/* ============================================================
   中制联合 官网 - 设计系统 (P0 视觉打磨 + P1 结构重构)
   蓝金(资本) + AI青(智能) 双色系统 ｜ 无外部依赖
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root{
    /* 主色：资本/信任 */
    --navy:#0F2B5B;
    --navy-2:#183B7A;
    --navy-3:#224890;
    --navy-deep:#0A1F42;
    /* 强调：金色仅用于边框/图标/高亮，不做正文文字（对比度不足） */
    --gold:#D4AF37;
    --gold-light:#E9CB78;
    /* 点缀：AI 科技青 */
    --ai:#00B8A9;
    --ai-2:#35C2F0;
    /* 中性色 */
    --ink:#1A1A1A;
    --gray-6:#6B7280;
    --line:#E5E7EB;
    --bg-gray:#F5F7FA;
    --red:#C81623;
    --orange:#FF7D00;
    --green:#009E5F;

    --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei","微软雅黑",sans-serif;
    --radius:16px;
    --shadow-card:0 8px 30px rgba(10,31,66,.06);
    --shadow-hover:0 16px 44px rgba(10,31,66,.13);
    --transition:.35s cubic-bezier(.25,.8,.35,1);
}

/* ---------- 2. 基础重置与排版 ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{font-family:var(--font);background:#fff;color:var(--ink);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;}
ul{list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(212,175,55,.4);}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}

/* 字阶 */
h1,h2,h3,h4{font-weight:800;letter-spacing:.02em;}
p{line-height:1.9;}

/* 通用工具类 */
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.container-narrow{max-width:860px;}
.section{padding:90px 0;}
.section-tight{padding:70px 0;}
.band{background:var(--bg-gray);}
.text-center{text-align:center;}

/* 章节标题 */
.title-h2{font-size:clamp(1.5rem,2.6vw,2rem);color:var(--navy);border-left:5px solid var(--gold);padding-left:16px;margin:0 0 14px;}
.title-h2::after{content:'';display:block;width:80px;height:3px;margin-top:12px;background:linear-gradient(90deg,var(--gold),transparent);}
.title-h2.light{color:#fff;}
.section-lead{color:var(--gray-6);font-size:16px;max-width:760px;margin:0 0 18px;}
.section-lead.light{color:#c8d2e8;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 30px;border-radius:50px;font-size:15px;font-weight:600;text-decoration:none;border:none;cursor:pointer;transition:var(--transition);line-height:1;}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--gold-light));color:var(--navy);box-shadow:0 4px 16px rgba(212,175,55,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(212,175,55,.5);}
.btn-ghost{border:1.5px solid rgba(255,255,255,.85);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px);}
.btn-navy{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;box-shadow:0 4px 16px rgba(15,43,91,.3);}
.btn-navy:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(15,43,91,.42);}

/* 保密标签 */
.tag{display:inline-block;color:#fff;font-size:12px;padding:3px 10px;border-radius:20px;font-weight:500;letter-spacing:.03em;}
.tag-green{background:var(--green);}
.tag-orange{background:var(--orange);}
.tag-red{background:var(--red);}

/* ---------- 3. 全局水印（登录后开启，斜纹 + 中心文字） ---------- */
.watermark{position:fixed;inset:0;z-index:9990;display:none;pointer-events:none;opacity:.07;
    background:repeating-linear-gradient(45deg,transparent 0 46px,rgba(15,43,91,.28) 46px 47px,transparent 47px 94px);}
.watermark.show{display:block;}
.watermark::before{content:"中制联合 内部资料 禁止外传｜访问全程留痕";position:fixed;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-24deg);font-size:26px;letter-spacing:8px;color:var(--navy);white-space:nowrap;font-weight:700;}

/* ---------- 4. 顶部导航 ---------- */
.site-header{background:linear-gradient(90deg,var(--navy),var(--navy-2));color:#fff;position:sticky;top:0;z-index:999;box-shadow:0 4px 20px rgba(0,0,0,.18);}
.nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:72px;padding:0 24px;gap:18px;}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap;}
.logo-icon{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-light));color:var(--navy);font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 2px 10px rgba(212,175,55,.45);}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:19px;color:var(--gold-light);letter-spacing:.05em;}
.logo-text small{font-size:11px;color:#aebbd8;letter-spacing:.3em;margin-top:2px;}

.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-menu > a,.nav-drop > a{color:#e7ecf7;text-decoration:none;font-size:14.5px;padding:9px 13px;border-radius:8px;transition:.25s;position:relative;white-space:nowrap;display:inline-flex;align-items:center;gap:4px;}
.nav-menu > a:hover,.nav-drop > a:hover{color:#fff;background:rgba(255,255,255,.1);}
.nav-menu > a.active,.nav-drop > a.active{color:var(--gold-light);}
.nav-menu > a.active::after{content:'';position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--gold);border-radius:2px;}

/* 下拉（平台介绍） */
.nav-drop{position:relative;}
.drop-caret{font-size:10px;transition:.25s;}
.nav-drop:hover .drop-caret{transform:rotate(180deg);}
.drop-panel{position:absolute;top:calc(100% + 8px);left:0;min-width:172px;background:#fff;border-radius:12px;box-shadow:0 16px 40px rgba(10,31,66,.18);padding:8px;display:none;z-index:60;}
.nav-drop:hover .drop-panel,.nav-drop:focus-within .drop-panel{display:block;}
.drop-panel a{display:block;padding:10px 14px;border-radius:8px;color:var(--navy);font-size:14px;text-decoration:none;transition:.2s;}
.drop-panel a:hover{background:var(--bg-gray);color:var(--gold);transform:translateX(3px);}

.nav-actions{display:flex;align-items:center;gap:12px;}
.user-btn{background:linear-gradient(135deg,var(--gold),var(--gold-light));color:var(--navy);border:none;padding:10px 22px;border-radius:50px;cursor:pointer;font-weight:700;font-size:14px;box-shadow:0 3px 12px rgba(212,175,55,.4);transition:var(--transition);white-space:nowrap;min-height:40px;}
.user-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(212,175,55,.55);}

/* 汉堡按钮（移动端） */
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:10px;cursor:pointer;padding:0 11px;}
.hamburger span{height:2px;background:#fff;border-radius:2px;transition:.3s;}
.site-header.nav-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.nav-open .hamburger span:nth-child(2){opacity:0;}
.site-header.nav-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:992px){
    .hamburger{display:flex;}
    .nav-menu{position:fixed;top:72px;left:0;right:0;background:linear-gradient(180deg,var(--navy-2),var(--navy));flex-direction:column;align-items:stretch;padding:14px 20px 22px;gap:2px;display:none;box-shadow:0 18px 40px rgba(0,0,0,.35);max-height:calc(100vh - 72px);overflow-y:auto;}
    .nav-menu.open{display:flex;}
    .nav-menu > a,.nav-drop > a{padding:13px 12px;font-size:15px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:8px;}
    .nav-menu > a.active::after{display:none;}
    .nav-menu > a.active{background:rgba(212,175,55,.14);}
    .drop-panel{position:static;display:block;background:transparent;box-shadow:none;padding:2px 0 10px 18px;min-width:0;}
    .drop-panel a{color:#c8d2e8;padding:9px 12px;}
    .drop-panel a:hover{background:rgba(255,255,255,.08);color:#fff;transform:none;}
    .drop-caret{display:none;}
}

/* ---------- 5. 首页 Banner ---------- */
.banner{position:relative;min-height:640px;display:flex;align-items:center;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--navy-3) 100%);color:#fff;overflow:hidden;padding:96px 0 84px;}
.banner-bg{position:absolute;inset:0;pointer-events:none;}
.banner-bg::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse at 72% 28%,#000 20%,transparent 72%);mask-image:radial-gradient(ellipse at 72% 28%,#000 20%,transparent 72%);}
.orb{position:absolute;border-radius:50%;filter:blur(70px);}
.orb-1{width:440px;height:440px;right:-100px;top:-130px;background:radial-gradient(circle,rgba(0,184,169,.5),transparent 70%);}
.orb-2{width:400px;height:400px;left:-120px;bottom:-160px;background:radial-gradient(circle,rgba(212,175,55,.32),transparent 70%);}
.banner-inner{position:relative;z-index:1;text-align:center;}
.banner-eyebrow{display:inline-block;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);padding:8px 20px;border-radius:50px;font-size:13px;letter-spacing:.12em;color:#dbe3f2;margin-bottom:26px;backdrop-filter:blur(6px);}
.banner h1{font-size:clamp(1.9rem,4.6vw,3.2rem);line-height:1.25;font-weight:800;letter-spacing:.03em;margin-bottom:22px;text-shadow:0 2px 24px rgba(0,0,0,.3);}
.banner h1 .gold-text{color:var(--gold-light);}
.banner-sub{font-size:clamp(1rem,1.8vw,1.25rem);opacity:.94;max-width:820px;margin:0 auto 18px;color:#e2e8f5;}
.banner-tip{display:inline-block;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);padding:10px 24px;border-radius:50px;font-size:14px;color:#c8d2e8;backdrop-filter:blur(6px);}

/* 数据指标行 */
.banner-metrics{display:flex;justify-content:center;gap:52px;flex-wrap:wrap;margin:44px 0 42px;}
.metric{min-width:96px;}
.metric strong{display:block;font-size:clamp(1.7rem,3vw,2.1rem);color:var(--gold-light);font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1;}
.metric span{display:block;font-size:13.5px;color:#b9c6e0;margin-top:4px;letter-spacing:.06em;}
.banner-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
@media (max-width:768px){
    .banner{padding:70px 0 60px;min-height:auto;}
    .banner-metrics{gap:22px;margin:34px 0 36px;}
    .metric{min-width:38%;}
}

/* ---------- 6. 平台介绍 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:36px;}
.about-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-card);transition:var(--transition);}
.about-col:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.about-col .col-icon{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--navy-2));display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--gold-light);}
.about-col h3{font-size:19px;color:var(--navy);margin-bottom:12px;}
.about-col p{color:var(--gray-6);font-size:14.5px;}
@media (max-width:768px){.about-grid{grid-template-columns:1fr;}}

/* ---------- 7. 发起人介绍 ---------- */
.founder-wrap{display:grid;grid-template-columns:380px 1fr;gap:44px;align-items:center;background:#fff;border-radius:20px;box-shadow:var(--shadow-card);padding:44px;border:1px solid var(--line);margin-top:36px;}
.founder-img{height:340px;border-radius:16px;background:linear-gradient(135deg,var(--navy-3),var(--navy));display:flex;align-items:center;justify-content:center;box-shadow:0 8px 30px rgba(15,43,91,.25);position:relative;overflow:hidden;}
.founder-img::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:34px 34px;}
.founder-img svg{position:relative;z-index:1;}
.founder-text h3{font-size:23px;color:var(--navy);margin-bottom:14px;}
.founder-text .sub-title{color:var(--gold);font-size:15.5px;margin-bottom:18px;letter-spacing:.08em;font-weight:600;}
.founder-text p{color:#4a5265;font-size:14.5px;margin:10px 0;}
.founder-advantage{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.advantage-tag{background:var(--bg-gray);color:var(--navy);padding:8px 16px;border-radius:30px;font-size:13.5px;font-weight:600;border:1px solid var(--line);}
@media (max-width:992px){
    .founder-wrap{grid-template-columns:1fr;padding:28px;}
    .founder-img{height:220px;}
}

/* ---------- 8. 合伙人体系 ---------- */
.partner-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-top:36px;}
.partner-card{position:relative;background:#fff;border:1px solid var(--line);border-top:4px solid var(--gold);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow-card);transition:var(--transition);}
.partner-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.partner-card.hot{border-top-color:var(--ai);background:linear-gradient(180deg,#f4fbfa,#fff 40%);}
.hot-badge{position:absolute;top:-13px;right:18px;background:linear-gradient(135deg,var(--ai),var(--ai-2));color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:20px;box-shadow:0 4px 12px rgba(0,184,169,.4);letter-spacing:.05em;}
.p-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--navy-2));display:flex;align-items:center;justify-content:center;color:var(--gold-light);margin-bottom:16px;}
.partner-card h3{font-size:17.5px;color:var(--navy);margin-bottom:12px;}
.benefit-list li{display:flex;gap:9px;align-items:flex-start;color:#4a5265;font-size:13.5px;line-height:1.7;margin:7px 0;}
.benefit-list li::before{content:'';flex-shrink:0;width:16px;height:16px;margin-top:4px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300B8A9' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;}

/* ---------- 9. 申请表单 ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-card);padding:34px;margin-top:32px;}
.form-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:22px;padding-bottom:16px;border-bottom:1px dashed var(--line);}
.form-head h3{font-size:18px;color:var(--navy);}
.form-tag{background:rgba(0,184,169,.12);color:var(--ai);font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:20px;letter-spacing:.04em;}
.form-group{margin-bottom:24px;}
.form-group h4{font-size:14px;color:var(--navy);font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.form-group h4::before{content:'';width:4px;height:14px;border-radius:2px;background:var(--gold);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-item label{display:block;font-size:13.5px;color:var(--gray-6);margin-bottom:6px;font-weight:500;}
.form-item input,.form-item select,.form-item textarea{width:100%;border:1px solid var(--line);padding:12px 14px;border-radius:10px;font-size:14px;background:var(--bg-gray);transition:.25s;font-family:inherit;color:var(--ink);}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px rgba(212,175,55,.18);}
.form-item textarea{resize:vertical;}
.form-item-full{grid-column:1/-1;}
@media (max-width:768px){.form-grid{grid-template-columns:1fr;}}
.form-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:8px;}
.form-hint{font-size:12.5px;color:#9aa3b5;}
.submit-btn{position:relative;min-width:180px;}
.submit-btn .spinner{display:none;width:16px;height:16px;border:2px solid rgba(15,43,91,.25);border-top-color:var(--navy);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0;}
.submit-btn.loading{pointer-events:none;opacity:.85;}
.submit-btn.loading .spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

/* AI 初审流程步骤条 */
.ai-stepper{display:none;align-items:center;gap:0;margin-top:28px;padding:20px 22px;background:var(--bg-gray);border-radius:12px;border:1px dashed var(--line);}
.ai-stepper.show{display:flex;}
.ai-stepper .step{display:flex;align-items:center;gap:8px;color:#9aa3b5;font-size:13px;flex:1;white-space:nowrap;}
.ai-stepper .step i{width:24px;height:24px;border-radius:50%;background:#d8dce6;color:#fff;font-style:normal;display:flex;align-items:center;justify-content:center;font-size:12px;transition:.35s;flex-shrink:0;}
.ai-stepper .step.active{color:var(--navy);font-weight:700;}
.ai-stepper .step.active i{background:var(--gold);}
.ai-stepper .step.done{color:var(--green);}
.ai-stepper .step.done i{background:var(--green);}
.ai-stepper .step::after{content:'';flex:1;height:2px;background:var(--line);margin:0 10px;transition:.35s;}
.ai-stepper .step.done::after,.ai-stepper .step.active::after{background:var(--green);}
.ai-stepper .step:last-child::after{display:none;}
@media (max-width:768px){.ai-stepper{flex-wrap:wrap;gap:10px;}.ai-stepper .step{flex:1 1 44%;}.ai-stepper .step::after{display:none;}}

/* ---------- 10. AI 核心能力（全宽深色区） ---------- */
.ai-section{background:linear-gradient(150deg,var(--navy) 0%,var(--navy-2) 55%,var(--navy-3) 100%);color:#fff;position:relative;overflow:hidden;}
.ai-section::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:52px 52px;-webkit-mask-image:radial-gradient(ellipse at 20% 80%,#000 10%,transparent 65%);mask-image:radial-gradient(ellipse at 20% 80%,#000 10%,transparent 65%);}
.ai-section .container{position:relative;z-index:1;}
.ai-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;margin-top:40px;}
.ai-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:28px;transition:var(--transition);backdrop-filter:blur(4px);position:relative;overflow:hidden;}
.ai-card::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--gold),transparent);opacity:0;transition:.35s;}
.ai-card:hover{background:rgba(255,255,255,.13);transform:translateY(-6px);}
.ai-card:hover::after{opacity:1;}
.ai-icon{width:48px;height:48px;border-radius:12px;background:rgba(0,184,169,.18);border:1px solid rgba(0,184,169,.35);display:flex;align-items:center;justify-content:center;color:var(--ai-2);margin-bottom:16px;}
.ai-card h3{font-size:17.5px;color:var(--gold-light);margin-bottom:10px;}
.ai-card p{color:#cdd6e8;font-size:13.5px;}
.ai-demo{margin-top:12px;padding:9px 12px;background:rgba(0,184,169,.12);border-left:3px solid var(--ai);border-radius:6px;color:#bfe9e4;font-size:12.5px;}

/* ---------- 11. 盈利体系（数字大卡） ---------- */
.profit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;margin-top:36px;}
.profit-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow-card);transition:var(--transition);position:relative;overflow:hidden;}
.profit-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.profit-no{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--gold);margin-bottom:14px;}
.profit-card h3{font-size:17.5px;color:var(--navy);margin-bottom:10px;}
.profit-card p{color:var(--gray-6);font-size:13.5px;}
.profit-card .profit-watermark{position:absolute;right:-8px;bottom:-18px;font-size:92px;font-weight:800;color:rgba(15,43,91,.05);pointer-events:none;line-height:1;}

/* ---------- 12. 三年战略规划 ---------- */
.plan-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-top:40px;position:relative;}
.plan-steps::before{content:'';position:absolute;top:22px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,var(--gold),rgba(212,175,55,.2),var(--gold));z-index:0;}
.plan-step{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow-card);transition:var(--transition);text-align:center;}
.plan-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.step-no{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-light));color:var(--navy);font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;box-shadow:0 4px 14px rgba(212,175,55,.4);}
.plan-step h3{font-size:17.5px;color:var(--navy);margin-bottom:10px;}
.plan-step p{color:var(--gray-6);font-size:13.5px;text-align:left;}
.step-metric{margin-top:12px;padding:9px 12px;background:var(--bg-gray);border-radius:8px;color:var(--navy);font-size:12.5px;font-weight:600;text-align:left;}
@media (max-width:768px){.plan-steps::before{display:none;}}

/* ---------- 13. 制度文件中心 ---------- */
.file-box{background:#fff;border-radius:14px;box-shadow:var(--shadow-card);overflow:hidden;margin:18px 0;border:1px solid var(--line);}
.file-title{background:linear-gradient(90deg,#fafbfc,#f5f7fa);padding:18px 24px;font-weight:700;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:15.5px;transition:.25s;gap:12px;}
.file-title:hover{background:linear-gradient(90deg,#f0f3f7,#eef1f5);}
.file-title .ft-left{display:flex;align-items:center;gap:10px;color:var(--navy);}
.file-lock{font-size:15px;flex-shrink:0;}
.file-caret{font-size:11px;color:#9aa3b5;transition:.3s;flex-shrink:0;}
.file-box.open .file-caret{transform:rotate(180deg);}
.file-list{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;}
.file-list.show{max-height:3000px;padding:16px 24px 22px;}
.file-list a{display:block;padding:12px 15px;margin:7px 0;background:#fafbfc;border-radius:8px;color:#3d4356;text-decoration:none;transition:.25s;cursor:pointer;font-size:14px;border:1px solid transparent;}
.file-list a:hover{background:var(--navy);color:#fff;border-color:var(--navy);transform:translateX(5px);}
.no-auth{padding:34px;background:#fff8f8;border-radius:12px;color:var(--red);text-align:center;margin:28px 0;border:1px solid #ffe6e6;font-size:14.5px;}

/* ---------- 14. 弹窗 ---------- */
.mask{position:fixed;inset:0;background:rgba(10,31,66,.62);z-index:9998;display:none;align-items:center;justify-content:center;backdrop-filter:blur(5px);padding:20px;}
.mask.show{display:flex;}
.pop-box{background:#fff;width:100%;max-width:470px;border-radius:18px;padding:36px;position:relative;box-shadow:0 24px 70px rgba(0,0,0,.35);max-height:88vh;overflow-y:auto;}
.pop-box-lg{max-width:900px;}
.pop-box h3{margin-bottom:8px;color:var(--navy);font-size:19px;}
.pop-sub{font-size:12.5px;color:var(--gray-6);margin-bottom:20px;}
.pop-box input[type="text"],.pop-box input[type="password"]{width:100%;border:1px solid var(--line);padding:13px 15px;border-radius:10px;margin:10px 0;font-size:14.5px;background:var(--bg-gray);font-family:inherit;transition:.25s;color:var(--ink);}
.pop-box input:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px rgba(212,175,55,.18);}
.pop-tip{font-size:12px;color:#9aa3b5;margin:4px 0;}
.secret-agree{background:var(--bg-gray);border-radius:10px;padding:14px;margin:14px 0;font-size:13px;color:#4a5265;display:flex;gap:10px;align-items:flex-start;line-height:1.7;}
.secret-agree input{margin:4px 0 0;width:auto;padding:0;flex-shrink:0;accent-color:var(--gold);}
.pop-btn{width:100%;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border:none;padding:14px;border-radius:10px;margin-top:18px;cursor:pointer;font-size:15.5px;font-weight:600;transition:.3s;}
.pop-btn:hover{opacity:.95;box-shadow:0 8px 20px rgba(15,43,91,.35);}
.pop-btn.disabled{background:#c4c9d4;cursor:not-allowed;box-shadow:none;}
.pop-btn.disabled:hover{opacity:1;box-shadow:none;}
.close-pop{position:absolute;top:18px;right:22px;font-size:26px;cursor:pointer;color:#9aa3b5;z-index:10;line-height:1;transition:.2s;background:none;border:none;}
.close-pop:hover{color:var(--navy);transform:rotate(90deg);}
.preview-content{line-height:2;font-size:14.5px;color:#333;text-align:left;position:relative;padding:16px 4px 130px;}
.preview-content h4{color:var(--navy);margin:16px 0 8px;}
.preview-content p{margin:7px 0;}

/* 签名 + 电子公章 */
.sign-area{margin-top:34px;padding:28px;border:1px dashed #ccc;border-radius:12px;text-align:center;}
.sign-area h4{font-size:15px;color:var(--navy);margin-bottom:14px;}
.sign-canvas{border:1px solid #ddd;border-radius:8px;background:#fff;width:100%;height:180px;touch-action:none;}
.sign-btn-group{display:flex;gap:14px;margin-top:14px;justify-content:center;flex-wrap:wrap;}
.sign-btn{padding:11px 20px;border-radius:8px;border:none;cursor:pointer;font-size:13.5px;font-weight:600;transition:.25s;}
.btn-clear{background:#eee;color:#333;}
.btn-seal{background:var(--red);color:#fff;}
.btn-save{background:var(--green);color:#fff;}
.sign-btn:hover{transform:translateY(-2px);}
.e-seal{width:160px;height:160px;border:3px solid var(--red);border-radius:50%;position:absolute;right:30px;bottom:20px;color:var(--red);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;transform:rotate(-8deg);opacity:.95;pointer-events:none;}
.e-seal::before{content:'中制联合平台专用章';letter-spacing:2px;}
.seal-inner{position:absolute;width:120px;height:120px;border:1px solid var(--red);border-radius:50%;}
.signed-finish{display:none;margin-top:28px;padding:20px;border:1px solid #eee;border-radius:12px;background:#fdfdfd;}
.finish-btn-group{display:flex;gap:14px;margin-top:20px;justify-content:center;}

/* ---------- 15. Toast 反馈 ---------- */
.toast{position:fixed;top:88px;left:50%;transform:translateX(-50%) translateY(-14px);background:var(--navy);color:#fff;padding:13px 26px;border-radius:50px;font-size:14px;font-weight:500;box-shadow:0 14px 40px rgba(10,31,66,.4);opacity:0;transition:.35s;z-index:10000;pointer-events:none;display:flex;align-items:center;gap:9px;border:1px solid rgba(212,175,55,.35);}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.toast .t-dot{width:8px;height:8px;border-radius:50%;background:var(--gold-light);flex-shrink:0;}

/* ---------- 16. 页脚 ---------- */
footer{background:var(--navy-deep);color:#aebbd8;margin-top:0;padding:60px 0 34px;}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:26px;}
.footer-brand .logo-text strong{color:#fff;font-size:20px;}
.footer-brand p{font-size:13.5px;color:#8f9dbe;margin-top:14px;max-width:420px;line-height:1.9;}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;align-content:start;}
.footer-links a{color:#aebbd8;font-size:13.5px;text-decoration:none;transition:.2s;padding:3px 0;}
.footer-links a:hover{color:var(--gold-light);transform:translateX(3px);display:inline-block;}
.footer-copy{text-align:center;font-size:12.5px;color:#7d8bb0;line-height:2;}
.footer-copy .icp{opacity:.75;}
@media (max-width:768px){.footer-inner{grid-template-columns:1fr;gap:28px;}}

/* ---------- 17. 回到顶部 ---------- */
.back-top{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:var(--gold-light);border:1px solid rgba(255,255,255,.18);box-shadow:0 10px 28px rgba(10,31,66,.35);font-size:18px;cursor:pointer;opacity:0;visibility:hidden;transition:.3s;z-index:9000;display:flex;align-items:center;justify-content:center;}
.back-top.show{opacity:1;visibility:visible;}
.back-top:hover{transform:translateY(-3px);}

/* ---------- 18. 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none !important;transition:none !important;}
    html{scroll-behavior:auto;}
    .reveal{opacity:1;transform:none;}
}

/* ---------- 19. 打印 ---------- */
@media print{
    .site-header,.back-top,.toast,.mask,.banner-btns,.form-card{display:none !important;}
    body{color:#000;background:#fff;}
    .section{padding:20px 0;}
    .reveal{opacity:1;transform:none;}
}