
.case-card p{ font-size:13.5px; line-height:1.85; color:var(--muted); max-width:520px; }

/* ---------- 新闻列表 ---------- */

.news-list{ border-top:1px solid var(--line); }
.news-item{
  display:grid; grid-template-columns:150px 1fr 44px; gap:40px;
  padding:34px 0; border-bottom:1px solid var(--line);
  align-items:start; transition:padding .35s var(--ease);
}
.news-item:hover{ padding-left:10px; }
.news-date{ font-size:12px; color:var(--muted); letter-spacing:.04em; padding-top:5px; }
.news-date em{
  display:block; font-style:normal; font-size:11px; color:var(--leaf);
  letter-spacing:.1em; margin-top:6px;
}
.news-item h3{
  font-size:20px; font-weight:600; letter-spacing:-.02em; line-height:1.5;
  margin-bottom:9px; transition:color .2s;
}
.news-item:hover h3{ color:var(--leaf); }
.news-item p{ font-size:13.5px; line-height:1.8; color:var(--muted); max-width:680px; }
.news-arrow{
  width:34px; height:34px; border:1px solid var(--line); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:15px; line-height:1; color:var(--ink-2); justify-self:end;
  transition:background .3s, color .3s, border-color .3s, transform .3s var(--ease);
}
.news-item:hover .news-arrow{
  background:var(--leaf); color:#fff; border-color:var(--leaf);
  transform:translateX(4px);
}

/* 新闻筛选 */
.filter{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:44px; }
.filter button{
  font-size:12.5px; letter-spacing:.04em; color:var(--muted);
  padding:8px 18px; border:1px solid var(--line); border-radius:999px;
  transition:all .25s var(--ease);
}
.filter button:hover{ color:var(--ink); border-color:var(--ink); }
.filter button.is-on{ background:var(--ink); border-color:var(--ink); color:#fff; }

/* ---------- 资讯详情 ---------- */

.plain-h2{ font-size:clamp(26px,3vw,40px); letter-spacing:-.035em; font-weight:700; margin-bottom:36px; }
.about-photo{ width:100%; aspect-ratio:4/3; object-fit:cover; }

.article{ max-width:1080px; margin:0 auto; padding:88px clamp(20px, 4vw, 48px) 108px; }
.article-meta{
  display:flex; flex-wrap:wrap; gap:10px 22px; align-items:center;
  font-size:12px; color:var(--muted); letter-spacing:.05em; margin-bottom:26px;
}
.article-meta em{ font-style:normal; color:var(--leaf); }
.article h1{
  font-size:clamp(29px, 3.4vw, 44px); line-height:1.28; font-weight:700;
  letter-spacing:-.032em; margin-bottom:28px;
}
.article-body{ font-size:clamp(16px, 1.02vw, 18px); line-height:1.95; color:#2C3B37; }
.article-body p{ margin:26px 0; }
.article-body h2{
  font-size:21px; font-weight:700; color:var(--ink); letter-spacing:-.02em;
  margin:48px 0 16px; padding-top:26px; border-top:1px solid var(--line);
}
.article-body ul{ margin:22px 0; }
.article-body li{ position:relative; padding-left:20px; margin:10px 0; }
.article-body li::before{
  content:""; position:absolute; left:0; top:12px;
  width:6px; height:1px; background:var(--leaf);
}
.article-body strong{ color:var(--ink); font-weight:600; }
.article-quote{
  margin:40px 0; padding:30px 34px; background:#fff;
  border-left:2px solid var(--leaf);
  font-size:16px; line-height:1.9; color:var(--ink-2);
}
.article-foot{
  margin-top:64px; padding-top:28px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap;
  font-size:13px; color:var(--muted);
}
.article-foot a{ color:var(--leaf); font-weight:600; }

/* ---------- 关于我们 ---------- */

.about-intro{ display:grid; grid-template-columns:1fr .94fr; gap:80px; align-items:stretch; }
.about-intro h2{
  font-size:clamp(28px,3.2vw,46px); line-height:1.15; letter-spacing:-.035em;
  font-weight:700; margin-bottom:26px;
}
.about-intro p{ font-size:15px; line-height:1.95; color:var(--muted); margin-bottom:18px; }
.about-intro img{ width:100%; height:100%; object-fit:cover; object-position:center 32%; }

.stat-band{
  background:#071A17; color:#fff; padding:64px var(--gutter);
  display:grid; grid-template-columns:repeat(4,1fr); gap:40px;
}
.stat-band li{ display:flex; flex-direction:column; gap:10px; }
.stat-band strong{
  font-size:clamp(32px,3.4vw,48px); font-weight:700; line-height:1;
  letter-spacing:-.04em; font-variant-numeric:tabular-nums;
}
.stat-band i{ font-style:normal; font-size:.5em; color:#7FD3BE; margin-left:3px; }
.stat-band span{ font-size:12px; color:rgba(255,255,255,.5); letter-spacing:.06em; }

.timeline{ border-top:1px solid var(--line); }
.timeline li{
  display:grid; grid-template-columns:140px 1fr; gap:40px;
  padding:28px 0; border-bottom:1px solid var(--line);
}
.timeline b{
  font-size:13px; font-weight:600; color:var(--leaf); letter-spacing:.05em;
  font-variant-numeric:tabular-nums;
}
.timeline h4{ font-size:16px; font-weight:600; margin-bottom:8px; letter-spacing:-.01em; }
.timeline p{ font-size:13.5px; line-height:1.85; color:var(--muted); max-width:640px; }

.value-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:56px 48px; }
.value-item h4{
  font-size:17px; font-weight:600; margin-bottom:12px; letter-spacing:-.015em;
  padding-top:22px; border-top:2px solid var(--ink);
}
.value-item p{ font-size:13.5px; line-height:1.9; color:var(--muted); }

/* ---------- 联系页 ---------- */

.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:start; }
.contact-block{ margin-bottom:0; }
.contact-block h4{
  font-size:11.5px; letter-spacing:.14em; color:var(--muted);
  margin-bottom:14px; font-weight:600;
}
.contact-block .big{
  font-size:clamp(24px,2.4vw,32px); font-weight:700; letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.contact-block p{ font-size:14px; line-height:1.9; color:var(--ink-2); }
.contact-block .sub{ margin-top:6px; font-size:13px; color:var(--muted); }
.contact-block .big--sm{ font-size:clamp(19px,1.8vw,24px); }
.contact-block + .contact-block{ padding-top:36px; border-top:1px solid var(--line); }

.form{ background:#fff; padding:44px 40px 48px; border:1px solid var(--line); }
.form h3{ font-size:20px; font-weight:700; margin-bottom:8px; }
.form > p{ font-size:13px; color:var(--muted); margin-bottom:28px; }
.field{ margin-bottom:20px; }
.field label{
  display:block; font-size:11.5px; letter-spacing:.08em; color:var(--muted);
  margin-bottom:8px;
}
.field input, .field textarea{
  width:100%; border:0; border-bottom:1px solid var(--line); background:transparent;
  padding:10px 0; font:inherit; font-size:14.5px; color:var(--ink);
  outline:none; transition:border-color .25s;
}
.field input:focus, .field textarea:focus{ border-color:var(--leaf); }
.field textarea{ resize:vertical; min-height:88px; }
.field input::placeholder, .field textarea::placeholder{ color:#B3BBB7; }
.form .btn{ width:100%; margin-top:8px; }
.form-note{ font-size:11.5px; color:#9AA5A1; margin-top:16px; line-height:1.8; }

.map-strip{
  position:relative; height:340px; overflow:hidden; background:var(--sand);
  display:flex; align-items:center; justify-content:center;
}
.map-strip img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.5; }
.map-strip::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(251,250,247,.42), rgba(251,250,247,.6));
}
.map-strip p{
  position:relative; z-index:2; font-size:13.5px; color:var(--ink-2);
  letter-spacing:.04em; background:rgba(251,250,247,.86);
  padding:12px 22px; text-align:center; max-width:calc(100% - 44px);
}

/* ---------- 页脚（多页版） ---------- */

.foot-grid{
  display:grid;
  grid-template-columns:1.32fr 1.78fr .84fr 1.24fr;
  gap:56px 64px;
  padding:76px var(--gutter) 56px;
  align-items:start;
}
.foot-brand-col .brand{ display:flex; align-items:center; gap:12px; }
.foot-brand-col .brand-txt strong{ color:#fff; font-size:19px; letter-spacing:.05em; }
.foot-brand-col .brand-txt em{ color:rgba(255,255,255,.4); }
.foot-brand-col p{
  font-size:13px; line-height:1.85; color:rgba(255,255,255,.46);
  margin:22px 0 0; max-width:272px;
}
.foot-brand-meta{
  display:block; margin-top:16px;
  font-size:11.5px; letter-spacing:.05em; color:rgba(255,255,255,.26);
}
.foot h5{
  font-size:11px; font-weight:600; letter-spacing:.16em;
  color:rgba(255,255,255,.34); margin:0 0 20px;
}
.foot-col a{
  display:block; font-size:13px; color:rgba(255,255,255,.66);
  padding:7px 0; transition:color .2s, transform .25s var(--ease);
  white-space:nowrap;
}
.foot-col a:hover{ color:#fff; transform:translateX(3px); }
.foot-col--prod ul{
  list-style:none; margin:0; padding:0;
  display:grid; grid-auto-flow:column; grid-template-rows:repeat(3,auto);
  gap:0 28px;
}
.foot-col--prod li{ margin:0; }
.foot-col .tel{
  font-size:15px; font-weight:600; color:#fff; letter-spacing:.02em;
  font-variant-numeric:tabular-nums; padding:2px 0 5px;
}
.foot-addr{ white-space:normal !important; max-width:230px; line-height:1.7; }
.foot-base{
  border-top:1px solid rgba(255,255,255,.09);
  padding:22px var(--gutter);
  display:flex; align-items:center; justify-content:space-between;
  gap:18px; flex-wrap:wrap;
  font-size:11.5px; color:rgba(255,255,255,.32); letter-spacing:.04em;
}
.foot-icp{ color:rgba(255,255,255,.46); }
.foot-icp a{ color:inherit; border-bottom:1px solid rgba(255,255,255,.14); padding-bottom:1px; transition:color .2s, border-color .2s; }
.foot-icp a:hover{ color:rgba(255,255,255,.62); border-color:rgba(255,255,255,.4); }

/* ---------- 文字链接 ---------- */

.more-link{
  display:inline-flex; align-items:center; gap:9px; width:max-content;
  margin-top:34px; padding-bottom:4px;
  font-size:13px; font-weight:600; color:var(--leaf);
  border-bottom:1px solid rgba(14,107,91,.28);
  transition:gap .3s var(--ease), border-color .3s;
}
.more-link span{ transition:transform .3s var(--ease); }
.more-link:hover{ gap:15px; border-color:var(--leaf); }
.more-link--light{ color:#fff; border-color:rgba(255,255,255,.3); }
.more-link--light:hover{ border-color:#fff; }

/* ---------- 参数表 ---------- */

.spec{
  display:grid; grid-template-columns:repeat(2,1fr); gap:0 64px;
  border-top:1px solid var(--line);
}
.spec > div{
  display:flex; gap:22px; align-items:baseline;
  padding:20px 0; border-bottom:1px solid var(--line);
}
.spec > div > span{
  width:64px; flex:none; font-size:12px; letter-spacing:.08em; color:var(--muted);
}
.spec p{ font-size:13.5px; line-height:1.8; color:var(--ink-2); }

/* ---------- 流程 ---------- */

.step-grid{
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:2px solid var(--ink);
}
.step{ padding:28px 32px 8px 32px; border-right:1px solid var(--line); }
.step:first-child{ padding-left:0; }
.step:last-child{ border-right:0; }
.step span{
  display:block; font-size:11px; font-weight:700; letter-spacing:.14em;
  color:var(--leaf); margin-bottom:20px;
}
.step h4{ font-size:16.5px; font-weight:600; letter-spacing:-.015em; margin-bottom:10px; }
.step p{ font-size:13px; line-height:1.85; color:var(--muted); }

/* 定制开发：四列优势 + 八步流程 */
.value-grid--4{ grid-template-columns:repeat(4,1fr); gap:48px 36px; }
.step-grid--8 .step{ padding:26px 32px 26px 32px; border-bottom:1px solid var(--line); }
.step-grid--8 .step:nth-child(4n+1){ padding-left:0; }
.step-grid--8 .step:nth-child(4n){ border-right:0; }
.step-grid--8 .step:nth-child(n+5){ border-bottom:0; }

.service-note{
  margin-top:48px; padding-top:26px; border-top:1px solid var(--line);
  font-size:13px; line-height:1.9; color:var(--muted); max-width:820px;
}

/* ---------- 产品中心 ---------- */

.prod-grid{
  display:grid; grid-template-columns:repeat(2,1fr);
  border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.prod-card{
  display:flex; flex-direction:column;
  padding:46px 42px 38px;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  transition:background .4s var(--ease);
}
.prod-card:hover{ background:#fff; }
.prod-no{
  font-size:11px; font-weight:700; letter-spacing:.16em; color:var(--leaf);
  margin-bottom:22px;
}
.prod-card h3{
  font-size:clamp(21px, 1.9vw, 27px); font-weight:700;
  letter-spacing:-.028em; line-height:1.32; margin-bottom:14px;
  transition:color .25s;
}
.prod-card:hover h3{ color:var(--leaf); }
.prod-card > p{
  font-size:13.5px; line-height:1.9; color:var(--muted); margin-bottom:26px;
}
.prod-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-top:auto; }
.prod-tags span{
  font-size:11.5px; color:var(--ink-2); background:var(--sand);
  padding:5px 11px; border-radius:2px; white-space:nowrap;
}
.prod-more{
  display:inline-flex; align-items:center; gap:8px;
  margin-top:24px; font-size:12.5px; font-weight:600; color:var(--leaf);
}
.prod-more em{ font-style:normal; transition:transform .3s var(--ease); }
.prod-card:hover .prod-more em{ transform:translateX(5px); }

/* 产品页顶部切换条 */
.prod-tabs{ border-bottom:1px solid var(--line); background:var(--paper); }
.prod-tabs ul{
  display:flex; padding:0 var(--gutter);
  overflow-x:auto; scrollbar-width:none; -ms-overflow-style:none;
}
.prod-tabs ul::-webkit-scrollbar{ display:none; }
.prod-tabs a{
  display:block; padding:19px 22px 17px; white-space:nowrap;
  font-size:13.5px; color:var(--muted);
  border-bottom:2px solid transparent; transition:color .2s, border-color .2s;
}
.prod-tabs a:hover{ color:var(--ink); }
.prod-tabs a.is-on{ color:var(--leaf); border-color:var(--leaf); font-weight:600; }
.prod-tabs li:first-child a{ padding-left:0; }

/* 能力网格 */
.cap-grid{
  display:grid; grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.cap{
  padding:32px 30px 30px;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
}
.cap-grid--4{ grid-template-columns:repeat(2,1fr); }
.cap h4{
  font-size:15.5px; font-weight:600; letter-spacing:-.015em;
  margin-bottom:10px; display:flex; align-items:baseline; gap:8px;
}
.cap h4 i{
  font-style:normal; font-size:10.5px; font-weight:700;
  color:var(--leaf); letter-spacing:.08em; flex:none;
}
.cap p{ font-size:13px; line-height:1.85; color:var(--muted); }

/* 游船落地清单 */
.boat-list{
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:0 40px; border-top:1px solid var(--line);
}
.boat-list li{
  padding:15px 0 13px; border-bottom:1px solid var(--line);
  font-size:13.5px; font-weight:500; color:var(--ink-2);
  letter-spacing:-.005em; line-height:1.45;
  position:relative; padding-left:14px;
  transition:color .2s;
}
.boat-list li::before{
  content:""; position:absolute; left:0; top:22px;
  width:5px; height:1px; background:var(--leaf); opacity:.55;
}
.boat-list li:hover{ color:var(--leaf-d); }

/* ---------- 结尾 CTA 条 ---------- */

.cta-band{
  background:var(--leaf); color:#fff;
  padding:72px var(--gutter);
  display:flex; align-items:center; justify-content:space-between; gap:40px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(26px,2.8vw,40px); font-weight:700; letter-spacing:-.03em;
  line-height:1.25; margin-bottom:10px;
}
.cta-band p{ font-size:14px; color:rgba(255,255,255,.8); }
.cta-band .btn{ background:#fff; color:var(--leaf); }
.cta-band .btn:hover{ background:#071A17; color:#fff; }

/* ---------- 入场动画 ---------- */

.fade-up{ opacity:0; transform:translateY(28px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.fade-up.is-in{ opacity:1; transform:none; }

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  .hero-img{ animation:none; }
  .fade-up{ opacity:1; transform:none; transition:none; }
}

/* =====================================================
   响应式
   ===================================================== */

@media (max-width:1200px){
  .nav-links{ padding:0 clamp(14px, 2.2vw, 36px); }
  .nav-links a{ font-size:14px; letter-spacing:0; }
  .nav-act{ gap:18px; }
  .nav-tel{ font-size:13.5px; }
  .split{ min-height:560px; }
  .split-text{ padding-top:76px; padding-bottom:76px; }
  #boat .split-media{ display:flex; align-items:center; }
  #boat .split-media img{ width:100%; height:auto; aspect-ratio:4/3; object-position:center center; }
  .points li{ font-size:14px; }
  .points b{ width:88px; font-size:14px; }
  .case-list{ grid-template-columns:repeat(2,1fr); }
  .case-list li{ padding:26px 24px 26px 0; }
  .case-list li + li{ padding-left:24px; }
  .case-list li:nth-child(2n){ border-right:0; }

  .sys-grid{ grid-template-columns:repeat(2,1fr); }
  .sys-item{ padding:38px 30px 36px; }
  .case-grid{ gap:52px 36px; }
  .value-grid--4{ grid-template-columns:1fr 1fr; gap:44px 36px; }
  .step-grid--8 .step{ padding:24px 24px 24px 0; }
  .news-item{ grid-template-columns:128px 1fr 40px; gap:28px; }
  .foot-grid{ grid-template-columns:1fr 1fr; gap:44px 40px; }
  .foot-brand-col{ grid-column:1 / -1; }
  .foot-brand-col p{ max-width:520px; }
  .foot-col--prod{ grid-column:1 / -1; }
  .foot-col--prod ul{ grid-auto-flow:row; grid-template-rows:none; grid-template-columns:repeat(3,1fr); }
}

@media (max-width:980px){
  .nav-inner{ height:72px; gap:0; }
  .nav-act{ gap:14px; }
  .brand-txt strong{ white-space:nowrap; }
  .nav-links{
    position:fixed; top:72px; left:0; right:0;
    background:rgba(251,250,247,.99); backdrop-filter:blur(20px);
    flex:none; justify-content:flex-start;
    flex-direction:column; gap:0; padding:8px var(--gutter) 24px;
    border-bottom:1px solid var(--line);
    transform:translateY(-10px); opacity:0; pointer-events:none;
    transition:opacity .25s, transform .3s var(--ease);
  }
  .nav.is-open .nav-links{ transform:none; opacity:1; pointer-events:auto; }
  .nav-links a{ padding:16px 0; border-bottom:1px solid var(--line); font-size:15px; color:var(--ink)!important; }
  .nav-links a::after{ display:none; }
  .nav-toggle{ display:block; }
  .nav-tel{ display:none; }

  .hero{ min-height:600px; height:88vh; }
  .hero-index{
    display:flex; margin-top:44px;
    overflow-x:auto; scrollbar-width:none; -ms-overflow-style:none;
  }
  .hero-index::-webkit-scrollbar{ display:none; }
  .hero-index li{ flex:0 0 auto; padding-left:20px; }
  .hero-index li:first-child{ padding-left:0; }
  .hero-index a{ padding:15px 20px 17px 0; font-size:13px; white-space:nowrap; }
  .hero-index i{ margin-right:2px; }

  .split{ grid-template-columns:1fr; min-height:0; }
  .split--right .split-text,
  .split--left .split-text{
    order:2; padding:56px var(--gutter) 64px;
  }
  .split--right .split-media,
  .split--left .split-media{ order:1; height:400px; }
  #boat .split-media{ height:auto; }
  #boat .split-media img{ aspect-ratio:3/2; }
  .split-text h2{ font-size:clamp(30px,5.4vw,42px); }
  .lede{ margin-bottom:32px; }

  .duo{ grid-template-columns:1fr; }
  .duo-item{ height:480px; border-right:0; border-bottom:1px solid rgba(255,255,255,.12); }

  .cases-inner{ padding:72px var(--gutter) 64px; }
  .num-row{ gap:40px; margin-top:48px; padding-top:36px; }
  .num-row strong{ font-size:32px; }

  .contact{ padding:80px var(--gutter) 88px; }
  .contact-inner{ grid-template-columns:1fr; gap:48px; }
  .contact-lead{ margin-bottom:36px; }

  /* 内页 */
  .page-hero{ height:52vh; min-height:400px; }
  .page-hero-inner{ padding-bottom:48px; }
  .sec{ padding:72px var(--gutter); }
  .sec--tight{ padding:56px var(--gutter); }
  .sec-head{ grid-template-columns:1fr; gap:20px; margin-bottom:44px; }
  .sec-head .desc{ max-width:560px; text-align:left; justify-self:start; }
  .sys-grid{ grid-template-columns:1fr; }
  .arch{ padding:72px var(--gutter); }
  .arch-row{ grid-template-columns:1fr; gap:14px; padding:22px 0; }
  .arch-tag b{ margin-bottom:2px; }
  .case-grid{ grid-template-columns:1fr; gap:44px; }
  .case-card.is-wide .case-thumb{ aspect-ratio:16 / 9; }
  .news-item{ grid-template-columns:1fr; gap:12px; padding:26px 0; }
  .news-date em{ display:inline; margin-left:12px; }
  .news-arrow{ display:none; }
  .news-item:hover{ padding-left:0; }
  .article{ padding:64px var(--gutter) 76px; }
  .article-body{ font-size:15.5px; }
  .about-intro{ grid-template-columns:1fr; gap:40px; }
  .about-intro img{ width:100%; height:230px; object-fit:cover; object-position:center 38%; order:-1; }
  .stat-band{ grid-template-columns:repeat(2,1fr); gap:36px 24px; padding:52px var(--gutter); }
  .timeline li{ grid-template-columns:1fr; gap:8px; padding:22px 0; }
  .value-grid{ grid-template-columns:1fr; gap:36px; }
  .contact-grid{ grid-template-columns:1fr; gap:48px; }
  .cta-band{ padding:56px var(--gutter); }
  .foot-grid{ grid-template-columns:1fr 1fr; gap:34px 24px; padding:52px var(--gutter) 36px; }
  .foot-col--prod ul{ grid-auto-flow:row; grid-template-rows:none; grid-template-columns:1fr 1fr; gap:0 16px; }
  .foot-col--contact{ grid-column:1 / -1; }
  .foot-addr{ max-width:100%; }
  .foot-brand-col p{ max-width:100%; }
  .foot-base{ justify-content:flex-start; gap:8px; flex-direction:column; }
  .spec{ grid-template-columns:1fr; gap:0; }
  .step-grid{ grid-template-columns:1fr 1fr; }
  .step{ padding:24px 24px 22px 24px; border-bottom:1px solid var(--line); }
  .step:nth-child(odd){ padding-left:0; }
  .step:nth-child(2n){ border-right:0; }
  .step-grid--8 .step{ padding:22px 24px 22px 0; border-right:0; border-bottom:1px solid var(--line); }
  .step-grid--8 .step:nth-child(4n+1){ padding-left:0; }
  .step-grid--8 .step:nth-child(4n){ border-right:0; }
  .step-grid--8 .step:nth-child(n+5){ border-bottom:1px solid var(--line); }
  .step-grid--8 .step:last-child{ border-bottom:0; }
}

@media (max-width:640px){
  :root{ --gutter:22px; }
  .hero h1{ font-size:clamp(38px, 10.4vw, 52px); letter-spacing:-.04em; }
  .hero-lead{ font-size:14.5px; margin-bottom:34px; }
  .btn-lg{ height:52px; padding:0 28px; font-size:15px; }
  .hero-acts{ gap:22px; }
  .brand-txt strong{ font-size:18px; }
  .brand-mark{ height:36px; }

  .split-media{ height:280px; }
  .split-text{ padding:44px var(--gutter) 52px; }
  .points li{ flex-direction:column; gap:4px; padding:14px 0; }
  .points b{ width:auto; }

  .duo-item{ height:420px; }
  .case-list{ grid-template-columns:1fr; }
  .case-list li{ border-right:0; border-bottom:1px solid rgba(255,255,255,.12); padding:22px 0; }
  .case-list li + li{ padding-left:0; }
  .case-list li:last-child{ border-bottom:0; }
  .num-row{ gap:28px 40px; }
  .num-row strong{ font-size:28px; }

  .contact-list a{ font-size:17px; }
  .foot-inner{ flex-direction:column; align-items:flex-start; gap:10px; }

  /* 内页移动端 */
  .page-hero{ min-height:360px; height:46vh; }
  .page-hero h1{ font-size:clamp(32px, 8.6vw, 42px); }
  .page-hero .lead{ font-size:14px; }
  .crumb{ margin-bottom:20px; font-size:11px; }
  .sec{ padding:56px var(--gutter); }
  .sec-head h2{ font-size:clamp(26px, 7vw, 34px); }
  .sys-item{ padding:32px 24px 30px; }
  .sys-item h3{ font-size:19px; }
  .arch-head h2{ font-size:clamp(24px,6.4vw,30px); }
  .case-grid{ gap:38px; }
  .case-meta{ margin:18px 0 10px; }
  .news-item h3{ font-size:17.5px; }
  .article h1{ font-size:26px; }
  .article-body h2{ font-size:19px; margin-top:38px; }
  .article-quote{ padding:22px 24px; font-size:15px; }
  .stat-band{ grid-template-columns:1fr 1fr; }
  .foot-grid{ grid-template-columns:1fr 1fr; gap:32px 20px; }
  .cta-band h2{ font-size:24px; }
  .cta-band .btn{ width:100%; }
  .form{ padding:32px 24px 36px; }
  .step-grid{ grid-template-columns:1fr; }
  .step{ border-right:0; padding-right:0; padding-left:0; }
  .step:last-child{ border-bottom:0; }
}

/* ---------- 产品中心 · 响应式 ---------- */

@media (max-width:1200px){
  .prod-card{ padding:38px 34px 32px; }
  .boat-list{ grid-template-columns:repeat(3,1fr); gap:0 32px; }
}

@media (max-width:980px){
  .prod-grid{ grid-template-columns:1fr; }
  .prod-card{ padding:34px 26px 30px; }
  .cap-grid{ grid-template-columns:1fr 1fr; }
  .cap{ padding:26px 24px 24px; }
  .boat-list{ grid-template-columns:1fr 1fr; gap:0 28px; }
  .prod-tabs a{ padding:16px 18px 14px; font-size:13px; }
}

@media (max-width:640px){
  .cap-grid{ grid-template-columns:1fr; }
  .cap{ padding:22px 0 22px; border-right:0; }
  .boat-list{ grid-template-columns:1fr; }
  .prod-tags{ gap:6px; }
  .prod-tags span{ font-size:11px; padding:4px 9px; }
  .prod-tabs ul{ padding:0 var(--gutter); }
  .prod-tabs a{ padding:14px 14px 12px; font-size:12.5px; }
}