/* ============================================================
   易采购新版官网 — 公共样式（二级页共用）
   主色：深海军蓝 #0A1F44 / 品牌橙 #FF6A00
   ============================================================ */
:root{
  --navy:#0A1F44;
  --navy-2:#12295C;
  --navy-3:#1B3A75;
  --orange:#FF6A00;
  --orange-2:#FF8A3D;
  --ink:#1B2A4A;
  --gray:#5A6B8C;
  --line:#E5EAF3;
  --bg:#F5F7FB;
  --white:#fff;
  --radius:14px;
  --shadow:0 10px 30px rgba(10,31,68,.08);
  --shadow-lg:0 20px 50px rgba(10,31,68,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{scroll-margin-top:80px}

/* ---------- 通用模块标题 ---------- */
.sec-head{text-align:center;max-width:760px;margin:0 auto 56px}
.sec-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--orange);text-transform:uppercase;margin-bottom:14px}
.sec-tag::before,.sec-tag::after{content:"";width:24px;height:2px;background:var(--orange);border-radius:2px;opacity:.6}
.sec-title{font-size:34px;font-weight:700;color:var(--navy);line-height:1.3;margin-bottom:14px}
.sec-desc{font-size:16px;color:var(--gray)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 32px;border-radius:999px;font-size:16px;font-weight:600;cursor:pointer;border:none;transition:all .25s}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#fff;box-shadow:0 8px 20px rgba(255,106,0,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,106,0,.45)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}

/* ---------- 顶部导航 ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:100;transition:all .3s;background:transparent}
.header .container{display:flex;align-items:center;height:72px;gap:32px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-img{display:inline-flex;align-items:center;justify-content:center;background:#fff;border-radius:10px;padding:5px 10px;box-shadow:0 2px 10px rgba(10,31,68,.18)}
.logo-img img{height:30px;width:auto;display:block}
.logo-txt{color:#fff;line-height:1.2}
.logo-txt b{font-size:20px;letter-spacing:1px;display:block}
.logo-txt span{font-size:11px;opacity:.75}
.nav{display:flex;gap:4px;margin-left:auto}
.nav>li{position:relative}
.nav>li>a{display:flex;align-items:center;height:72px;padding:0 16px;font-size:15px;color:rgba(255,255,255,.9);transition:color .2s}
.nav>li>a:hover,.nav>li>a.active{color:#fff}
.nav .sub{position:absolute;top:72px;left:50%;transform:translate(-50%,10px);min-width:170px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transition:all .25s}
.nav>li:hover .sub{opacity:1;visibility:visible;transform:translate(-50%,0)}
.nav .sub a{display:block;padding:10px 16px;border-radius:8px;font-size:14px;color:var(--ink);text-align:center}
.nav .sub a:hover{background:var(--bg);color:var(--orange)}
/* 分组下拉（方案）：总览大标签置顶 + 行业/品类/规模依次向下，组内一行 4 个 */
.nav .sub.sub-mega{display:block;padding:16px 18px;min-width:540px;max-width:640px}
.nav .sub a.mega-overview{display:block;text-align:center;font-size:15px;font-weight:700;letter-spacing:2px;padding:12px;margin-bottom:2px;background:linear-gradient(135deg,#0A1F44,#1B3A75);color:#fff!important;border-radius:8px}
.mega-overview:hover{background:var(--orange)!important;color:#fff!important}
.mega-group{margin-top:12px}
.mega-title{font-size:13px;font-weight:700;color:var(--orange);letter-spacing:2px;padding:0 2px 6px;text-align:left;border-bottom:1px solid var(--line);margin-bottom:8px;cursor:default}
.mega-links{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.nav .sub .mega-links a{display:block;padding:8px 6px;text-align:center;font-size:13px;color:var(--ink);border:1px solid var(--line);border-radius:8px;white-space:nowrap}
.header-tel{display:flex;align-items:center;gap:8px;color:#fff;font-size:16px;font-weight:600;flex-shrink:0}
.header-cta{height:38px;padding:0 20px;font-size:14px;flex-shrink:0}
.header.scrolled{background:#fff;box-shadow:0 4px 20px rgba(10,31,68,.08)}
.header.scrolled .nav>li>a{color:var(--ink)}
.header.scrolled .nav>li>a:hover,.header.scrolled .nav>li>a.active{color:var(--orange)}
.header.scrolled .logo-txt{color:var(--navy)}
.header.scrolled .header-tel{color:var(--navy)}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;background:radial-gradient(1000px 500px at 85% -10%,var(--navy-3),transparent),linear-gradient(160deg,var(--navy) 0%,#081831 100%);color:#fff;padding:158px 0 84px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(800px 500px at 75% 10%,#000,transparent)}
.page-hero .container{position:relative;z-index:1}
.page-hero::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;filter:blur(110px);background:radial-gradient(circle,rgba(255,106,0,.38),transparent 70%);top:-140px;right:6%;animation:heroDrift 8s ease-in-out infinite;pointer-events:none}
@keyframes heroDrift{
  0%{transform:translate(0,0) scale(1)}
  25%{transform:translate(-130px,70px) scale(1.25)}
  50%{transform:translate(-60px,130px) scale(.95)}
  75%{transform:translate(50px,60px) scale(1.15)}
  100%{transform:translate(0,0) scale(1)}
}
.crumb{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:20px}
.crumb a:hover{color:var(--orange-2)}
.crumb i{font-style:normal;margin:0 8px;opacity:.5}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;background:rgba(255,106,0,.14);border:1px solid rgba(255,106,0,.4);color:#FFB27A;font-size:13px;font-weight:600;margin-bottom:18px}
.page-hero h1{font-size:44px;font-weight:800;line-height:1.25;letter-spacing:1px}
.page-hero h1 em{font-style:normal;background:linear-gradient(120deg,#FFB27A,var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero .hero-sub{margin-top:18px;font-size:16.5px;color:rgba(255,255,255,.72);max-width:680px}
.page-hero .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.page-hero .hero-tags span{display:inline-block;padding:7px 18px;border-radius:999px;font-size:13.5px;font-weight:600;color:#fff;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.38);backdrop-filter:blur(6px);letter-spacing:.5px}
.page-hero .hero-btns{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:flex;gap:48px;margin-top:40px;flex-wrap:wrap}
.hero-stats .hs b{font-size:30px;font-weight:800;color:#fff}
.hero-stats .hs b i{font-style:normal;color:var(--orange-2)}
.hero-stats .hs span{display:block;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 图片占位 ---------- */
.img-ph{border-radius:var(--radius);background:linear-gradient(150deg,#F0F4FB,#E4EBF7);border:1px dashed #B9C8E4;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#8CA0C4;font-size:14px;text-align:center;padding:28px;min-height:280px}
.img-ph .ph-icon{width:52px;height:52px;border-radius:14px;background:rgba(255,106,0,.12);display:flex;align-items:center;justify-content:center;font-size:24px}
.img-ph.dark{background:linear-gradient(150deg,#162C5C,#0D2148);border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.45)}
.img-ph.has-image{padding:0;background:#fff;border-style:solid;overflow:hidden;box-shadow:var(--shadow-lg)}
.img-ph.has-image img{width:100%;height:100%;display:block;object-fit:contain;background:#fff}

/* ---------- 平台介绍（左文右图） ---------- */
.intro{padding:96px 0;background:#fff}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.intro-txt .i-tag{font-size:13px;font-weight:700;color:var(--orange);letter-spacing:2px;margin-bottom:12px}
.intro-txt h2{font-size:30px;color:var(--navy);margin-bottom:18px;line-height:1.35}
.intro-txt p{font-size:15px;color:var(--gray);margin-bottom:14px}
.intro-points{margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.intro-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--navy);background:var(--bg);border-radius:10px;padding:12px 14px}
.intro-points li::before{content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* ---------- 子系统/模块卡片 ---------- */
.sys{padding:96px 0;background:var(--bg)}
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sys-card{background:#fff;border-radius:var(--radius);padding:30px 28px;box-shadow:var(--shadow);transition:all .3s;position:relative;overflow:hidden}
.sys-card::before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--orange),var(--orange-2));transform:scaleY(0);transform-origin:top;transition:transform .3s}
.sys-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.sys-card:hover::before{transform:scaleY(1)}
.sys-num{font-size:13px;font-weight:800;color:var(--orange);letter-spacing:1px;margin-bottom:12px}
.sys-card h4{font-size:18px;color:var(--navy);margin-bottom:10px}
.sys-card p{font-size:13.5px;color:var(--gray);line-height:1.7}

/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag-cloud a{padding:10px 22px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--navy);text-decoration:none;transition:all .25s}
.tag-cloud a:hover{border-color:var(--orange);color:var(--orange);box-shadow:var(--shadow);transform:translateY(-2px)}

/* ---------- 痛点编号列表 ---------- */
.pain{padding:96px 0;background:#fff}
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.pain-item{display:flex;gap:18px;padding:26px 28px;border-radius:var(--radius);background:var(--bg);border:1px solid transparent;transition:all .3s}
.pain-item:hover{background:#fff;border-color:var(--line);box-shadow:var(--shadow)}
.pain-num{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--navy-3));color:#fff;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center}
.pain-item h4{font-size:16.5px;color:var(--navy);margin-bottom:6px}
.pain-item p{font-size:13.5px;color:var(--gray);line-height:1.7}

/* ---------- 特点列表 ---------- */
.feature{padding:96px 0;background:var(--bg)}
.feature-list{max-width:900px;margin:0 auto}
.feature-item{display:flex;gap:22px;padding:28px 32px;background:#fff;border-radius:var(--radius);margin-bottom:16px;box-shadow:var(--shadow);transition:all .3s}
.feature-item:hover{transform:translateX(6px)}
.feature-item .f-ico{flex-shrink:0;width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,#FFF1E5,#FFE0C7);display:flex;align-items:center;justify-content:center;font-size:22px}
.feature-item h4{font-size:16.5px;color:var(--navy);margin-bottom:6px}
.feature-item p{font-size:14px;color:var(--gray)}
.feature-lead{max-width:900px;margin:0 auto 32px;font-size:15.5px;color:var(--gray);background:#fff;border-left:4px solid var(--orange);border-radius:0 var(--radius) var(--radius) 0;padding:22px 28px;box-shadow:var(--shadow)}

/* ---------- 数字价值 ---------- */
.value-band{padding:88px 0;background:linear-gradient(135deg,var(--navy),#0E2A5E);color:#fff;position:relative;overflow:hidden}
.value-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:56px 56px}
.value-band .container{position:relative}
.value-band .sec-title{color:#fff}
.value-band .sec-desc{color:rgba(255,255,255,.65)}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.value-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px 26px;transition:all .3s}
.value-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.value-card b{font-size:40px;font-weight:800;color:var(--orange-2);display:block;line-height:1.1}
.value-card b small{font-size:18px;font-weight:700}
.value-card h4{font-size:16px;margin:10px 0 6px}
.value-card p{font-size:13px;color:rgba(255,255,255,.6)}
/* 三方价值 */
.tri-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tri-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:32px 30px;transition:all .3s}
.tri-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.tri-card h4{font-size:19px;margin-bottom:6px}
.tri-card .tri-sub{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px}
.tri-card ul li{font-size:14px;color:rgba(255,255,255,.85);padding:8px 0 8px 20px;position:relative;border-bottom:1px dashed rgba(255,255,255,.12)}
.tri-card ul li:last-child{border-bottom:none}
.tri-card ul li::before{content:"";position:absolute;left:0;top:16px;width:8px;height:8px;border-radius:2px;background:var(--orange-2)}
.tri-card ul li b{color:var(--orange-2)}

/* ---------- Tab（药丸切换，吸顶可选） ---------- */
.pill-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:44px;flex-wrap:wrap}
.pill-tab{padding:12px 30px;border-radius:999px;font-size:16px;font-weight:600;color:var(--navy);background:var(--bg);cursor:pointer;border:1px solid transparent;transition:all .25s}
.pill-tab:hover{color:var(--orange)}
.pill-tab.active{background:var(--navy);color:#fff;box-shadow:0 8px 20px rgba(10,31,68,.25)}
.tab-panel{display:none;animation:fadeUp .45s}
.tab-panel.active{display:block}

/* ---------- 案例 ---------- */
.case-main{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:36px}
.case-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:16/9}
.case-img img{width:100%;height:100%;object-fit:cover;object-position:top center}
.case-info .c-badge{display:inline-block;font-size:12px;font-weight:700;color:var(--orange);background:rgba(255,106,0,.1);padding:4px 14px;border-radius:999px;margin-bottom:14px}
.case-info h3{font-size:24px;color:var(--navy);margin-bottom:14px;line-height:1.4}
.case-info p{font-size:14.5px;color:var(--gray)}
.logo-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.logo-card{background:#fff;border-radius:18px;border:1px solid var(--line);padding:32px 26px 26px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;text-align:center;transition:all .25s}
.logo-card:hover{border-color:var(--orange);box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.logo-fig{width:100%;height:180px;display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.logo-fig img{max-width:92%;max-height:150px;object-fit:contain;border-radius:8px}
.logo-fig.logo-ph{font-size:15px;color:#8CA0C4}
.logo-info{display:flex;flex-direction:column;align-items:center;width:100%}
.logo-name{font-size:20px;font-weight:700;color:var(--navy);line-height:1.3;margin-bottom:10px}
.logo-intro{font-size:14px;color:var(--gray);line-height:1.7;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px}
.logo-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.logo-tag{font-size:13px;color:#fff;padding:5px 16px;border-radius:999px;font-weight:600;line-height:1.4}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{display:block;background:#fff;border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow);transition:all .3s;border-top:3px solid transparent}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-top-color:var(--orange)}
.news-card time{font-size:13px;color:var(--orange);font-weight:700}
.news-card h4{font-size:17px;color:var(--navy);margin:8px 0 8px;line-height:1.5}
.news-card p{font-size:13.5px;color:var(--gray);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 关于我们 ---------- */
.about-lead{max-width:960px;margin:0 auto;font-size:15.5px;color:var(--gray);background:#fff;border-radius:var(--radius);padding:36px 40px;box-shadow:var(--shadow)}
.about-lead p{margin-bottom:14px}
.about-lead p:last-child{margin-bottom:0}
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.culture-card{background:#fff;border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow);text-align:center;transition:all .3s}
.culture-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.culture-card .cu-ico{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:linear-gradient(135deg,var(--navy),var(--navy-3));display:flex;align-items:center;justify-content:center;font-size:26px}
.culture-card h4{font-size:18px;color:var(--navy);margin-bottom:10px}
.culture-card h4 span{color:var(--orange)}
.culture-card p{font-size:14px;color:var(--gray)}
.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cert-cell{aspect-ratio:3/4;border-radius:10px;background:var(--bg);border:1px dashed #C6D3EA;display:flex;align-items:center;justify-content:center;font-size:12.5px;color:#8CA0C4;text-align:center;padding:8px;transition:all .25s}
.cert-cell:hover{background:#fff;border-color:var(--orange);color:var(--orange)}
/* 招聘 */
.job-list{max-width:960px;margin:0 auto}
.job-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}
.job-card summary{display:flex;align-items:center;gap:16px;padding:22px 30px;cursor:pointer;list-style:none;transition:background .2s}
.job-card summary::-webkit-details-marker{display:none}
.job-card summary:hover{background:var(--bg)}
.job-card[open] summary{border-bottom:1px solid var(--line)}
.job-title{font-size:17px;font-weight:700;color:var(--navy)}
.job-mail{margin-left:auto;font-size:13px;color:var(--orange);font-weight:600}
.job-arrow{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--bg);color:var(--orange);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;transition:transform .25s}
.job-card[open] .job-arrow{transform:rotate(45deg)}
.job-body{padding:26px 30px;font-size:14px;color:var(--gray)}
.job-body h5{font-size:14.5px;color:var(--navy);margin:12px 0 8px}
.job-body ol{list-style:decimal;padding-left:22px}
.job-body ol li{margin-bottom:5px}

/* ---------- 讲师 / 资讯 ---------- */
.teacher-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.teacher-card{background:#fff;border-radius:var(--radius);padding:32px 28px;box-shadow:var(--shadow);transition:all .3s;text-align:center}
.teacher-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.teacher-avatar{width:76px;height:76px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#fff;font-size:28px;font-weight:800;display:flex;align-items:center;justify-content:center}
.teacher-card h4{font-size:18px;color:var(--navy)}
.teacher-card .t-role{font-size:12.5px;color:var(--orange);font-weight:600;margin:6px 0 12px}
.teacher-card p{font-size:13px;color:var(--gray);text-align:left;margin-bottom:12px}
.teacher-card .t-courses{font-size:12.5px;color:var(--navy);background:var(--bg);border-radius:10px;padding:12px 14px;text-align:left;line-height:1.8}
.teacher-card .t-books{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.teacher-card .t-book{font-size:12.5px;color:var(--orange);border:1px solid var(--orange);border-radius:999px;padding:4px 14px;text-decoration:none;transition:all .2s}
.teacher-card .t-book:hover{background:var(--orange);color:#fff}
.teacher-card .t-book-plain{font-size:12.5px;color:var(--gray);border:1px solid var(--line);border-radius:999px;padding:4px 14px}

/* ---------- 云朵气泡 ---------- */
.cloud{position:absolute;right:70px;top:50%;transform:translateY(-50%) translateX(10px);background:#fff;border-radius:18px;padding:14px 22px;box-shadow:0 12px 30px rgba(10,31,68,.18);font-size:14px;color:var(--navy);white-space:nowrap;opacity:0;visibility:hidden;transition:all .35s cubic-bezier(.25,.8,.35,1);z-index:5}
.cloud::after{content:"";position:absolute;right:-8px;top:50%;transform:translateY(-50%);border:8px solid transparent;border-left-color:#fff}
.cloud.show{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.cloud b{color:var(--orange)}
.float-btn-wrap{position:relative}
/* ---------- 电话弹窗 ---------- */
.tel-modal-card{width:min(420px,90vw)}
.tel-hotline{display:flex;justify-content:space-between;align-items:center;padding:13px 18px;background:var(--bg);border-radius:10px;margin-bottom:10px;font-size:15px}
.tel-hotline b{color:var(--navy);font-weight:700}
.tel-hotline a{color:var(--orange);font-weight:700;letter-spacing:1px}
.tel-hotline a:hover{text-decoration:underline}
.tel-qr-row{display:flex;gap:16px;margin-top:6px}
.tel-qr{flex:1;text-align:center;background:var(--bg);border-radius:12px;padding:16px 10px}
.tel-qr img{width:110px;height:110px;object-fit:contain;margin:0 auto 10px}
.tel-qr p{font-size:12.5px;color:var(--gray)}
.modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;visibility:hidden;opacity:0;transition:all .3s}
.modal.show{visibility:visible;opacity:1}
.modal-mask{position:absolute;inset:0;background:rgba(8,24,49,.55);backdrop-filter:blur(4px)}
.modal-card{position:relative;width:min(440px,90vw);background:#fff;border-radius:20px;padding:40px 36px;box-shadow:0 30px 80px rgba(10,31,68,.35);transform:translateY(24px) scale(.96);transition:transform .3s}
.modal.show .modal-card{transform:none}
.modal-close{position:absolute;top:14px;right:16px;width:32px;height:32px;border-radius:50%;border:none;background:var(--bg);color:var(--gray);font-size:18px;cursor:pointer;transition:all .2s}
.modal-close:hover{background:var(--orange);color:#fff}
.modal-card h3{font-size:22px;color:var(--navy);margin-bottom:8px}
.modal-sub{font-size:13.5px;color:var(--gray);margin-bottom:22px}
.modal-card input{width:100%;height:48px;border:1px solid var(--line);border-radius:10px;padding:0 16px;font-size:14.5px;margin-bottom:14px;outline:none;transition:border .2s;font-family:inherit}
.modal-card input:focus{border-color:var(--orange)}
.modal-submit{width:100%;height:48px;margin-top:4px}
.modal-tel{margin-top:18px;text-align:center;font-size:13px;color:var(--gray)}
.modal-tel b{color:var(--orange)}
.modal-ok{text-align:center;font-size:15px;color:var(--navy);line-height:2;padding:24px 0}
.modal-ok b{font-size:19px}

.footer{background:var(--navy);color:rgba(255,255,255,.65);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:56px}
.foot-brand .logo-txt{color:#fff}
.foot-about{margin-top:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:16px 18px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.6)}
.foot-col h5{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col a{display:block;font-size:13.5px;padding:9px 0;transition:color .2s}
.foot-col a:hover{color:var(--orange-2)}
.foot-contact p{font-size:13.5px;padding:7px 0;line-height:1.9}
.foot-contact b{color:#fff;font-size:20px;display:block;margin-bottom:8px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:26px 0;font-size:12.5px;text-align:center;color:rgba(255,255,255,.4);line-height:2}
.foot-bottom a{color:rgba(255,255,255,.55)}

.float-bar{position:fixed;right:16px;bottom:80px;z-index:99;display:flex;flex-direction:column;gap:10px}
.float-btn{width:56px;height:56px;border-radius:14px;background:#fff;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--navy);gap:2px;cursor:pointer;transition:all .25s;border:1px solid var(--line)}
.float-btn:hover{background:var(--orange);color:#fff;border-color:var(--orange)}
.float-btn svg{width:20px;height:20px}
#backTop{opacity:0;visibility:hidden}
#backTop.show{opacity:1;visibility:visible}

/* ---------- 动效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(28px);transition:all .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .intro-grid,.case-main{grid-template-columns:1fr;gap:40px}
  .sys-grid,.culture-grid,.teacher-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .tri-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:repeat(3,1fr)}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:640px){
  .nav{display:none}
  .page-hero{padding-top:120px}
  .page-hero h1{font-size:30px}
  .sec-title{font-size:25px}
  .sys-grid,.pain-grid,.culture-grid,.teacher-grid,.news-grid,.intro-points{grid-template-columns:1fr}
  .value-grid{grid-template-columns:1fr 1fr}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(1,1fr)}
  .cta h2{font-size:25px}
}

/* ============================================================
   方案正文（sol-*.html 嵌入内容）· 官网化样式（.sol-article 作用域隔离）
   内容 HTML 原样保留，仅配色/质感对齐官网设计体系（藏青 + 品牌橙）
   ============================================================ */
/* 白卡上浮叠进 hero 底部：hero 与正文融合过渡（藏青底衬白卡圆角） */
.sol-wrap{padding:0 20px 64px;margin-top:-46px;position:relative;z-index:1}
.sol-article{line-height:1.75;color:var(--ink);font-size:15px}
.sol-article *{box-sizing:border-box}
/* 版心白卡 */
.sol-article .page{max-width:960px;margin:0 auto;background:#fff;border-radius:18px;box-shadow:var(--shadow);overflow:hidden;padding:0 0 44px}
.sol-article .banner{width:100%;display:block}
.sol-article .content{padding:10px 46px 44px}
/* 章节标题：藏青 + 橙色左条 */
.sol-article h2{font-size:21px;color:var(--navy);font-weight:700;margin:36px 0 12px;padding:2px 0 2px 14px;border-left:4px solid var(--orange);line-height:1.4}
.sol-article h3{font-size:16px;color:var(--navy);font-weight:700;margin:20px 0 8px}
.sol-article .sub{color:var(--gray);font-size:13px;margin:0 0 18px;padding-left:16px}
/* 正文 */
.sol-article p{margin:10px 0;font-size:15px;color:var(--ink)}
.sol-article .lead{font-size:16.5px;color:var(--navy-3)}
.sol-article strong{color:var(--navy-3);font-weight:700}
.sol-article .num{color:var(--orange);font-weight:700}
.sol-article ul{margin:10px 0;padding-left:22px;list-style:disc}
.sol-article ol{margin:10px 0;padding-left:22px;list-style:decimal}
.sol-article li{margin:6px 0;font-size:15px}
.sol-article li::marker{color:var(--orange)}
.sol-article .center{text-align:center}
.sol-article .note{font-size:13px;color:var(--gray)}
.sol-article .kv{margin:10px 0}
.sol-article .kv b{color:var(--navy-3)}
/* 提示 / 警示 / 步骤 / 特例 */
.sol-article .gold{background:var(--bg);border-left:4px solid var(--orange);padding:14px 18px;margin:14px 0;border-radius:0 10px 10px 0;font-size:15px}
.sol-article .callout{background:#EEF6F6;border-left:4px solid #0E7C7B;padding:14px 18px;margin:14px 0;border-radius:0 10px 10px 0;font-size:14px}
.sol-article .myth{background:#FFF4EC;border-left:4px solid var(--orange);padding:14px 18px;margin:12px 0;border-radius:0 10px 10px 0}
.sol-article .myth b.why{color:var(--orange)}
.sol-article .myth .right{color:#0E7C7B;font-weight:600}
.sol-article .action{background:#FFF9F3;border:1px solid #FFD9BD;border-radius:12px;padding:14px 18px;margin:12px 0;font-size:14px}
.sol-article .action b{color:var(--orange)}
.sol-article .special{background:#EEF6F6;border:1px solid #BEE3E0;border-radius:12px;padding:14px 18px;margin:10px 0;font-size:14px}
.sol-article .special b{color:#0E7C7B}
/* 表格：藏青表头 + 官网分隔线 + 斑马纹 */
.sol-article table{width:100%;border-collapse:collapse;margin:14px 0 20px;font-size:14px;table-layout:fixed}
.sol-article th,.sol-article td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:middle;word-break:break-word}
.sol-article th{background:var(--navy-3);color:#fff;font-weight:600;text-align:center}
.sol-article tr:nth-child(even) td{background:var(--bg)}
/* 徽章：语义保留，官网低饱和色调 */
.sol-article .tag{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;margin-right:6px;white-space:nowrap}
.sol-article .tag-ind{background:#E8EDF7;color:var(--navy-3)}
.sol-article .tag-cat{background:#FFEEE3;color:var(--orange)}
.sol-article .tag-size{background:#E0F2F1;color:#0E7C7B}
.sol-article .lvl-high{background:#FDECEA;color:#C0392B}
.sol-article .lvl-mid{background:#FFF1E0;color:#D9660B}
.sol-article .lvl-low{background:#E6F4EE;color:#2E7D5B}
.sol-article .pri{display:inline-block;padding:1px 8px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.sol-article .pri-first{background:#FDECEA;color:#C0392B}
.sol-article .pri-then{background:#FFF1E0;color:#D9660B}
.sol-article .pri-later{background:#E6F4EE;color:#2E7D5B}
/* 30 秒速读：官网深蓝渐变卡 */
.sol-article .summary{background:linear-gradient(135deg,#0A1F44,#1B3A75);color:#fff;border-radius:14px;padding:22px 26px;margin:18px 0 8px;box-shadow:var(--shadow)}
.sol-article .summary h2{color:#fff;border-left:none;padding-left:0;font-size:18px;margin:0 0 10px}
.sol-article .summary ul{margin:0 0 0 20px;list-style:disc}
.sol-article .summary li{color:rgba(240,246,255,.95);font-size:14px}
.sol-article .summary li strong{color:#fff}
.sol-article .summary li::marker{color:rgba(255,255,255,.6)}
/* FAQ */
.sol-article .faq{margin:14px 0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.sol-article .faq .q{padding:12px 18px;background:var(--bg);font-weight:700;color:var(--navy);font-size:14.5px;border-bottom:1px solid var(--line)}
.sol-article .faq .a{padding:12px 18px;font-size:14px}
.sol-article .faq .a p{margin:6px 0;font-size:14px}
/* 页脚注 & 延伸阅读 */
.sol-article .footer-note{margin-top:30px;padding:14px 18px;background:var(--bg);border-radius:10px;font-size:13px;color:var(--gray);border-left:4px solid var(--line)}
.sol-article .relate{margin-top:26px;padding:18px 20px;background:var(--bg);border-radius:14px}
.sol-article .relate h3{margin:0 0 6px;color:var(--navy);font-size:16px}
.sol-article .relate .note{display:block;margin-bottom:4px}
.sol-article .relate a{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin:6px 6px 0 0;font-size:13px;color:var(--navy-3);transition:all .2s}
.sol-article .relate a:hover{border-color:var(--orange);color:var(--orange)}
/* 总览页卡片 */
/* 分类引导语：深蓝渐变样式卡（放大字体，重点词黄色加粗） */
.sol-article .intro{display:block;background:linear-gradient(135deg,#0A1F44,#1B3A75);color:rgba(255,255,255,.92);font-size:16px;line-height:1.85;padding:16px 22px 16px 24px;border-radius:14px;border-left:4px solid var(--orange);margin:10px 0 22px;box-shadow:var(--shadow)}
.sol-article .intro strong{color:#FFD666;font-weight:700}
.sol-article .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:6px}
.sol-article .card{display:block;border:1px solid var(--line);border-radius:12px;padding:18px 20px;background:#fff;transition:all .2s}
.sol-article .card:hover{border-color:var(--orange);box-shadow:var(--shadow);transform:translateY(-2px)}
.sol-article .card .t{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:4px}
.sol-article .card .d{font-size:13px;color:var(--gray)}
/* 窄屏适配 */
@media(max-width:640px){
  .sol-article .content{padding:18px 18px 40px}
  .sol-article h2{font-size:19px}
  .sol-article .grid{grid-template-columns:1fr}
}

/* 总览板块跳转子页内链 */
.sec-more{display:inline-block;margin-top:8px;font-size:14px;font-weight:600;color:var(--orange)}
.sec-more:hover{gap:10px}

/* 首页方案板块：分组小标题改为标签样式；卡片网格居中（未满行自动居中） */
.sol-group{margin-top:44px}
.sol-group:first-of-type{margin-top:0}
.sol-group-h{display:inline-flex;align-items:center;gap:10px;padding:9px 22px;border-radius:999px;background:linear-gradient(135deg,#0A1F44,#1B3A75);color:#fff;font-size:15px;font-weight:700;letter-spacing:1.5px;box-shadow:var(--shadow)}
.sol-group-h i{font-style:normal;font-size:12.5px;font-weight:600;color:#FFD666;letter-spacing:.5px}
.sol-group-desc{margin:12px 0 0 6px;font-size:14px;color:var(--gray)}
.sol-group .sol-grid{margin-top:24px;display:flex;flex-wrap:wrap;justify-content:center;gap:20px}
.sol-group .sol-grid .sol-card{width:calc((100% - 80px)/5)}
@media(max-width:1024px){.sol-group .sol-grid .sol-card{width:calc((100% - 40px)/3)}}
@media(max-width:640px){.sol-group .sol-grid .sol-card{width:calc((100% - 20px)/2)}}