/* ============================================================
   CHS 官网 — 基准版式来自 0903官网UI/index.html（用户确认的参考稿）
   数据驱动：文字/图片由 site.js 从 content.json 渲染
   ============================================================ */

/* ============ Design Tokens ============ */
:root{
  --blue:#0A3D91;        /* 品牌深蓝 */
  --azure:#2F6BFF;       /* 亮蓝（logo 主色） */
  --azure-soft:#EAF1FF;  /* 浅蓝底 */
  --sky:#7FA8FF;         /* 天蓝过渡 */
  --eco:#00A868;         /* 生态绿点缀 */
  --ink:#0B1B3A;         /* 正文深色 */
  --ink-2:#44557A;       /* 次级文字 */
  --paper:#FFFFFF;
  --paper-2:#F5F8FE;     /* 区块浅底 */
  --line:rgba(10,61,145,.10);
  --shadow-lg:0 24px 60px -18px rgba(10,61,145,.22), 0 8px 24px -12px rgba(10,61,145,.14);
  --shadow-md:0 14px 36px -14px rgba(10,61,145,.20);
  --shadow-sm:0 6px 18px -8px rgba(10,61,145,.16);
  --grad-blue:linear-gradient(135deg,#0A3D91 0%,#2F6BFF 100%);
  --grad-teal:linear-gradient(135deg,#2F6BFF 0%,#00A868 100%);
  --grad-eco:linear-gradient(135deg,#0A7A4E 0%,#00A868 50%,#2BB37F 100%);
  --grad-mint:linear-gradient(135deg,#2BB37F 0%,#7FE8BC 100%);
  --radius:20px;
  --container:1200px;
  --font:"Helvetica Neue",-apple-system,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.wrap{max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ 通用组件 ============ */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border-radius:999px;font-weight:600;font-size:15px;letter-spacing:.2px;transition:.25s cubic-bezier(.2,.7,.3,1);cursor:pointer;border:0}
.btn-primary{background:var(--grad-blue);color:#fff;box-shadow:0 12px 28px -8px rgba(47,107,255,.45)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px -8px rgba(47,107,255,.55)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.45);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--blue);border:1.5px solid rgba(10,61,145,.22);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--azure);color:var(--azure);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--azure);background:linear-gradient(120deg,rgba(47,107,255,.10),rgba(0,168,104,.08));border:1px solid rgba(47,107,255,.18)}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--azure);box-shadow:0 0 10px var(--azure)}
h2.sec-title{font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.18;letter-spacing:-.5px}
.sec-sub{color:var(--ink-2);font-size:16.5px;max-width:560px}
.grad-text{background:var(--grad-teal);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ============ Topbar (white) ============ */
.topbar{background:#fff;border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:24px}
.topbar-left{display:flex;align-items:center;gap:10px;font-weight:500}
.topbar-left .dot{width:8px;height:8px;border-radius:50%;background:var(--eco);box-shadow:0 0 0 4px rgba(0,168,104,.12)}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{color:var(--ink-2);font-weight:600}
.topbar-right a:hover{color:var(--azure)}

/* ============ Nav (solid blue) ============ */
header{position:sticky;top:0;z-index:100;background:var(--grad-blue);box-shadow:0 6px 20px -10px rgba(10,61,145,.45)}
.nav{display:flex;align-items:center;gap:32px;height:74px;color:#fff}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;letter-spacing:.2px;color:#fff}
.logo-tile{width:42px;height:42px;border-radius:11px;background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(0,0,0,.18);overflow:hidden}
.logo-tile img{width:36px;height:36px;object-fit:contain}
.logo-text{display:flex;flex-direction:column;line-height:1.05}
.logo-text .logo-sub{font-size:10.5px;font-weight:600;color:rgba(255,255,255,.72);letter-spacing:2.4px;margin-top:2px}
.nav-links{display:flex;gap:28px;margin-left:18px;font-size:14.5px;font-weight:500;color:rgba(255,255,255,.88)}
.nav-links a{position:relative;padding:8px 0;transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--grad-teal);transition:width .25s}
.nav-links a:hover::after{width:100%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.lang-switch{display:flex;background:rgba(255,255,255,.14);border-radius:999px;padding:3px;border:1px solid rgba(255,255,255,.22)}
.lang-switch button{border:0;background:transparent;padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;color:rgba(255,255,255,.78);cursor:pointer;transition:.2s}
.lang-switch button.on{background:#fff;color:var(--blue)}
.nav .btn-touch{padding:12px 24px;background:#fff;color:var(--blue);font-size:14px;border-radius:999px;font-weight:700;box-shadow:0 8px 20px rgba(0,0,0,.16);transition:.25s;display:inline-flex;align-items:center;gap:8px}
.nav .btn-touch:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.22)}

/* ============ Hero（蓝色渐变大图 + 居中文字 + 社媒四标）============ */
.hero{position:relative;min-height:540px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(125deg,#082E6E 0%,#0A3D91 34%,#1D56D6 68%,#2F6BFF 100%)}
/* 后台可换的底层背景图（未设置时隐藏，仅显示渐变） */
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.9}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(125deg,rgba(8,46,110,.82) 0%,rgba(10,61,145,.62) 40%,rgba(29,86,214,.42) 100%)}
/* 光效球（渐变装饰，非图片） */
.hero-glow{position:absolute;border-radius:50%;pointer-events:none}
.hero-glow.g1{width:640px;height:640px;top:-260px;right:-180px;background:radial-gradient(circle,rgba(127,168,255,.34),transparent 68%)}
.hero-glow.g2{width:520px;height:520px;bottom:-240px;left:-160px;background:radial-gradient(circle,rgba(0,168,104,.20),transparent 68%)}
.hero-glow.g3{width:360px;height:360px;top:38%;left:16%;background:radial-gradient(circle,rgba(255,255,255,.10),transparent 70%)}
/* 点阵纹理 */
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);background-size:30px 30px;mask-image:radial-gradient(ellipse 75% 70% at 50% 45%,#000 30%,transparent 75%)}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:820px;padding:56px 32px}
.hero h1{font-size:clamp(40px,5vw,64px);font-weight:800;line-height:1.12;letter-spacing:-1px;color:#fff;margin:26px 0 24px}
.hero h1 .line2{position:relative;display:inline-block;color:#fff}
.hero h1 .line2::after{content:"";position:absolute;left:0;right:0;bottom:-16px;height:14px;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 420 14' fill='none'><path d='M4 8 C 60 2, 120 13, 180 6 S 300 12, 416 5' stroke='%237FA8FF' stroke-width='4' stroke-linecap='round' fill='none'/><path d='M10 10 C 80 6, 150 12, 220 8 S 340 11, 410 7' stroke='%2300A868' stroke-width='2.4' stroke-linecap='round' fill='none' opacity='.85'/></svg>") no-repeat center/contain;pointer-events:none}
.hero .lead{font-size:18px;color:rgba(255,255,255,.88);max-width:640px;margin:0 auto 38px}
.hero .eyebrow{color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.32);backdrop-filter:blur(6px)}
.hero .eyebrow::before{background:#fff;box-shadow:0 0 10px rgba(255,255,255,.9)}
.hero-trust{display:flex;align-items:center;justify-content:center;gap:22px;color:rgba(255,255,255,.85);font-size:13.5px;flex-wrap:wrap}
.hero-trust .dot-sep{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45)}
/* 社媒四标（竖排左侧，后台可配链接） */
.hero-social{position:absolute;left:34px;top:50%;transform:translateY(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:14px}
.hero-social::after{content:"";width:1.5px;height:88px;background:linear-gradient(180deg,rgba(255,255,255,.45),transparent)}
.hero-social a{width:42px;height:42px;border-radius:50%;border:1.5px solid rgba(255,255,255,.42);background:rgba(255,255,255,.10);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;color:#fff;transition:.25s}
.hero-social a:hover{background:#fff;color:var(--blue);border-color:#fff;transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.3)}
.hero-social svg{width:17px;height:17px;fill:currentColor}

/* ============ Showcase（3 张卡片 · sticky 上滑堆叠）============ */
.showcase{padding:74px 0 64px;background:#EDF0F4}
.showcase .sec-head{text-align:center;max-width:780px;margin:0 auto 38px}
.showcase .sec-head .sec-sub{margin:12px auto 0;font-size:15px;color:#7A8294}
.showcase .sec-title{color:var(--ink)}
.showcase .grad-text{background:linear-gradient(120deg,#0F7A4E 0%,#7FE8BC 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.showcase .eyebrow{color:#0F7A4E;background:rgba(127,232,188,.18);border-color:rgba(127,232,188,.45)}
.showcase .eyebrow::before{background:#7FE8BC;box-shadow:0 0 10px rgba(127,232,188,.75)}
/* flex 纵向排布（sticky 堆叠在 flex 容器内可用） */
.show-stack{display:flex;flex-direction:column;gap:22px;padding-bottom:36px}
.s-card{display:grid;grid-template-columns:1.05fr .95fr;gap:0;align-items:stretch;background:#FFFFFF;border-radius:24px;overflow:hidden;box-shadow:0 10px 28px -16px rgba(10,61,145,.18);border:1px solid rgba(10,61,145,.06);transition:.3s cubic-bezier(.2,.7,.3,1)}
/* —— 上滑堆叠动效：第 1 张固定，后面两张往上滑盖住前一张 —— */
.s-card{position:sticky}
.s-card:nth-child(1){top:92px}
.s-card:nth-child(2){top:108px}
.s-card:nth-child(3){top:124px}
.s-card:hover{box-shadow:0 18px 40px -16px rgba(10,61,145,.28);border-color:rgba(127,232,188,.55)}
.s-card-body{padding:40px 44px;display:flex;flex-direction:column;justify-content:space-between;gap:20px;background:#FFFFFF}
.s-card-num{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.s-card-num .num{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.5px;display:inline-flex;align-items:center}
.s-card-num .num::before{content:"";display:inline-block;width:11px;height:11px;border-radius:50%;background:#7FE8BC;margin-right:12px;vertical-align:middle;box-shadow:0 0 0 5px rgba(127,232,188,.22), 0 0 14px rgba(127,232,188,.45)}
.s-card-num .num em{font-style:normal;color:#5E7A6E;font-weight:600;margin-left:6px;font-size:12.5px;letter-spacing:1.5px;text-transform:uppercase}
.s-card-body h3{font-size:38px;font-weight:800;line-height:1.1;letter-spacing:-.5px;color:var(--blue);margin-bottom:14px}
.s-card-body p{font-size:15.5px;line-height:1.65;color:var(--ink-2);max-width:480px;margin-bottom:6px}
.s-card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.s-card-tags span{padding:7px 16px;border-radius:999px;font-size:12.5px;font-weight:600;color:#0F7A4E;background:rgba(127,232,188,.14);border:1px solid rgba(127,232,188,.40);letter-spacing:.3px}
.s-card-img{position:relative;overflow:hidden;min-height:380px}
.s-card-img img{width:100%;height:100%;object-fit:cover;display:block}
.s-card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(10,61,145,.18) 0%,rgba(10,61,145,0) 38%,rgba(0,168,104,.10) 100%);pointer-events:none}
.s-card-cta{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;background:var(--grad-blue);color:#fff;font-size:14px;font-weight:700;box-shadow:0 10px 24px rgba(10,61,145,.28);transition:.2s;align-self:flex-start}
.s-card-cta:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(10,61,145,.36)}
.s-card-cta svg{width:14px;height:14px;transition:transform .2s}
.s-card-cta:hover svg{transform:translateX(3px)}
/* 整卡可点（跳转服务页） */
.s-card{cursor:pointer}

/* ============ 数据条 + 圆形视频徽章 ============ */
.stats-sec{padding:80px 0;position:relative;background:
  repeating-linear-gradient(90deg,transparent 0 96px,rgba(255,255,255,.05) 96px 97px),
  radial-gradient(720px 400px at 85% 10%,rgba(127,232,188,.20),transparent 60%),
  linear-gradient(135deg,rgba(10,61,145,.22) 0%,rgba(47,107,255,.20) 48%,rgba(15,122,78,.20) 100%)}
.stats-grid{display:grid;grid-template-columns:1fr 460px;gap:30px;align-items:stretch}
.stat-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.stat-card{background:rgba(255,255,255,.66);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:20px;padding:30px 28px;border:1px solid rgba(255,255,255,.8);box-shadow:0 10px 32px -14px rgba(10,61,145,.18);position:relative;overflow:hidden;transition:.28s}
.stat-card::after{content:"";position:absolute;left:26px;bottom:0;width:44px;height:4px;border-radius:4px 4px 0 0;background:linear-gradient(90deg,#2F6BFF,#2BB37F)}
.card-dots{position:absolute;top:18px;right:22px;display:flex;gap:5px}
.card-dots i{width:6px;height:6px;border-radius:50%;background:#2F6BFF;box-shadow:0 0 8px rgba(47,107,255,.55)}
.card-dots i:nth-child(2){animation:dotPulse 2.2s ease-in-out infinite}
.card-dots i:nth-child(3){animation:dotPulse 2.2s ease-in-out .4s infinite}
.stat-card:nth-child(even) .card-dots i{background:#2BB37F;box-shadow:0 0 8px rgba(43,179,127,.55)}
@keyframes dotPulse{0%,100%{opacity:.5;transform:scale(.85)}50%{opacity:1;transform:scale(1.15)}}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px -16px rgba(10,61,145,.25);border-color:rgba(47,107,255,.45);background:rgba(255,255,255,.8)}
.stat-card .big{font-size:46px;font-weight:800;letter-spacing:-1.5px;background:linear-gradient(120deg,#0A3D91 0%,#2F6BFF 60%,#0F7A4E 110%);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.05}
.stat-card .big em{font-style:normal;font-size:24px}
.stat-card .lab{margin-top:8px;font-weight:600;font-size:15px}
.stat-card .des{font-size:12.5px;color:var(--ink-2);margin-top:3px}
.badge-panel{background:transparent;border:none;border-radius:0;padding:8px 10px;color:#fff;box-shadow:none;display:flex;flex-direction:column;gap:18px;position:relative;overflow:visible}
.badge-panel::before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(127,232,188,.16),transparent 70%);top:-90px;right:-110px;pointer-events:none}
.play-eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:1.5px;color:#0F7A4E;background:rgba(127,232,188,.24);border:1px solid rgba(43,179,127,.45);align-self:flex-start;text-transform:uppercase}
.play-eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:#2BB37F;box-shadow:0 0 10px rgba(43,179,127,.8)}
.play-title{font-size:27px;font-weight:800;line-height:1.2;letter-spacing:-.5px;color:#0A2E63;margin:0}
.play-title em{font-style:normal;background:linear-gradient(120deg,#2F6BFF 0%,#2BB37F 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.play-sub{font-size:13.5px;color:#3D5578;line-height:1.65;margin:0}
.play-btn{position:relative;width:184px;height:184px;margin:6px auto 4px;border-radius:50%;background:radial-gradient(circle at 32% 30%,rgba(255,255,255,.9),rgba(255,255,255,.4) 50%,rgba(226,246,236,.25) 100%);border:1.5px solid rgba(47,107,255,.35);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 18px 50px -12px rgba(10,61,145,.26),inset 0 2px 12px rgba(255,255,255,.65)}
.play-btn::after{content:"";position:absolute;inset:-12px;border-radius:50%;border:1px dashed rgba(43,179,127,.55);animation:ringSpin 22s linear infinite}
.play-btn .ring-svg{position:absolute;inset:0;width:100%;height:100%;animation:ringSpin 22s linear infinite}
.play-btn .ring-svg text{font-size:13px;font-weight:700;letter-spacing:3px;fill:rgba(10,61,145,.72)}
.play-btn .play-icon{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#7FE8BC 0%,#2BB37F 100%);display:flex;align-items:center;justify-content:center;color:#0A3D91;box-shadow:0 10px 28px -4px rgba(43,179,127,.6),inset 0 2px 6px rgba(255,255,255,.4)}
.play-btn .play-icon svg{margin-left:3px}
.play-btn:hover{transform:scale(1.04);transition:.3s}
@keyframes ringSpin{to{transform:rotate(360deg)}}
.play-meta{display:flex;align-items:center;justify-content:center;gap:10px;font-size:12px;color:#3D5578;letter-spacing:1.2px;font-weight:600;text-transform:uppercase}
.play-meta span.dot-sep{width:4px;height:4px;border-radius:50%;background:#2BB37F}

/* ============ 地图网络（深蓝紧凑版 + 互动航线）============ */
.map-sec{position:relative;padding:50px 0 0;background:linear-gradient(155deg,#061A3F 0%,#082657 55%,#0A3D91 100%);overflow:hidden}
.map-sec::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(127,168,255,.13) 1px,transparent 1px);background-size:30px 30px;mask-image:radial-gradient(900px 540px at 50% 60%,#000,transparent 78%);pointer-events:none}
.map-sec::after{content:"";position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(47,107,255,.18),transparent 70%);top:-200px;left:-120px;pointer-events:none}
.map-sec .wrap{position:relative}
.map-head{display:flex;flex-direction:column;align-items:flex-start;gap:18px;padding-bottom:24px}
.map-head .left{display:flex;flex-direction:column;gap:14px;align-items:flex-start;max-width:880px}
.map-head .left .eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:2.4px;color:#fff;background:linear-gradient(135deg,rgba(43,179,127,.38) 0%,rgba(15,122,78,.30) 100%);border:1px solid rgba(127,232,188,.55);text-transform:uppercase;box-shadow:0 6px 22px -10px rgba(43,179,127,.55),inset 0 1px 0 rgba(255,255,255,.15)}
.map-head .left .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:#1E8F60;box-shadow:0 0 12px #2BB37F,0 0 4px #2BB37F}
.map-head .map-intro{font-size:16px;color:rgba(255,255,255,.88);line-height:1.65;margin:0;font-weight:400}
.map-head .map-intro b{color:#fff;font-weight:600}
.map-stage{position:relative;margin:8px auto 0;padding:24px 28px;width:100%;display:flex;justify-content:center;overflow:visible;background:rgba(127,168,255,.08);border:1px solid rgba(127,168,255,.22);border-radius:24px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 16px 48px -24px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.08)}
.map-stage svg.map-route,.map-stage img{width:100%;height:auto;display:block;max-width:1040px;max-height:460px;object-fit:contain;object-position:center top}
svg.map-route{position:absolute;inset:24px 28px auto;width:calc(100% - 56px);height:calc(100% - 48px);cursor:pointer;pointer-events:auto}
svg.map-route #routePath{transition:stroke .4s,stroke-width .4s}
svg.map-route.lit #routePath{stroke:#2BB37F;stroke-width:3.2;filter:drop-shadow(0 0 8px rgba(43,179,127,.95))}
svg.map-route.lit #routeGlow{stroke:rgba(43,179,127,.55)}
.map-tip{position:absolute;top:6%;left:50%;transform:translateX(-50%);padding:10px 18px;background:rgba(6,26,63,.9);border:1px solid rgba(127,232,188,.5);border-radius:12px;color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.5px;box-shadow:0 10px 30px -8px rgba(0,0,0,.6);z-index:5;white-space:nowrap}
.map-tip em{font-style:normal;color:#7FE8BC}
.map-pin{position:absolute;display:flex;align-items:center;gap:10px;padding:12px 18px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.30);border-radius:16px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 10px 36px -16px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.15);z-index:2;animation:pinFloat 4s ease-in-out infinite}
.map-pin .pin-dot{width:10px;height:10px;border-radius:50%;flex:0 0 auto;box-shadow:0 0 14px currentColor,0 0 4px currentColor}
.map-pin .pin-label{font-size:11px;font-weight:700;letter-spacing:1.5px;color:#fff;text-transform:uppercase;line-height:1}
.map-pin .pin-sub{font-size:13px;font-weight:600;color:rgba(255,255,255,.90);line-height:1.3}
.map-pin .pin-sub em{font-style:normal;color:#7FE8BC}
.map-pin.hkg{top:38%;right:14%;animation-delay:0s}
.map-pin.hkg .pin-dot{background:#2BB37F;color:#2BB37F}
.map-pin.dfw{top:36%;left:22%;animation-delay:1.5s}
.map-pin.dfw .pin-dot{background:#2F6BFF;color:#2F6BFF}
.map-pin.lit{box-shadow:0 0 0 2px rgba(43,179,127,.65),0 10px 36px -16px rgba(0,0,0,.5)}
@keyframes pinFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media(max-width:720px){.map-pin{display:none}}

.map-cities{border-top:1px solid rgba(127,168,255,.18);display:grid;grid-template-columns:1fr 1fr;margin-top:0}
.city-block{display:flex;align-items:flex-start;gap:18px;padding:16px 24px 18px;border-bottom:1px solid rgba(127,168,255,.14)}
.city-block:last-child{border-bottom:0}
.city-block .code{font-size:22px;font-weight:800;color:#2F6BFF;letter-spacing:1.5px;line-height:1;flex:0 0 auto;margin-top:2px}
.city-block .meta{font-size:12.5px;color:rgba(255,255,255,.75);line-height:1.55}
.city-block .meta b{display:block;color:#fff;font-size:13.5px;font-weight:700;margin-bottom:3px}
.city-block .meta b em{font-style:normal;color:#7FE8BC;font-weight:600}

/* ============ Vision 愿景 banner = 行动号召 ============ */
.vision-sec{position:relative;height:420px;overflow:hidden;background:linear-gradient(135deg,#082E6E 0%,#0A3D91 50%,#1D56D6 100%)}
.vision-sec::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,46,110,.50) 0%,rgba(10,61,145,.20) 50%,rgba(29,86,214,0) 100%);pointer-events:none}
.vision-sec::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;right:-60px;top:50%;transform:translateY(-50%);background:radial-gradient(circle,rgba(127,168,255,.22),transparent 70%);pointer-events:none}
.vision-sec .wrap{position:relative;height:100%;display:flex;align-items:center}
.vision-grid{display:grid;grid-template-columns:1fr 1.8fr 1fr;align-items:center;gap:36px;width:100%}
.v-eyebrow .v-cap{display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:2.4px;color:#CFE0FF;background:linear-gradient(135deg,rgba(47,107,255,.32) 0%,rgba(127,168,255,.20) 100%);border:1px solid rgba(127,168,255,.42);text-transform:uppercase;box-shadow:0 6px 22px -10px rgba(47,107,255,.6),inset 0 1px 0 rgba(255,255,255,.18)}
.v-eyebrow .v-cap i{width:8px;height:8px;border-radius:50%;background:#7FA8FF;box-shadow:0 0 12px #7FA8FF,0 0 4px #7FA8FF}
.v-body h2{font-size:42px;font-weight:800;color:#fff;line-height:1.16;letter-spacing:-.8px;margin:0 0 14px}
.v-body h2 em{font-style:normal;color:#7FA8FF}
.v-body p{font-size:15px;color:rgba(255,255,255,.85);line-height:1.6;margin:0;max-width:600px}
.v-cta{text-align:right}
.v-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;background:linear-gradient(135deg,#2F6BFF 0%,#0A3D91 100%);color:#fff;font-size:14.5px;font-weight:700;letter-spacing:.5px;text-decoration:none;box-shadow:0 10px 30px -8px rgba(47,107,255,.55),inset 0 1px 0 rgba(255,255,255,.22);transition:all .3s ease;border:0;cursor:pointer}
.v-btn:hover{transform:translateY(-2px);box-shadow:0 16px 40px -10px rgba(47,107,255,.75),inset 0 1px 0 rgba(255,255,255,.28);background:linear-gradient(135deg,#4D82FF 0%,#0F4DB0 100%)}
.v-btn .arrow{font-size:16px;line-height:1;display:inline-block;transform:translateY(-1px);transition:transform .3s ease;font-weight:600}
.v-btn:hover .arrow{transform:translate(2px,-2px)}

/* ============ Footer ============ */
footer{position:relative;overflow:hidden;color:rgba(255,255,255,.78);padding:64px 0 0;background:linear-gradient(135deg,#061A3F 0%,#082657 30%,#0A3D91 65%,#1D56D6 100%)}
footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(127,168,255,.12) 1px,transparent 1px);background-size:28px 28px;mask-image:radial-gradient(900px 540px at 50% 0%,#000,transparent 75%);pointer-events:none}
footer::after{content:"";position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(47,107,255,.32),transparent 70%);top:-180px;right:-160px;pointer-events:none}
footer>.wrap{position:relative}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:44px;padding-bottom:48px}
.f-brand .logo{color:#fff;margin-bottom:16px}
.f-brand .logo .cn-sub{color:rgba(255,255,255,.6);font-size:13px;font-weight:500;margin-left:8px}
.f-brand p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.62);max-width:300px}
footer h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:16px;letter-spacing:.5px}
footer ul{list-style:none;display:grid;gap:10px;font-size:13.5px}
footer ul a{color:rgba(255,255,255,.64);transition:.2s}
footer ul a:hover{color:#fff}
.f-contact li{color:rgba(255,255,255,.64);display:flex;gap:9px;align-items:flex-start;line-height:1.6}
.f-contact li b{color:rgba(255,255,255,.85);font-weight:600}
.f-cert{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.f-cert span{padding:5px 12px;border-radius:999px;border:1px solid rgba(127,168,255,.3);color:#A9C6FF;font-size:11.5px;font-weight:600;letter-spacing:.5px}
.f-bottom{border-top:1px solid rgba(127,168,255,.22);padding:20px 0;display:flex;justify-content:space-between;gap:16px;font-size:12.5px;color:rgba(255,255,255,.55);flex-wrap:wrap}

/* ============ 视频弹窗 ============ */
.video-modal{position:fixed;inset:0;z-index:999;display:none;align-items:center;justify-content:center;background:rgba(4,14,38,.82);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.video-modal.open{display:flex}
.video-box{position:relative;width:min(920px,92vw);background:#061630;border-radius:20px;padding:16px;box-shadow:0 40px 120px -20px rgba(0,0,0,.8);border:1px solid rgba(127,168,255,.25)}
.video-box video{width:100%;border-radius:12px;display:block;background:#000}
.video-box video.hide{display:none}
.video-empty{padding:60px 20px;text-align:center;color:#A9C6FF}
.video-empty .small{font-size:13px;color:rgba(169,198,255,.6);margin-top:8px}
.video-close{position:absolute;top:-16px;right:-16px;width:40px;height:40px;border-radius:50%;border:0;background:#fff;color:var(--blue);font-size:16px;font-weight:700;cursor:pointer;box-shadow:0 10px 26px rgba(0,0,0,.4);transition:.2s}
.video-close:hover{transform:scale(1.08);background:#2BB37F;color:#fff}

/* ============ 响应式 ============ */
@media(max-width:1080px){
  .stats-grid{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
  .map-cities{grid-template-columns:1fr}
  .hero-social{left:14px}
  .s-card{grid-template-columns:1fr}
  .s-card-img{min-height:280px;order:-1}
  .s-card-body{padding:32px 28px}
}
@media(max-width:720px){
  .nav-links{display:none}
  .stat-cards{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .hero{min-height:440px}
  .hero-inner{padding:40px 24px}
  .hero h1{font-size:38px}
  .hero .lead{font-size:15px}
  .hero-social{position:static;transform:none;flex-direction:row;justify-content:center;padding:14px 0 0}
  .hero-social::after{display:none}
  .s-card-body{padding:26px 22px}
  .s-card-body h3{font-size:30px}
  .vision-sec{height:auto;padding:60px 0}
  .vision-grid{grid-template-columns:1fr;gap:22px;align-items:flex-start}
  .v-cta{text-align:left}
  .v-body h2{font-size:26px}
  .v-btn{padding:12px 20px;font-size:13px}
  .v-eyebrow .v-cap{font-size:11px;padding:7px 14px;letter-spacing:2px}
}

/* ============================================================
   服务页 Services
   ============================================================ */

/* 浅色/深底下的 eyebrow 变体 */
body[data-page="services"] .hero{min-height:460px}
body[data-page="services"] .hero-inner{padding:48px 32px}
.eyebrow-light{color:#fff;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.42);backdrop-filter:blur(6px)}
.eyebrow-light::before{background:#fff;box-shadow:0 0 10px rgba(255,255,255,.95)}
.eyebrow-dark{color:#CFE0FF;background:linear-gradient(135deg,rgba(47,107,255,.28),rgba(127,168,255,.16));border:1px solid rgba(127,168,255,.42)}
.eyebrow-dark::before{background:#7FA8FF;box-shadow:0 0 10px #7FA8FF}
.grad-text-light{background:linear-gradient(120deg,#fff 0%,#CFF7E5 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-sub-light{color:rgba(255,255,255,.85)}

/* ============ PART 1 · 收购清单（绿色面板） ============ */
.buy-list{position:relative;padding:84px 0 96px;background:var(--grad-eco);overflow:hidden}
.buy-list::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);background-size:28px 28px;mask-image:radial-gradient(900px 540px at 50% 50%,#000 30%,transparent 78%);pointer-events:none}
.buy-list::after{content:"";position:absolute;width:560px;height:560px;border-radius:50%;top:-180px;right:-160px;background:radial-gradient(circle,rgba(127,232,188,.30),transparent 70%);pointer-events:none}
.buy-list>.wrap{position:relative}
.bl-head{text-align:center;max-width:780px;margin:0 auto 38px}
.bl-head .sec-title{color:#fff;margin-top:12px}
.bl-head .sec-sub{margin:14px auto 0;font-size:16px}

.bl-group{margin-top:32px}
.bl-group-head{display:flex;align-items:center;gap:14px;margin:0 0 18px;color:#fff}
.bl-group-head .gno{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.42);backdrop-filter:blur(8px);font-size:16px;font-weight:800;letter-spacing:.5px}
.bl-group-head .gtitle{font-size:18px;font-weight:700;letter-spacing:.4px}
.bl-group-head .gtitle em{font-style:normal;color:#E5FBEF;font-weight:600;font-size:13px;margin-left:8px;letter-spacing:1.6px;text-transform:uppercase}
.bl-group-head .gline{flex:1;height:1px;background:linear-gradient(90deg,rgba(255,255,255,.55),rgba(255,255,255,0))}

.bl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.bl-tile{position:relative;display:flex;flex-direction:column;align-items:center;gap:10px;padding:22px 12px 18px;background:rgba(255,255,255,.96);border:1px solid rgba(255,255,255,.95);border-radius:18px;box-shadow:0 10px 28px -16px rgba(10,61,145,.30);transition:.28s cubic-bezier(.2,.7,.3,1);cursor:default}
.bl-tile:hover{transform:translateY(-4px);box-shadow:0 18px 40px -14px rgba(10,61,145,.40);background:#fff}
.bl-tile:hover .bl-icon{transform:scale(1.08)}
.bl-icon{width:88px;height:88px;border-radius:16px;background:linear-gradient(135deg,#EAF1FF 0%,#DCEBFF 60%,#CFEEFE 100%);border:1.5px solid rgba(10,61,145,.08);display:flex;align-items:center;justify-content:center;transition:transform .28s;overflow:hidden}
.bl-icon svg{width:46px;height:46px;color:var(--blue);stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.bl-icon img{width:60px;height:60px;object-fit:contain}
.bl-name{font-size:14.5px;font-weight:700;color:var(--ink);letter-spacing:.2px;line-height:1.2;text-align:center}
.bl-name-en{font-size:11px;color:var(--ink-2);font-weight:600;letter-spacing:1.4px;text-transform:uppercase;line-height:1.2;margin-top:2px;text-align:center}

/* 不同类别 icon 配色变奏 */
.bl-group[data-c="A"] .bl-icon{background:linear-gradient(135deg,#EAF1FF 0%,#DCEBFF 60%,#CFEEFE 100%);border-color:rgba(10,61,145,.10)}
.bl-group[data-c="A"] .bl-icon svg{color:var(--blue)}
.bl-group[data-c="B"] .bl-icon{background:linear-gradient(135deg,#E5FBEF 0%,#CFF7E5 100%);border-color:rgba(0,168,104,.20)}
.bl-group[data-c="B"] .bl-icon svg{color:#0A7A4E}
.bl-group[data-c="C"] .bl-icon{background:linear-gradient(135deg,#FFF6E5 0%,#FFE9C7 100%);border-color:rgba(184,124,21,.20)}
.bl-group[data-c="C"] .bl-icon svg{color:#B47C15}

/* ============ PART 2 · 服务优势（6 卡轮播） ============ */
.advantages{position:relative;padding:84px 0 92px;background:#F4F6FA}
.advantages::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(10,61,145,.16),transparent)}
.adv-head{text-align:center;max-width:780px;margin:0 auto 38px}
.adv-head .sec-title{margin-top:12px}
.adv-head .sec-sub{margin:14px auto 0;font-size:16px}

.carousel{position:relative;overflow:hidden;padding:0 4px}
.carousel-track{display:flex;flex-wrap:nowrap;transition:transform .55s cubic-bezier(.2,.7,.3,1)}
.carousel-track .adv-card{flex:0 0 calc((100%/3) - 16px);margin-right:24px;min-height:340px}
.carousel-track .adv-card:last-child{margin-right:0}
.adv-card{background:#fff;border-radius:22px;padding:34px 30px 30px;border:1px solid rgba(10,61,145,.08);box-shadow:0 12px 36px -18px rgba(10,61,145,.22);display:flex;flex-direction:column;gap:18px;transition:.28s cubic-bezier(.2,.7,.3,1)}
.adv-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px -16px rgba(10,61,145,.30);border-color:rgba(0,168,104,.45)}
.adv-icon{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,#E5FBEF 0%,#7FE8BC 100%);border:1.5px solid rgba(0,168,104,.32);display:flex;align-items:center;justify-content:center;color:#0A7A4E;box-shadow:0 8px 24px -10px rgba(0,168,104,.45),inset 0 1px 0 rgba(255,255,255,.6);overflow:hidden}
.adv-icon svg{width:32px;height:32px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.adv-icon img{width:40px;height:40px;object-fit:contain}
.adv-card h3{font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.3px;line-height:1.2}
.adv-card h3 small{display:block;font-size:12.5px;font-weight:600;color:var(--eco-deep);letter-spacing:1.8px;text-transform:uppercase;margin-top:4px}
.adv-card p{font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.adv-card .adv-link{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;background:var(--grad-blue);color:#fff;font-size:13.5px;font-weight:700;margin-top:auto;align-self:flex-start;transition:.25s;box-shadow:0 8px 20px -8px rgba(47,107,255,.45)}
.adv-card .adv-link:hover{transform:translateY(-2px);box-shadow:0 12px 28px -6px rgba(47,107,255,.55)}
.adv-card .adv-link svg{width:13px;height:13px;transition:transform .2s}
.adv-card .adv-link:hover svg{transform:translateX(3px)}

.carousel-nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid rgba(10,61,145,.14);color:var(--blue);font-size:18px;cursor:pointer;box-shadow:0 10px 26px -12px rgba(10,61,145,.30);display:flex;align-items:center;justify-content:center;transition:.22s;z-index:3}
.carousel-nav:hover{background:var(--grad-blue);color:#fff;border-color:transparent;transform:translateY(-50%) scale(1.06)}
.carousel-nav.prev{left:-22px}
.carousel-nav.next{right:-22px}
.carousel-pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:30px}
.carousel-pager .dot{width:10px;height:10px;border-radius:50%;background:rgba(10,61,145,.18);cursor:pointer;transition:.22s}
.carousel-pager .dot.on{width:30px;border-radius:999px;background:var(--grad-teal)}
.carousel-pager .count{margin-left:14px;font-size:12.5px;color:var(--ink-2);font-weight:700;letter-spacing:1.2px}
.carousel-pager .count b{color:var(--blue);font-weight:800;margin-right:2px}

/* ============ PART 3 · ITAD 六步循环流程 ============ */
.itad-cycle{position:relative;padding:90px 0 100px;background:linear-gradient(155deg,#061A3F 0%,#082657 55%,#0A3D91 100%);overflow:hidden}
.itad-cycle::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(127,168,255,.13) 1px,transparent 1px);background-size:30px 30px;mask-image:radial-gradient(900px 540px at 50% 50%,#000 25%,transparent 78%);pointer-events:none}
.itad-cycle::after{content:"";position:absolute;width:620px;height:620px;border-radius:50%;top:-260px;right:-160px;background:radial-gradient(circle,rgba(47,107,255,.20),transparent 70%);pointer-events:none}
.itad-cycle>.wrap{position:relative}
.ic-head{text-align:center;max-width:780px;margin:0 auto 48px}
.ic-head .sec-title{color:#fff;margin-top:12px}
.ic-head .sec-title em{font-style:normal}
.ic-head .sec-sub{margin:14px auto 0;font-size:16px}

.flow{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flow-card{position:relative;background:rgba(127,168,255,.10);border:1px solid rgba(127,168,255,.26);border-radius:20px;padding:26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 14px 40px -16px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.12);transition:.28s;color:#fff}
.flow-card:hover{transform:translateY(-4px);border-color:rgba(127,232,188,.55);background:rgba(127,168,255,.16)}
.flow-card .fno{font-size:13px;font-weight:800;letter-spacing:2.4px;color:#7FA8FF;text-transform:uppercase;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.flow-card .fno::before{content:"";display:inline-block;width:36px;height:2px;background:linear-gradient(90deg,#2F6BFF,#7FE8BC);border-radius:2px}
.flow-card h4{font-size:22px;font-weight:800;letter-spacing:-.3px;margin-bottom:6px}
.flow-card ul{list-style:none;margin-top:14px;display:grid;gap:7px;font-size:13px;color:rgba(255,255,255,.85)}
.flow-card ul li{padding-left:18px;position:relative;line-height:1.5}
.flow-card ul li::before{content:"";position:absolute;left:0;top:7px;width:7px;height:7px;border-radius:50%;background:#7FE8BC;box-shadow:0 0 8px #2BB37F}

.branches{margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.branch-card{position:relative;background:rgba(255,255,255,.06);border:1px dashed rgba(127,232,188,.45);border-radius:18px;padding:22px 24px;color:#fff;backdrop-filter:blur(10px)}
.branch-card .bhead{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.branch-card .bhead .bdot{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#2F6BFF 0%,#2BB37F 100%);display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:800;box-shadow:0 8px 22px -8px rgba(43,179,127,.55),inset 0 1px 0 rgba(255,255,255,.32)}
.branch-card .bhead h5{font-size:17px;font-weight:800;letter-spacing:.2px}
.branch-card .bhead h5 small{display:block;font-size:11px;color:#7FE8BC;font-weight:600;letter-spacing:1.6px;margin-top:2px;text-transform:uppercase}
.branch-card p{font-size:13px;color:rgba(255,255,255,.75);line-height:1.65}

.flow-foot{margin-top:34px;display:flex;align-items:center;justify-content:center;gap:14px;color:rgba(255,255,255,.7);font-size:13.5px;font-weight:600;letter-spacing:1.2px;text-transform:uppercase}
.flow-foot .flow-dot{width:7px;height:7px;border-radius:50%;background:#7FE8BC;box-shadow:0 0 10px #2BB37F}
.flow-foot .cycle-arrow{font-size:18px;color:#7FE8BC;font-weight:700}
.flow-foot .line-sep{flex:1;max-width:120px;height:1px;background:linear-gradient(90deg,rgba(127,232,188,0),rgba(127,232,188,.65),rgba(127,232,188,0))}

/* ============ 服务页响应式 ============ */
@media(max-width:1080px){
  .bl-grid{grid-template-columns:repeat(3,1fr)}
  .carousel-track .adv-card{flex:0 0 calc(50% - 12px)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .branches{grid-template-columns:1fr}
  .carousel-nav.prev{left:-12px}
  .carousel-nav.next{right:-12px}
}
@media(max-width:720px){
  .bl-grid{grid-template-columns:repeat(2,1fr)}
  .carousel-track .adv-card{flex:0 0 100%;margin-right:0}
  .flow{grid-template-columns:1fr}
  .carousel-nav{display:none}
  .buy-list{padding:60px 0 72px}
  .advantages{padding:60px 0 72px}
  .itad-cycle{padding:60px 0 72px}
}

/* ============================================================
   联系页（contact.html）—— 对应 0903官网UI/contact.html
   ============================================================ */
.contact-hero{min-height:460px}
.contact-hero .scroll-cue{align-self:center;margin-top:14px;display:inline-flex;flex-direction:column;align-items:center;gap:6px;color:rgba(255,255,255,.78);font-size:12px;letter-spacing:1.6px;text-transform:uppercase;font-weight:600}
.contact-hero .scroll-cue .arrow{width:22px;height:22px;border-right:2px solid #7FE8BC;border-bottom:2px solid #7FE8BC;transform:rotate(45deg);animation:bounceC 1.6s ease-in-out infinite}
@keyframes bounceC{0%,100%{transform:rotate(45deg) translate(0,0)}50%{transform:rotate(45deg) translate(4px,4px)}}

/* Part 2 · 关于我们（左右结构） */
.about-sec{position:relative;padding:56px 0 48px;background:linear-gradient(180deg,#FAFBFE 0%,#fff 100%);overflow:hidden}
.about-sec::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;top:-180px;left:-180px;background:radial-gradient(circle,rgba(47,107,255,.08),transparent 70%);pointer-events:none}
.about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center;position:relative}
.about-text h2{font-size:clamp(28px,3.2vw,40px);font-weight:800;line-height:1.18;letter-spacing:-.5px;color:var(--ink);margin:14px 0 18px}
.about-text h2 em{font-style:normal;background:var(--grad-teal);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-text .lead{font-size:16.5px;color:var(--ink-2);line-height:1.8;max-width:520px}
.about-stats{margin-top:32px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.about-stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px;box-shadow:var(--shadow-sm);transition:.25s}
.about-stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(0,168,104,.32)}
.about-stat .num{font-size:28px;font-weight:800;letter-spacing:-.5px;background:var(--grad-eco);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.about-stat .num span{font-size:14px}
.about-stat .lbl{font-size:12px;font-weight:700;color:var(--ink-2);letter-spacing:1.4px;text-transform:uppercase;margin-top:6px}
.about-visual{position:relative;height:480px}
.about-visual .glass{position:absolute;inset:0;border-radius:24px;background:linear-gradient(155deg,#061A3F 0%,#082657 55%,#0A3D91 100%);overflow:hidden;box-shadow:0 24px 60px -22px rgba(10,61,145,.55)}
.about-visual .glass::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(127,168,255,.18) 1px,transparent 1px);background-size:30px 30px;mask-image:radial-gradient(circle at 50% 50%,#000 30%,transparent 78%)}
.about-visual .glass::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;top:-200px;right:-160px;background:radial-gradient(circle,rgba(127,232,188,.22),transparent 70%);pointer-events:none}
.about-visual .glass-inner{position:absolute;inset:0;padding:38px 36px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;z-index:2}
.about-visual .glass-inner .logo-mark{width:48px;height:48px;border-radius:12px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:0 8px 18px rgba(0,0,0,.30)}
.about-visual .glass-inner .logo-mark img{width:42px;height:42px;object-fit:contain}
.about-visual .glass-inner .glass-title{font-size:22px;font-weight:800;letter-spacing:-.3px;line-height:1.25;margin-top:18px;max-width:340px}
.about-visual .glass-inner .glass-title em{font-style:normal;background:linear-gradient(120deg,#7FA8FF 0%,#7FE8BC 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-visual .glass-inner .glass-list{list-style:none;display:grid;gap:10px;margin-top:14px}
.about-visual .glass-inner .glass-list li{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:rgba(255,255,255,.88);line-height:1.55}
.about-visual .glass-inner .glass-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:#7FE8BC;box-shadow:0 0 10px #7FE8BC;margin-top:6px}
.about-visual .glass-inner .glass-foot{display:flex;gap:22px;align-items:flex-end;justify-content:space-between;border-top:1px solid rgba(127,168,255,.22);padding-top:16px}
.about-visual .glass-inner .glass-foot .hub{display:flex;flex-direction:column;gap:2px}
.about-visual .glass-inner .glass-foot .hub .lbl{font-size:10.5px;color:rgba(255,255,255,.62);font-weight:700;letter-spacing:1.6px;text-transform:uppercase}
.about-visual .glass-inner .glass-foot .hub .val{font-size:15px;font-weight:800;color:#fff;letter-spacing:.4px}
.about-visual .glass-inner .glass-foot .hub .val small{display:block;font-size:11.5px;color:rgba(255,255,255,.62);font-weight:500;letter-spacing:.2px;margin-top:1px}

/* Part 3 · 联系信息卡（浅绿） */
.contact-cards-sec{position:relative;padding:24px 0 32px;background:#fff}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cc-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 28px;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;display:flex;flex-direction:column;gap:14px;min-height:200px}
/* 绿色渐变底作为独立层，hover 时淡入（避免 background 渐变无法平滑过渡的瞬切） */
.cc-card::before{content:"";position:absolute;inset:0;border-radius:inherit;background:var(--grad-eco);opacity:0;transition:opacity .35s ease;z-index:-1;pointer-events:none}
.cc-card:hover{transform:translateY(-5px);box-shadow:0 18px 42px -16px rgba(0,168,104,.5);border-color:transparent}
.cc-card:hover::before{opacity:1}
.cc-card .ic{width:62px;height:62px;border-radius:18px;background:linear-gradient(135deg,#E5FBEF 0%,#7FE8BC 100%);border:1.5px solid rgba(0,168,104,.32);display:flex;align-items:center;justify-content:center;color:#0A7A4E;box-shadow:0 8px 22px -10px rgba(0,168,104,.45),inset 0 1px 0 rgba(255,255,255,.6);transition:background .3s ease,border-color .3s ease,color .3s ease,box-shadow .3s ease}
.cc-card .ic svg{width:28px;height:28px;transition:stroke .3s ease}
.cc-card h3{font-size:21px;font-weight:800;color:var(--ink);letter-spacing:-.3px;line-height:1.2;transition:color .3s ease}
.cc-card .meta{font-size:14.5px;color:var(--ink-2);line-height:1.7;transition:color .3s ease}
.cc-card .meta b{color:var(--ink);font-weight:700;display:block;margin-bottom:2px;font-size:15.5px;transition:color .3s ease}
.cc-card .meta small{display:block;color:var(--ink-2);font-weight:500;margin-top:2px;transition:color .3s ease}
.cc-card:hover .ic{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.45);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.25)}
.cc-card:hover .ic svg{stroke:#fff}
.cc-card:hover h3{color:#fff}
.cc-card:hover .meta{color:rgba(255,255,255,.92)}
.cc-card:hover .meta b{color:#fff}
.cc-card:hover .meta small{color:rgba(255,255,255,.78)}

/* Part 4 · 地图 + 留言表单 */
.msg-sec{position:relative;padding:48px 0 72px;background:linear-gradient(180deg,#fff 0%,#F4F6FA 100%);overflow:hidden}
.msg-sec::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;bottom:-220px;right:-160px;background:radial-gradient(circle,rgba(0,168,104,.10),transparent 70%);pointer-events:none}
.msg-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:24px;align-items:stretch;position:relative}
.msg-map{position:relative;border-radius:16px;overflow:hidden;min-height:420px;background:#EAF1FF}
.msg-map iframe{position:absolute;inset:0;width:100%;height:100%;border:0;filter:saturate(.92) hue-rotate(-6deg)}
.msg-map .map-pin{position:absolute;top:14px;left:14px;z-index:2;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-radius:12px;padding:11px 14px;box-shadow:0 8px 20px -8px rgba(10,61,145,.28);display:flex;align-items:center;gap:11px;max-width:300px}
.msg-map .map-pin .dot{width:32px;height:32px;border-radius:50%;background:var(--grad-eco);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 0 0 4px rgba(0,168,104,.18)}
.msg-map .map-pin .dot svg{width:16px;height:16px}
.msg-map .map-pin .ttl{font-size:13px;font-weight:800;color:var(--ink);line-height:1.25}
.msg-map .map-pin .sub{font-size:11.5px;color:var(--ink-2);font-weight:600;letter-spacing:.2px;margin-top:2px}
.msg-form{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 30px 26px}
.msg-form .eyebrow{color:var(--eco-deep);background:linear-gradient(120deg,rgba(0,168,104,.10),rgba(127,232,188,.18));border:1px solid rgba(0,168,104,.22)}
.msg-form .eyebrow::before{background:var(--eco);box-shadow:0 0 10px var(--eco)}
.msg-form h2{font-size:clamp(26px,2.6vw,32px);font-weight:800;line-height:1.18;letter-spacing:-.4px;color:var(--ink);margin:12px 0 6px}
.msg-form h2 em{font-style:normal;background:var(--grad-eco);-webkit-background-clip:text;background-clip:text;color:transparent}
.msg-form .lead{color:var(--ink-2);font-size:13.5px;margin-bottom:18px;max-width:420px;line-height:1.55}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{display:flex;flex-direction:column;gap:7px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:12px;font-weight:700;color:var(--ink-2);letter-spacing:1.2px;text-transform:uppercase}
.form-field label b{color:var(--eco-deep)}
.form-field input,.form-field select,.form-field textarea{border:1.5px solid var(--line);border-radius:12px;padding:13px 16px;font:inherit;color:var(--ink);background:#FAFBFE;outline:none;transition:.2s}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--eco);box-shadow:0 0 0 4px rgba(0,168,104,.16);background:#fff}
.form-field textarea{min-height:140px;resize:vertical;line-height:1.6}
.form-foot{display:flex;align-items:center;justify-content:space-between;margin-top:22px;gap:18px;flex-wrap:wrap}
.form-foot .hint{font-size:12.5px;color:var(--ink-2);max-width:280px;line-height:1.55}
.form-foot .hint b{color:var(--eco-deep);font-weight:700}
.form-foot .btn-eco{padding:14px 32px;font-size:14.5px;letter-spacing:.4px}
.form-foot .btn-eco svg{width:14px;height:14px;transition:transform .2s}
.form-foot .btn-eco:hover svg{transform:translateX(3px)}
.msg-success{display:none;margin-top:14px;padding:12px 16px;border-radius:12px;background:#E5FBEF;border:1px solid rgba(0,168,104,.30);color:#0A7A4E;font-size:13.5px;font-weight:600;align-items:center;gap:8px}
.msg-success.show{display:flex}
.msg-success svg{width:16px;height:16px}

/* 联系页响应式 */
@media(max-width:1080px){
  .about-grid{grid-template-columns:1fr;gap:42px}
  .about-visual{height:420px;max-width:560px}
  .contact-cards{grid-template-columns:1fr;gap:16px}
  .msg-grid{grid-template-columns:1fr;gap:24px}
  .msg-map{min-height:380px}
}
@media(max-width:720px){
  .about-stats{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .msg-form{padding:30px 24px}
  .about-visual{height:380px}
}