/* =========================================================
   汇世集团 HUISHI GROUP — 全站样式
   风格基调：白底 + 深浅蓝主色（取自集团 LOGO）+ 红橙点缀
   设计语言参考：商务稳重、方块标题符、中英双行标题、圆角卡片、大数字模块
   ========================================================= */

:root{
  /* 主色（源自 LOGO 徽标蓝） */
  --navy-900:#0B2545;
  --navy-800:#0F2E52;
  --navy-700:#14395F;
  --navy-600:#17496F;

  --brand-700:#15598F;
  --brand:#1E76B8;
  --brand-500:#2E8ACB;
  --brand-400:#4EA5DD;
  --cyan:#38A9E0;

  --sky-200:#D7E8F6;
  --sky-100:#EAF3FB;
  --sky-50:#F5FAFD;

  /* 点缀色（源自 LOGO 红/橙） */
  --accent:#D5392A;
  --accent-600:#C02F22;
  --accent-2:#E8803F;

  /* 中性色 */
  --ink:#16232F;
  --ink-2:#3E5062;
  --ink-3:#6C7D8F;
  --ink-4:#93A2B1;
  --line:#E3EBF3;
  --line-2:#EEF3F8;
  --white:#FFFFFF;

  --shadow-sm:0 1px 2px rgba(15,46,82,.06), 0 2px 8px rgba(15,46,82,.05);
  --shadow:0 6px 20px rgba(15,46,82,.08), 0 2px 6px rgba(15,46,82,.05);
  --shadow-lg:0 18px 46px rgba(15,46,82,.13), 0 6px 16px rgba(15,46,82,.07);

  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;

  --container:1200px;
  --ease:cubic-bezier(.22,.68,.32,1);

  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);color:var(--ink-2);background:var(--white);
  font-size:16px;line-height:1.78;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease);}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:-.015em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:inherit;font-size:inherit;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container-narrow{max-width:900px;}

/* ---------- 动效 ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
html.js [data-reveal].in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* =========================================================
   顶栏
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-2);transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 22px rgba(15,46,82,.09);}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;}
.brand{display:flex;align-items:center;flex-shrink:0;}
.brand-logo{height:42px;width:auto;}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 16px;border-radius:8px;font-size:15.5px;font-weight:600;color:var(--ink-2);
}
.nav-link:hover{color:var(--brand);background:var(--sky-50);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2.5px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--cyan));
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:1px solid var(--line);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--navy-700);transition:.3s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* =========================================================
   按钮
   ========================================================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:9px;font-size:15.5px;font-weight:600;
  letter-spacing:.02em;white-space:nowrap;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn svg{width:16px;height:16px;flex-shrink:0;}
.btn-primary{
  color:#fff;background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
  box-shadow:0 6px 18px rgba(30,118,184,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(30,118,184,.36);}
.btn-accent{
  color:#fff;background:linear-gradient(135deg,var(--accent-2),var(--accent-600));
  box-shadow:0 6px 18px rgba(213,57,42,.26);
}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(213,57,42,.34);}
.btn-ghost{border:1.5px solid var(--sky-200);color:var(--brand-700);background:#fff;}
.btn-ghost:hover{border-color:var(--brand-400);color:var(--brand);background:var(--sky-50);transform:translateY(-2px);}
.btn-light{border:1.5px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08);}
.btn-light:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.btn-sm{padding:10px 22px;font-size:14.5px;border-radius:8px;}
.btn-lg{padding:16px 38px;font-size:16.5px;}
.btn-block{width:100%;}

.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-weight:600;font-size:15px;}
.text-link svg{width:15px;height:15px;transition:transform .3s var(--ease);}
.text-link:hover svg{transform:translateX(4px);}

/* =========================================================
   章节 · 标题系统
   ========================================================= */
.section{padding:96px 0;position:relative;}
.section-sm{padding:64px 0;}
.section-tint{background:linear-gradient(180deg,var(--sky-50) 0%,var(--sky-100) 100%);}
.section-dark{background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy-700) 52%,var(--brand-700) 100%);color:rgba(255,255,255,.82);}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff;}
.section-line{border-top:1px solid var(--line);}

.section-head{max-width:760px;margin-bottom:56px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;
  font-size:12.5px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--brand);
}
.eyebrow::before{content:"";width:13px;height:13px;border-radius:2.5px;background:var(--brand);flex-shrink:0;}
.section-head.center .eyebrow{justify-content:center;}
.section-dark .eyebrow{color:var(--brand-400);}
.section-dark .eyebrow::before{background:var(--brand-400);}
.section-title{font-size:clamp(26px,3.2vw,38px);font-weight:800;letter-spacing:-.02em;}
.section-title-en{
  display:block;margin-top:9px;font-size:13.5px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink-4);
}
.section-dark .section-title-en{color:rgba(255,255,255,.5);}
/* 中文词组整体换行，避免"长期/主义者"这类被拆断 */
.keep{white-space:nowrap;}
.section-lead{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-2);}
.section-dark .section-lead{color:rgba(255,255,255,.76);}
.title-rule{width:52px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--cyan));margin-top:24px;}
.section-head.center .title-rule{margin-left:auto;margin-right:auto;}

/* =========================================================
   首页 HERO
   ========================================================= */
/* 首页主视觉：城市实景照片打底 + 左侧深蓝遮罩（保证标题/正文可读） */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-color:#0A2140;
  background-image:
    linear-gradient(100deg,
      rgba(6,24,44,.94) 0%,
      rgba(7,31,56,.84) 28%,
      rgba(9,41,72,.62) 56%,
      rgba(11,56,94,.36) 82%,
      rgba(13,64,106,.26) 100%),
    url("/assets/img/hero-bg.jpg");
  background-position:0 0, center 36%;
  background-size:auto, cover;
  background-repeat:no-repeat, no-repeat;
}
/* 底部压深，让照片自然过渡到数据条 */
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:38%;pointer-events:none;z-index:1;
  background:linear-gradient(180deg,transparent,rgba(6,24,44,.42));
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background:radial-gradient(820px 420px at 88% 0%,rgba(78,165,221,.20),transparent 64%);
}
/* 注意：只设上下内边距，左右内边距交给 .container（否则会覆盖掉容器的左右留白，
   导致 <=1200px 时内容紧贴屏幕边缘） */
.hero-inner{position:relative;z-index:2;padding-top:118px;padding-bottom:80px;}
.hero-copy{max-width:760px;}
.hero h1{
  margin:0;color:#fff;font-size:clamp(31px,4.6vw,58px);font-weight:800;
  line-height:1.18;letter-spacing:-.03em;
}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#7FC7F0,#BFE4FA);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:24px;max-width:640px;font-size:18px;line-height:1.9;color:rgba(255,255,255,.88);
  text-shadow:0 2px 16px rgba(3,16,32,.45);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:42px;}

/* 关键数据条 */
.hero-stats{
  position:relative;z-index:3;
  background:linear-gradient(180deg,rgba(7,26,46,.68) 0%,rgba(6,23,42,.96) 100%);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-stats .stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.hero-stats .stat{padding:30px 26px;border-right:1px solid rgba(255,255,255,.12);}
.hero-stats .stat:last-child{border-right:none;}
.hero-stats .stat-num{
  font-size:clamp(26px,3vw,38px);font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-stats .stat-num .u{font-size:.58em;font-weight:700;margin-left:3px;color:var(--brand-400);}
.hero-stats .stat-label{margin-top:9px;font-size:14px;color:rgba(255,255,255,.68);letter-spacing:.02em;}

/* =========================================================
   卡片 · 通用
   ========================================================= */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--sky-200);}
.card-pad{padding:34px 30px;}

.grid{display:grid;gap:26px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* 图标块 */
.icon-box{
  width:56px;height:56px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--sky-100),var(--sky-200));color:var(--brand-700);
}
.icon-box svg{width:26px;height:26px;}
.icon-box.accent{background:linear-gradient(135deg,#FDEBE7,#F9D5CC);color:var(--accent);}

/* 业务/能力卡 */
.feature-card{position:relative;overflow:hidden;height:100%;display:flex;flex-direction:column;}
.feature-card .card-pad{padding:36px 30px;display:flex;flex-direction:column;height:100%;}
.feature-card h3{margin-top:24px;font-size:20px;}
.feature-card p{margin-top:14px;font-size:15.5px;color:var(--ink-3);line-height:1.85;}
.feature-card .feature-en{margin-top:6px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-4);}
.feature-card .feature-list{margin-top:20px;padding-top:20px;border-top:1px dashed var(--line);display:flex;flex-direction:column;gap:11px;}
.feature-card .feature-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);}
.feature-card .feature-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-400);margin-top:9px;flex-shrink:0;}
.feature-card::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--cyan));
  transition:width .45s var(--ease);
}
.feature-card:hover::after{width:100%;}

/* 大数字卡（参考稿编号卡） */
.num-card{position:relative;padding:36px 30px 34px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease);}
.num-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);}
.num-card .num{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.6px var(--brand-400);
}
.num-card.is-fill .num{color:var(--brand);-webkit-text-stroke:0;}
.num-card h3{margin-top:20px;font-size:19px;}
.num-card p{margin-top:12px;font-size:15px;color:var(--ink-3);line-height:1.82;}
.num-card .num-en{margin-top:8px;font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-4);}

/* =========================================================
   分栏内容（左文右图 / 左右交替）
   ========================================================= */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;}
.split.reverse .split-media{order:-1;}
.split-body p{font-size:16.5px;line-height:1.95;color:var(--ink-2);}
.split-body p + p{margin-top:20px;}

/* 通用要点列表 */
.bullet-list{display:flex;flex-direction:column;gap:13px;margin-top:28px;padding-top:24px;border-top:1px dashed var(--line);}
.bullet-list li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-2);line-height:1.8;}
.bullet-list li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-400);}

/* 视觉面板（渐变 + 线稿水波） */
.visual-panel{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:400px;
  background:linear-gradient(140deg,var(--navy-800),var(--brand-700) 58%,var(--brand-500));
  box-shadow:var(--shadow-lg);
}
.visual-panel svg{position:absolute;inset:0;width:100%;height:100%;}
.visual-panel .vp-body{position:relative;z-index:2;padding:44px 40px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;min-height:400px;}
.visual-panel .vp-tag{
  display:inline-block;padding:6px 15px;border-radius:100px;margin-bottom:16px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  font-size:12.5px;font-weight:700;letter-spacing:.1em;color:#fff;
}
.visual-panel h3{color:#fff;font-size:24px;}
.visual-panel p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15.5px;line-height:1.85;}

/* 数据面板 */
.metric-panel{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.metric-panel .metric{background:#fff;padding:32px 28px;}
.metric-panel .metric-num{font-size:34px;font-weight:800;color:var(--brand-700);letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums;}
.metric-panel .metric-num .u{font-size:.55em;color:var(--brand-400);margin-left:2px;}
.metric-panel .metric-label{margin-top:10px;font-size:14.5px;color:var(--ink-3);}

/* =========================================================
   时间轴 / 发展历程
   ========================================================= */
.timeline{position:relative;padding-left:8px;}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand-400),var(--sky-200));}
.timeline-item{position:relative;padding:0 0 40px 44px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-400);box-shadow:0 0 0 4px var(--sky-100);
}
.timeline-year{font-size:22px;font-weight:800;color:var(--brand-700);letter-spacing:-.01em;}
.timeline-title{margin-top:8px;font-size:17px;font-weight:700;color:var(--ink);}
.timeline-desc{margin-top:8px;font-size:15px;color:var(--ink-3);line-height:1.82;}

/* =========================================================
   流程步骤
   ========================================================= */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{position:relative;padding-top:26px;}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:block;font-size:15px;font-weight:800;letter-spacing:.1em;color:var(--brand);
  padding-bottom:14px;border-bottom:2px solid var(--sky-200);margin-bottom:20px;
}
.step h4{font-size:17.5px;}
.step p{margin-top:10px;font-size:14.5px;color:var(--ink-3);line-height:1.8;}
.section-dark .step::before{border-bottom-color:rgba(255,255,255,.2);color:var(--brand-400);}
.section-dark .step p{color:rgba(255,255,255,.7);}

/* =========================================================
   联系 / CTA 区块
   ========================================================= */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:64px 60px;
  background:linear-gradient(120deg,var(--navy-900),var(--brand-700) 70%,var(--brand));
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(78,165,221,.4),transparent 68%);
}
.cta-band-inner{position:relative;z-index:2;display:flex;align-items:center;gap:44px;justify-content:space-between;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:clamp(23px,2.6vw,32px);}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.78);font-size:16px;max-width:560px;}

/* =========================================================
   页头（内页）
   ========================================================= */
.page-hero{
  position:relative;overflow:hidden;padding:74px 0 66px;color:#fff;
  background:linear-gradient(124deg,#0A2140,#103B65 42%,#15598F 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 320px at 88% 10%,rgba(78,165,221,.3),transparent 64%);
}
.page-hero-inner{position:relative;z-index:2;}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.025em;}
.page-hero .page-hero-en{margin-top:12px;font-size:13px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.52);}
.page-hero p{margin-top:20px;max-width:720px;font-size:16.5px;color:rgba(255,255,255,.78);line-height:1.9;}
.breadcrumb{display:flex;align-items:center;gap:9px;margin-bottom:22px;font-size:13.5px;color:rgba(255,255,255,.6);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span{opacity:.5;}

/* =========================================================
   新闻 / 文章
   ========================================================= */
.news-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:38px;}
.chip{
  display:inline-flex;align-items:center;padding:9px 20px;border-radius:100px;font-size:14.5px;font-weight:600;
  color:var(--ink-2);background:#fff;border:1px solid var(--line);transition:.28s var(--ease);
}
.chip:hover{border-color:var(--brand-400);color:var(--brand);}
.chip.is-active{background:linear-gradient(135deg,var(--brand-500),var(--brand-700));color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(30,118,184,.26);}

.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--sky-200);}
.news-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--sky-100),var(--sky-200));}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.055);}
.cover-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--brand-400);}
.cover-fallback svg{width:56px;height:56px;opacity:.5;}
.nf-cover .cover-fallback svg{width:78px;height:78px;opacity:.42;}
.news-cat{
  position:absolute;left:14px;top:14px;z-index:2;padding:5px 13px;border-radius:6px;
  background:rgba(11,37,69,.82);backdrop-filter:blur(6px);color:#fff;font-size:12.5px;font-weight:700;letter-spacing:.04em;
}
.news-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--ink-4);}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-4);}
.news-title{margin-top:14px;font-size:18.5px;font-weight:700;line-height:1.5;color:var(--ink);transition:color .25s var(--ease);}
.news-card:hover .news-title{color:var(--brand);}
.news-summary{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--ink-3);flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-more{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-2);}
.pin-flag{display:inline-flex;align-items:center;gap:5px;color:var(--accent);font-size:12.5px;font-weight:700;}

.news-feature{display:grid;grid-template-columns:1.15fr 1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:30px;transition:box-shadow .35s var(--ease);}
.news-feature:hover{box-shadow:var(--shadow-lg);}
.news-feature .nf-cover{position:relative;min-height:340px;background:linear-gradient(135deg,var(--sky-100),var(--sky-200));}
.news-feature .nf-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.news-feature .nf-body{padding:48px 46px;display:flex;flex-direction:column;justify-content:center;}
.news-feature h3{margin-top:16px;font-size:clamp(21px,2.4vw,28px);line-height:1.42;}
.news-feature .nf-summary{margin-top:18px;font-size:16px;color:var(--ink-3);line-height:1.9;}

.empty-state{padding:80px 24px;text-align:center;color:var(--ink-4);border:1px dashed var(--line);border-radius:var(--radius);background:var(--sky-50);}
.empty-state svg{width:52px;height:52px;margin:0 auto 18px;color:var(--sky-200);}

.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:52px;}
.pagination a,.pagination span{
  min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;border:1px solid var(--line);font-size:14.5px;font-weight:600;color:var(--ink-2);background:#fff;
  transition:.25s var(--ease);
}
.pagination a:hover{border-color:var(--brand-400);color:var(--brand);}
.pagination .is-active{background:linear-gradient(135deg,var(--brand-500),var(--brand-700));color:#fff;border-color:transparent;}
.pagination .is-disabled{opacity:.42;pointer-events:none;}

/* ---------- 文章正文排版 ---------- */
.article-shell{background:#fff;}
.article-head{padding:0 0 34px;border-bottom:1px solid var(--line);}
.article-head h1{font-size:clamp(25px,3.1vw,36px);line-height:1.42;letter-spacing:-.02em;}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px;font-size:14px;color:var(--ink-4);}
.article-meta .cat{padding:4px 12px;border-radius:6px;background:var(--sky-100);color:var(--brand-700);font-weight:700;font-size:13px;}
.prose{font-size:16.8px;line-height:2.05;color:var(--ink-2);}
.prose > * + *{margin-top:22px;}
.prose h2{margin-top:48px;font-size:24px;line-height:1.5;padding-left:16px;border-left:4px solid var(--brand);}
.prose h3{margin-top:36px;font-size:20px;}
.prose h4{margin-top:28px;font-size:17.5px;}
.prose p{margin:0;}
.prose strong{color:var(--ink);font-weight:700;}
.prose a{color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.prose ul,.prose ol{padding-left:4px;display:flex;flex-direction:column;gap:12px;}
.prose ul li{position:relative;padding-left:24px;}
.prose ul li::before{content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand-400);}
.prose ol{counter-reset:ol;padding-left:0;}
.prose ol li{position:relative;padding-left:34px;counter-increment:ol;}
.prose ol li::before{
  content:counter(ol);position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;
  background:var(--sky-100);color:var(--brand-700);font-size:12.5px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.prose blockquote{
  margin:32px 0;padding:22px 26px;background:var(--sky-50);border-left:4px solid var(--brand-400);
  border-radius:0 10px 10px 0;color:var(--ink-2);font-size:16px;
}
.prose img{border-radius:12px;margin:32px 0;box-shadow:var(--shadow);}
.prose hr{border:none;border-top:1px solid var(--line);margin:44px 0;}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:30px 0;}
.prose th,.prose td{border:1px solid var(--line);padding:12px 16px;text-align:left;}
.prose th{background:var(--sky-50);font-weight:700;color:var(--ink);}
.prose .figure-cap{margin-top:-18px;text-align:center;font-size:13.5px;color:var(--ink-4);}
.article-foot{margin-top:56px;padding-top:30px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.article-tags{display:flex;gap:9px;flex-wrap:wrap;}
.article-tags span{padding:5px 13px;border-radius:100px;background:var(--sky-50);border:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px;}
.article-nav a{display:block;padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius);transition:.3s var(--ease);}
.article-nav a:hover{border-color:var(--brand-400);box-shadow:var(--shadow);transform:translateY(-3px);}
.article-nav .an-label{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--ink-4);text-transform:uppercase;}
.article-nav .an-title{margin-top:10px;font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.article-nav .an-right{text-align:right;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}

/* =========================================================
   联系页
   ========================================================= */
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start;}
.info-list{display:flex;flex-direction:column;gap:18px;}
.info-item{display:flex;gap:18px;padding:24px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.3s var(--ease);}
.info-item:hover{border-color:var(--sky-200);box-shadow:var(--shadow);}
.info-item .icon-box{width:46px;height:46px;border-radius:11px;flex-shrink:0;}
.info-item .icon-box svg{width:21px;height:21px;}
.info-item .info-label{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-4);text-transform:uppercase;}
.info-item .info-value{margin-top:8px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.7;word-break:break-all;}
.info-item .info-value a:hover{color:var(--brand);}
.info-item .info-note{margin-top:6px;font-size:13.5px;color:var(--ink-4);}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 38px;box-shadow:var(--shadow-sm);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{display:block;margin-bottom:9px;font-size:14px;font-weight:600;color:var(--ink-2);}
.field label .req{color:var(--accent);margin-left:3px;}
.field input,.field textarea,.field select{
  width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:10px;background:var(--sky-50);
  color:var(--ink);font-size:15px;transition:.25s var(--ease);
}
.field textarea{min-height:132px;resize:vertical;line-height:1.75;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand-400);background:#fff;box-shadow:0 0 0 4px rgba(30,118,184,.1);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-4);}
.form-note{margin-top:16px;font-size:13.5px;color:var(--ink-4);line-height:1.75;}
.form-alert{margin-top:18px;padding:14px 18px;border-radius:10px;font-size:14.5px;display:none;}
.form-alert.ok{display:block;background:#EAF7F0;color:#1B7A4B;border:1px solid #BFE6D2;}
.form-alert.warn{display:block;background:#FEF6E8;color:#9A6412;border:1px solid #F3DFB6;}

.map-embed{margin-top:26px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--sky-50);}
.map-embed iframe{width:100%;height:340px;border:0;display:block;}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{background:linear-gradient(160deg,var(--navy-900),#0A1E3A);color:rgba(255,255,255,.66);padding:72px 0 0;margin-top:0;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:52px;padding-bottom:56px;}
.footer-logo{height:40px;width:auto;margin-bottom:20px;}
.footer-desc{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:22px;letter-spacing:.04em;}
.footer-col a{display:block;padding:6px 0;font-size:14.5px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:#fff;}
.footer-contact p{font-size:14.5px;line-height:1.85;margin-bottom:10px;color:rgba(255,255,255,.66);}
/* 修正：.footer-col a 的 display:block 会把电话/邮箱挤到下一行，这里恢复为行内 */
.footer-contact p a{display:inline;padding:0;font-size:inherit;color:rgba(255,255,255,.82);}
.footer-contact p.fc-nowrap{white-space:nowrap;}
.footer-contact a:hover{color:#fff;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:26px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-meta{display:flex;gap:22px;}
.footer-meta a:hover{color:#fff;}

/* =========================================================
   响应式
   断点：1440+（放大容器）→1280→1080→900→620→400
   每一档同时调整「栅格列数 + 区块间距 + 字号」，避免跨档时比例突跳
   ========================================================= */

/* 大屏：容器适度放宽，内容带不至于过窄显得单薄 */
@media (min-width:1440px){
  :root{--container:1280px;}
}

@media (max-width:1280px){
  .section{padding:86px 0;}
  .section-sm{padding:58px 0;}
  .section-head{margin-bottom:50px;}
  .hero-inner{padding-top:104px;padding-bottom:74px;}
  .split{gap:48px;}
  .footer-top{gap:40px;padding-bottom:48px;}
  .page-hero{padding:66px 0 58px;}
  .news-feature .nf-body{padding:44px 38px;}
}

@media (max-width:1080px){
  .section{padding:76px 0;}
  .section-sm{padding:52px 0;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:34px 28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:38px 34px;}
  .split{gap:42px;}
  .news-feature .nf-body{padding:38px 32px;}
  .news-feature .nf-cover{min-height:300px;}
  .cta-band{padding:52px 44px;}
  .page-hero{padding:60px 0 52px;}
}

@media (max-width:900px){
  /* 顶栏 */
  .header-inner{height:68px;gap:16px;}
  .brand-logo{height:36px;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .site-nav{
    position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:#fff;padding:12px 20px 24px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(15,46,82,.14);
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:.3s var(--ease);
    max-height:calc(100vh - 68px);overflow:auto;
  }
  .site-nav.is-open{transform:none;opacity:1;pointer-events:auto;}
  .nav-link{padding:15px 8px;font-size:16.5px;border-bottom:1px solid var(--line-2);border-radius:0;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--brand);}

  /* 节奏 */
  .container{padding:0 20px;}
  .section{padding:62px 0;}
  .section-sm{padding:46px 0;}
  .section-head{margin-bottom:40px;}
  .section-lead{font-size:16px;}
  .page-hero{padding:52px 0 44px;}

  /* HERO */
  .hero-inner{padding-top:92px;padding-bottom:50px;}
  .hero-mark{display:none;}
  .hero-sub{margin-top:20px;font-size:16.5px;}
  .hero-actions{margin-top:32px;}
  .hero-stats .stat-row{grid-template-columns:repeat(2,1fr);}
  .hero-stats .stat{padding:22px 20px;border-right:none;border-bottom:1px solid rgba(255,255,255,.12);}
  .hero-stats .stat:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);}
  .hero-stats .stat:nth-last-child(-n+2){border-bottom:none;}

  /* 布局 */
  .split{grid-template-columns:1fr;gap:34px;}
  .split.reverse .split-media{order:0;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:34px;}
  .news-feature{grid-template-columns:1fr;}
  .news-feature .nf-cover{min-height:210px;}
  .news-feature .nf-body{padding:30px 24px;}
  .cta-band{padding:42px 26px;}
  .cta-band-inner{gap:26px;}
  .article-nav{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .visual-panel,.visual-panel .vp-body{min-height:320px;}
  .visual-panel .vp-body{padding:34px 28px;}
}

@media (max-width:620px){
  /* 主视觉背景：竖屏视口只能露出照片中间一条，遮罩加重，照片退为氛围纹理 */
  .hero{
    background-image:
      linear-gradient(180deg,rgba(6,24,44,.82) 0%,rgba(6,24,44,.86) 45%,rgba(7,26,48,.92) 100%),
      url("/assets/img/hero-bg.jpg");
    background-position:0 0, center 34%;
  }

  /* 节奏 */
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .section-sm{padding:40px 0;}
  .section-head{margin-bottom:32px;}
  .section-lead{margin-top:16px;font-size:15.5px;}
  .eyebrow{margin-bottom:14px;}
  .title-rule{margin-top:18px;}
  .page-hero{padding:40px 0 36px;}
  .page-hero p{margin-top:16px;font-size:15.5px;}
  .breadcrumb{margin-bottom:16px;}

  /* HERO */
  .hero-inner{padding-top:78px;padding-bottom:40px;}
  .hero h1{font-size:clamp(28px,7.4vw,36px);}
  .hero-sub{margin-top:16px;font-size:15.5px;line-height:1.85;}
  .hero-actions{margin-top:26px;gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-stats .stat{padding:18px 16px;}
  .hero-stats .stat-num{font-size:26px;}
  .hero-stats .stat-label{margin-top:6px;font-size:12.5px;}

  /* 卡片与栅格 */
  .grid{gap:18px;}
  .card-pad{padding:26px 22px;}
  .feature-card .card-pad{padding:28px 22px;}
  .feature-card h3{margin-top:18px;font-size:18.5px;}
  .feature-card p{font-size:15px;}
  .num-card{padding:26px 22px 24px;}
  .num-card .num{font-size:36px;}
  .num-card h3{margin-top:16px;font-size:18px;}
  .news-grid,.related-grid,.grid-4,.steps,.metric-panel,.footer-top{grid-template-columns:1fr;}
  .news-grid,.related-grid{gap:18px;}
  .steps{gap:26px;}
  .metric-panel .metric{padding:24px 20px;}
  .split{gap:26px;}
  .split-body p{font-size:15.5px;line-height:1.9;}
  .bullet-list{margin-top:22px;padding-top:20px;}

  /* 视觉面板 */
  .visual-panel,.visual-panel .vp-body{min-height:262px;}
  .visual-panel .vp-body{padding:26px 22px;}
  .visual-panel h3{font-size:20px;}
  .visual-panel p{font-size:14.5px;}

  /* 新闻 */
  .news-body{padding:22px 22px 24px;}
  .news-title{font-size:17px;}
  .news-summary{font-size:14px;}
  .news-feature .nf-body{padding:26px 22px;}
  .pagination a,.pagination span{min-width:38px;height:38px;padding:0 12px;}

  /* 联系 / 表单 */
  .form-card{padding:26px 20px;}
  .field input,.field textarea,.field select{padding:12px 14px;}
  .info-item{padding:20px 18px;gap:14px;}
  .info-item .info-value{font-size:15.5px;}
  .map-embed iframe{height:240px;}

  /* CTA */
  .cta-band{padding:32px 20px;border-radius:16px;}
  .cta-band-inner{gap:22px;}

  /* 页脚 */
  .site-footer{padding:52px 0 0;}
  .footer-top{gap:26px;padding-bottom:38px;}
  .footer-logo{height:34px;margin-bottom:16px;}
  .footer-bottom{padding:20px 0;font-size:12.5px;}
  .footer-meta{gap:16px;}

  /* 文章 */
  .prose{font-size:16px;line-height:1.95;}
  .article-head{padding-bottom:26px;}
}

/* 小屏手机 */
@media (max-width:400px){
  .hero h1{font-size:26px;}
  .hero-stats .stat{padding:16px 12px;}
  .hero-stats .stat-num{font-size:23px;}
  .hero-stats .stat-label{font-size:12px;}
  .container{padding:0 16px;}
}

/* 打印 */
@media print{
  .site-header,.site-footer,.hero-actions,.article-nav,.cta-band{display:none;}
  body{color:#000;}
}