/* ============================================
   邻里共治官网 v2.0 — 深度重构样式表
   Design: 温暖科技感 · 翡翠绿 + 暖橙
   ============================================ */

:root {
  /* 主色系 — 翡翠绿（信任/成长/和谐） */
  --color-primary: #059669;
  --color-primary-dark: #064E3B;
  --color-primary-light: #D1FAE5;
  --color-primary-50: #ECFDF5;
  /* 暖橙（活力/行动力） */
  --color-accent: #F97316;
  --color-accent-light: #FED7AA;
  /* 文字 */
  --color-text: #0F172A;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94A3B8;
  /* 背景 */
  --color-bg: #FAFAF9;
  --color-bg-warm: #FFFBEB;
  --color-white: #FFFFFF;
  --color-border: #E2E8F0;
  /* 金色强调 */
  --color-gold: #F59E0B;
  /* 尺寸 */
  --header-height: 68px;
  --container-width: 1180px;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  /* 字体：使用各平台原生中文字体，避免依赖被墙的 Google Fonts，零网络依赖即时渲染 */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(15,23,42,.08);
  --shadow: 0 4px 20px rgba(15,23,42,.08);
  --shadow-lg: 0 12px 40px rgba(15,23,42,.12);
  --shadow-glow: 0 8px 32px rgba(5,150,105,.25);
}

/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;scroll-padding-top:80px}
body{font-family:var(--font);color:var(--color-text);background:var(--color-bg);line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:all .2s}
img{max-width:100%;display:block}
ul{list-style:none}

/* 无障碍：跳转链接 */
.skip-link{position:absolute;top:-100px;left:0;background:var(--color-primary);color:#fff;padding:12px 24px;border-radius:0 0 8px 0;font-size:14px;font-weight:600;z-index:10000;transition:top .2s}
.skip-link:focus{top:0;outline:3px solid var(--color-gold);outline-offset:2px}
:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}

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

/* ===== HEADER ===== */
.site-header{
  position:sticky;top:0;z-index:1000;height:var(--header-height);
  background:rgba(255,255,255,.85);-webkit-backdrop-filter:blur(16px) saturate(180%);backdrop-filter:blur(16px) saturate(180%);
  border-bottom:1px solid rgba(226,232,240,.6);transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 2px 20px rgba(15,23,42,.06)}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px;max-width:var(--container-width);margin:0 auto}
.logo-area{display:flex;align-items:center;gap:10px}
.logo-icon{width:36px;height:36px;border-radius:9px;overflow:hidden;flex-shrink:0;box-shadow:var(--shadow-sm)}
.brand-name{font-size:19px;font-weight:700;color:var(--color-text);letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{font-size:14px;font-weight:500;color:var(--color-text-secondary);position:relative;padding:4px 0}
.nav-link:hover{color:var(--color-primary)}
.nav-link.active{color:var(--color-primary);font-weight:600}
.nav-link.active::after{content:'';position:absolute;bottom:-6px;left:0;right:0;height:2px;background:var(--color-primary);border-radius:1px}
.header-cta{display:flex;align-items:center;gap:14px}
.login-link{font-size:14px;font-weight:500;color:var(--color-text-secondary)}
.login-link:hover{color:var(--color-primary)}
.hamburger{display:none;width:28px;height:28px;border:none;background:none;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;padding:0}
.hamburger span{display:block;width:100%;height:2px;background:var(--color-text);border-radius:1px;transition:.3s}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-weight:600;border:none;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);white-space:nowrap;border-radius:12px}
.btn-primary{background:linear-gradient(135deg,#10B981,#059669);color:#fff;box-shadow:0 4px 14px rgba(5,150,105,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(5,150,105,.4)}
.btn-dark{background:#1E293B;color:#fff}
.btn-dark:hover{background:#0F172A;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--color-text);border:1.5px solid var(--color-border)}
.btn-ghost:hover{border-color:var(--color-primary);color:var(--color-primary)}
.btn-white{background:#fff;color:var(--color-primary-dark)}
.btn-white:hover{box-shadow:0 8px 24px rgba(0,0,0,.15);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 32px;font-size:16px}
.btn-store{padding:12px 22px;font-size:14px;text-align:left;line-height:1.3}
.store-text small{font-size:11px;opacity:.7;font-weight:400}

/* ===== SECTIONS ===== */
.section{padding:90px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-label{display:inline-block;font-size:13px;font-weight:600;color:var(--color-primary);letter-spacing:.05em;text-transform:uppercase;margin-bottom:14px;background:var(--color-primary-50);padding:6px 16px;border-radius:50px}
.section-title{font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.25;color:var(--color-text);margin-bottom:16px;letter-spacing:-.02em}
.section-desc{font-size:16px;color:var(--color-text-secondary);line-height:1.7}
.hl{color:var(--color-primary);position:relative}
.hl::after{content:'';position:absolute;bottom:2px;left:0;right:0;height:8px;background:var(--color-primary-light);z-index:-1;border-radius:4px}

/* ===== HERO ===== */
.hero-section{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#064E3B 0%,#065F46 35%,#047857 100%);
  color:#fff;padding:80px 24px 100px;
  display:flex;align-items:center;justify-content:center;gap:60px;
  min-height:600px;
}
.hero-blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.4;animation:float 12s ease-in-out infinite}
.blob-1{width:500px;height:500px;background:#10B981;top:-100px;left:-100px}
.blob-2{width:400px;height:400px;background:#F97316;bottom:-80px;right:10%;opacity:.25;animation-delay:-6s}
.hero-grid-overlay{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:50px 50px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%)}
.hero-content{position:relative;z-index:2;max-width:580px;flex-shrink:0}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:8px 16px;border-radius:50px;font-size:13px;font-weight:500;margin-bottom:28px;border:1px solid rgba(255,255,255,.15)}
.badge-dot{width:8px;height:8px;background:#34D399;border-radius:50%;box-shadow:0 0 12px #34D399;animation:pulse 2s infinite}
.hero-title{font-size:clamp(34px,5.5vw,58px);font-weight:900;line-height:1.15;margin-bottom:24px;letter-spacing:-.03em}
.grad-text{background:linear-gradient(135deg,#FBBF24,#F97316);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-subtitle{font-size:17px;opacity:.82;line-height:1.75;margin-bottom:36px;max-width:520px}
.hero-cta-group{display:flex;gap:14px;margin-bottom:28px;flex-wrap:wrap}
.hero-trust{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;opacity:.7}
.trust-item{display:flex;align-items:center;gap:4px}

/* Hero 手机 Mockup */
.hero-phone{position:relative;z-index:2;flex-shrink:0;animation:floatPhone 6s ease-in-out infinite}
.phone-frame{
  width:280px;background:#1E293B;border-radius:36px;padding:10px;
  box-shadow:0 25px 60px rgba(0,0,0,.4),0 0 0 2px rgba(255,255,255,.08);
  position:relative;
}
.phone-frame.small{width:240px;border-radius:30px;padding:8px}
.phone-notch{position:absolute;top:10px;left:50%;transform:translateX(-50%);width:90px;height:22px;background:#1E293B;border-radius:0 0 14px 14px;z-index:3}
.phone-frame.small .phone-notch{width:70px;height:18px;top:8px}
.phone-screen{background:linear-gradient(180deg,#F8FAFC,#F1F5F9);border-radius:28px;overflow:hidden;height:480px;display:flex;flex-direction:column}
.phone-frame.small .phone-screen{border-radius:22px;height:420px}

/* App界面元素 */
.app-statusbar{display:flex;justify-content:space-between;padding:10px 18px 4px;font-size:11px;font-weight:600;color:#0F172A}
.app-status-icons{letter-spacing:1px}
.app-header{padding:6px 18px 12px}
.app-greeting{font-size:18px;font-weight:800;color:#0F172A}
.app-community{font-size:11px;color:#64748B;margin-top:2px}
.app-balance-card{margin:0 14px 14px;padding:16px;border-radius:14px;background:linear-gradient(135deg,#059669,#064E3B);color:#fff}
.app-balance-label{font-size:11px;opacity:.8}
.app-balance-amount{font-size:24px;font-weight:800;margin-top:2px}
.app-balance-amount span{font-size:14px;opacity:.7}
.app-balance-trend{font-size:11px;margin-top:6px;opacity:.9}
.app-quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:0 14px;margin-bottom:14px}
.app-quick-item{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:10px;color:#475569}
.aqi-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff}
.aqi-icon.vote{background:linear-gradient(135deg,#8B5CF6,#6D28D9)}
.aqi-icon.repair{background:linear-gradient(135deg,#F97316,#EA580C)}
.aqi-icon.help{background:linear-gradient(135deg,#EC4899,#DB2777)}
.aqi-icon.fee{background:linear-gradient(135deg,#3B82F6,#2563EB)}
.app-notice{margin:0 14px;padding:10px 12px;border-radius:10px;background:#FEF3C7;display:flex;align-items:center;gap:8px;font-size:11px;color:#92400E}
.app-notice-tag{background:#F59E0B;color:#fff;padding:2px 8px;border-radius:6px;font-size:10px;font-weight:600}

/* ===== TRUST BAR ===== */
.trust-bar{background:var(--color-white);border-bottom:1px solid var(--color-border)}
.trust-bar-inner{display:flex;align-items:center;justify-content:space-around;padding:28px 24px;flex-wrap:wrap;gap:16px}
.trust-stat{display:flex;flex-direction:column;align-items:center;gap:2px}
.trust-stat strong{font-size:30px;font-weight:800;color:var(--color-primary);line-height:1}
.trust-stat span{font-size:13px;color:var(--color-text-secondary)}
.trust-divider{width:1px;height:40px;background:var(--color-border)}

/* ===== PROBLEM ===== */
.problem-section{background:var(--color-white)}
.problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.problem-card{
  background:var(--color-bg);border-radius:var(--radius);padding:28px 24px;
  border:1px solid transparent;transition:all .3s cubic-bezier(.4,0,.2,1);
  position:relative;overflow:hidden;
}
.problem-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--color-accent),var(--color-gold));transform:scaleX(0);transform-origin:left;transition:transform .3s}
.problem-card:hover{background:var(--color-white);border-color:var(--color-border);box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.problem-card:hover::before{transform:scaleX(1)}
.problem-emoji{width:52px;height:52px;margin-bottom:14px;line-height:1;display:flex;align-items:center;justify-content:center;background:#FFF7ED;border-radius:14px;flex-shrink:0}
.problem-card h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--color-text)}
.problem-card p{font-size:14px;color:var(--color-text-secondary);line-height:1.7}

/* ===== FEATURES ===== */
.features-section{background:var(--color-bg)}
.feature-row{
  display:flex;align-items:center;gap:60px;margin-bottom:64px;
  background:var(--color-white);border-radius:var(--radius-lg);padding:48px;
  box-shadow:var(--shadow);transition:box-shadow .3s;
}
.feature-row:hover{box-shadow:var(--shadow-lg)}
.feature-row.reverse{flex-direction:row-reverse}
.feature-content{flex:1;min-width:0}
.feature-num{font-size:14px;font-weight:800;color:var(--color-primary);background:var(--color-primary-50);display:inline-block;padding:4px 12px;border-radius:8px;margin-bottom:16px;letter-spacing:.05em}
.feature-tag-row{margin-bottom:8px}
.feature-pill{font-size:12px;font-weight:600;color:var(--color-accent);background:var(--color-accent-light);padding:4px 12px;border-radius:50px}
.feature-content h3{font-size:26px;font-weight:800;margin-bottom:14px;letter-spacing:-.02em}
.feature-content p{font-size:15px;color:var(--color-text-secondary);line-height:1.75;margin-bottom:18px}
.feature-tags{display:flex;flex-wrap:wrap;gap:8px}
.feature-tags li{font-size:13px;padding:6px 14px;background:var(--color-bg);border-radius:8px;color:var(--color-text-secondary);font-weight:500;transition:all .2s}
.feature-tags li:hover{background:var(--color-primary-50);color:var(--color-primary)}
.feature-mockup{flex-shrink:0;display:flex;justify-content:center}

/* Feature Mockup内容 */
.mock-title{padding:24px 18px 4px;font-size:16px;font-weight:800;color:#0F172A}
.mock-meta{padding:0 18px 16px;font-size:11px;color:#64748B}
.mock-vote-bar{padding:0 18px 10px}
.mvb-label{display:flex;justify-content:space-between;font-size:12px;color:#475569;margin-bottom:4px}
.mvb-label strong{color:#0F172A}
.mvb-track{height:8px;background:#E2E8F0;border-radius:4px;overflow:hidden}
.mvb-fill{height:100%;background:linear-gradient(90deg,#10B981,#059669);border-radius:4px;transition:width 1s}
.mvb-fill.red{background:linear-gradient(90deg,#EF4444,#DC2626)}
.mvb-fill.gray{background:#94A3B8}
.mock-chain{margin:8px 18px;padding:8px 12px;background:#ECFDF5;border-radius:8px;font-size:11px;color:#065F46;display:flex;align-items:center;gap:6px}
.chain-icon{font-size:14px}
.mock-btn{margin:8px 18px 16px;padding:12px;text-align:center;background:linear-gradient(135deg,#10B981,#059669);color:#fff;border-radius:10px;font-size:13px;font-weight:600}
.mock-status{margin:0 18px 10px;padding:6px 12px;border-radius:8px;font-size:11px;font-weight:600;display:inline-block}
.mock-status.urgent{background:#FEE2E2;color:#DC2626}
.mock-timeline{padding:0 18px 12px}
.mt-item{display:flex;align-items:center;gap:8px;font-size:12px;color:#94A3B8;padding:5px 0}
.mt-item.done{color:#059669}
.mt-item.active{color:#F97316;font-weight:600}
.mt-dot{width:8px;height:8px;border-radius:50%;background:#E2E8F0;flex-shrink:0}
.mt-item.done .mt-dot{background:#059669}
.mt-item.active .mt-dot{background:#F97316;box-shadow:0 0 0 4px rgba(249,115,22,.2)}
.mock-rating{margin:8px 18px 16px;padding:10px 12px;background:#F8FAFC;border-radius:8px;display:flex;justify-content:space-between;font-size:12px}
.stars{color:#F59E0B;letter-spacing:2px}
.mock-help-item{display:flex;align-items:center;gap:10px;padding:8px 18px}
.mhi-avatar{width:32px;height:32px;border-radius:50%;background:#DBEAFE;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#1D4ED8;flex-shrink:0}
.mhi-info{flex:1;min-width:0}
.mhi-name{font-size:12px;font-weight:600;color:#0F172A}
.mhi-credit{font-size:10px;color:#64748B}
.mhi-price{font-size:13px;font-weight:700;color:#059669}
.mock-insured{margin:10px 18px 16px;padding:8px 12px;background:#FFFBEB;border-radius:8px;font-size:11px;color:#92400E;text-align:center}
.mock-balance{margin:0 18px 12px;padding:14px;border-radius:12px;background:linear-gradient(135deg,#064E3B,#047857);color:#fff}
.mb-label{font-size:11px;opacity:.8}
.mb-amount{font-size:22px;font-weight:800;margin-top:2px}
.mock-flow{padding:0 18px 10px}
.mf-item{display:flex;align-items:center;gap:8px;font-size:12px;padding:5px 0;color:#475569}
.mf-tag{font-size:10px;padding:2px 6px;border-radius:4px;font-weight:600}
.mf-item.in .mf-tag{background:#D1FAE5;color:#065F46}
.mf-item.out .mf-tag{background:#FEE2E2;color:#991B1B}
.mf-item strong{margin-left:auto}
.mf-item.in strong{color:#059669}
.mf-item.out strong{color:#DC2626}
.mock-stages{margin:8px 18px 16px;padding:10px 12px;background:#F8FAFC;border-radius:8px}
.ms-label{font-size:11px;color:#475569;margin-bottom:6px}
.ms-bar{height:6px;background:#E2E8F0;border-radius:3px;overflow:hidden;margin-bottom:6px}
.ms-fill{height:100%;background:linear-gradient(90deg,#10B981,#059669);border-radius:3px}
.ms-steps{display:flex;justify-content:space-between;font-size:10px}
.ms-steps span{color:#94A3B8}
.ms-steps .done{color:#059669;font-weight:600}
.ms-steps .active{color:#F97316;font-weight:600}

/* ===== ROLES ===== */
.roles-section{background:var(--color-white)}
.roles-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.role-card{
  background:var(--color-bg);border-radius:var(--radius);padding:24px 18px;text-align:center;
  border:2px solid transparent;transition:all .3s;cursor:default;
}
.role-card:hover{border-color:var(--rc);background:var(--color-white);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.role-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 14px;
  display:flex;align-items:center;justify-content:center;
  color:var(--rc);
  background:#f1f5f9;
  background:color-mix(in srgb,var(--rc) 12%,white);transition:all .3s;
}
.role-card:hover .role-icon{background:var(--rc);color:#fff;transform:scale(1.1) rotate(-5deg)}
.role-card h4{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--color-text)}
.role-card p{font-size:12px;color:var(--color-text-secondary);line-height:1.5}

/* ===== STEPS ===== */
.steps-section{background:linear-gradient(180deg,var(--color-bg-warm),var(--color-bg))}
.steps-grid{display:flex;align-items:center;justify-content:center;gap:20px;max-width:900px;margin:0 auto}
.step-card{
  flex:1;background:var(--color-white);border-radius:var(--radius-lg);padding:36px 28px;text-align:center;
  box-shadow:var(--shadow);transition:all .3s;position:relative;
}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.step-num{
  position:absolute;top:-18px;left:50%;transform:translateX(-50%);
  width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#10B981,#059669);
  color:#fff;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(5,150,105,.4);
}
.step-emoji{width:64px;height:64px;margin:12px auto 14px;display:flex;align-items:center;justify-content:center;background:var(--color-primary-50);border-radius:16px}
.step-card h4{font-size:18px;font-weight:700;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--color-text-secondary);line-height:1.6}
.step-arrow{font-size:28px;color:var(--color-primary);font-weight:300;flex-shrink:0}

/* ===== PROOF ===== */
.proof-section{background:var(--color-white)}
.big-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px}
.big-stat{text-align:center;padding:32px 16px;background:linear-gradient(180deg,var(--color-primary-50),transparent);border-radius:var(--radius)}
.big-stat strong{font-size:48px;font-weight:900;color:var(--color-primary);line-height:1;display:inline-block}
.bs-unit{font-size:20px;font-weight:700;color:var(--color-primary)}
.big-stat p{font-size:14px;color:var(--color-text-secondary);margin-top:8px}
.testimonials-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.testimonial-card{
  background:var(--color-bg);border-radius:var(--radius);padding:28px;position:relative;
  border:1px solid var(--color-border);transition:all .3s;
}
.testimonial-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);background:var(--color-white)}
.quote-mark{font-size:60px;color:var(--color-primary-light);font-family:Georgia,serif;line-height:.5;position:absolute;top:20px;left:20px}
.testimonial-card p{font-size:15px;line-height:1.75;color:var(--color-text);margin:20px 0 18px;position:relative;z-index:1}
.testimonial-author{display:flex;align-items:center;gap:12px}
.author-avatar{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.testimonial-author strong{display:block;font-size:14px}
.testimonial-author span{font-size:13px;color:var(--color-text-secondary)}

/* ===== FAQ ===== */
.faq-section{background:var(--color-bg)}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--color-white);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;border:1px solid var(--color-border);transition:box-shadow .3s}
.faq-item[open]{box-shadow:var(--shadow)}
.faq-item summary{padding:18px 24px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:15px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{font-size:22px;font-weight:300;color:var(--color-primary);transition:transform .3s}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item p{padding:0 24px 18px;font-size:14px;color:var(--color-text-secondary);line-height:1.75}

/* ===== DOWNLOAD ===== */
.download-section{position:relative;overflow:hidden;background:linear-gradient(160deg,#064E3B,#047857);color:#fff;padding:90px 0}
.download-blob{position:absolute;width:600px;height:600px;border-radius:50%;background:#10B981;filter:blur(100px);opacity:.2;top:-200px;right:-100px}
.download-inner{display:flex;align-items:center;gap:80px;position:relative;z-index:1}
.download-left{flex:1}
.download-badge{display:inline-block;background:rgba(255,255,255,.15);padding:6px 16px;border-radius:50px;font-size:13px;margin-bottom:20px;border:1px solid rgba(255,255,255,.2)}
.download-left h2{font-size:clamp(30px,4vw,42px);font-weight:800;line-height:1.25;margin-bottom:16px;letter-spacing:-.02em}
.download-left>p{font-size:16px;opacity:.85;line-height:1.75;margin-bottom:28px;max-width:480px}
.download-buttons{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.download-trust{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;opacity:.75}
.download-right{text-align:center;flex-shrink:0}
.qr-box{width:180px;height:180px;border:3px solid rgba(255,255,255,.2);border-radius:var(--radius);display:inline-flex;align-items:center;justify-content:center;background:#fff;margin-bottom:14px;box-shadow:0 12px 40px rgba(0,0,0,.3)}
.qr-tip{font-size:15px;font-weight:600}
.qr-sub{font-size:13px;opacity:.7;margin-top:4px}

/* ===== FOOTER ===== */
.site-footer{background:#0F172A;color:#fff;padding:64px 0 0}
.footer-top{display:flex;gap:64px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:24px}
.footer-brand{flex:1;max-width:340px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo h3{font-size:19px;font-weight:700}
.footer-brand p{font-size:14px;opacity:.55;line-height:1.75}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;opacity:.8}
.footer-col a{display:block;font-size:14px;opacity:.5;margin-bottom:10px;transition:opacity .2s}
.footer-col a:hover{opacity:1;color:#34D399}
.footer-bottom{display:flex;justify-content:space-between;font-size:13px;opacity:.4;padding-bottom:24px}

/* ===== MOBILE BAR ===== */
.fixed-bottom-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:999;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 -4px 20px rgba(0,0,0,.1);padding:12px 16px}
.bottom-btn{display:block;width:100%;padding:14px;text-align:center;font-weight:700;border-radius:12px;font-size:16px}
.bottom-btn.primary{background:linear-gradient(135deg,#10B981,#059669);color:#fff;box-shadow:0 4px 14px rgba(5,150,105,.3)}

/* ===== CONTENT PAGE (关于我们/联系/法律等) ===== */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#064E3B 0%,#065F46 40%,#047857 100%);
  color:#fff;padding:72px 24px 64px;text-align:center;
}
.page-hero .ph-blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.3}
.page-hero .ph-blob.b1{width:400px;height:400px;background:#10B981;top:-120px;left:-80px}
.page-hero .ph-blob.b2{width:320px;height:320px;background:#F97316;bottom:-100px;right:-60px;opacity:.18}
.page-hero-inner{position:relative;z-index:1;max-width:780px;margin:0 auto}
.page-hero .ph-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);padding:7px 18px;border-radius:50px;font-size:13px;font-weight:500;margin-bottom:20px;border:1px solid rgba(255,255,255,.15)}
.page-hero h1{font-size:clamp(30px,4.5vw,46px);font-weight:900;line-height:1.2;margin-bottom:16px;letter-spacing:-.02em}
.page-hero .ph-sub{font-size:16px;opacity:.82;line-height:1.7;max-width:600px;margin:0 auto}
.page-hero .ph-breadcrumb{font-size:13px;opacity:.6;margin-bottom:24px}
.page-hero .ph-breadcrumb a{opacity:.7}
.page-hero .ph-breadcrumb a:hover{opacity:1}

.article-section{padding:64px 0 80px;background:var(--color-white)}
.article-wrap{max-width:780px;margin:0 auto;padding:0 24px}
.article-wrap h2{font-size:26px;font-weight:800;color:var(--color-text);margin:48px 0 16px;letter-spacing:-.01em;line-height:1.35}
.article-wrap h2:first-child{margin-top:0}
.article-wrap h3{font-size:19px;font-weight:700;color:var(--color-text);margin:32px 0 12px}
.article-wrap p{font-size:16px;line-height:1.9;color:var(--color-text-secondary);margin-bottom:18px}
.article-wrap strong{color:var(--color-text);font-weight:700}
.article-wrap blockquote{
  margin:28px 0;padding:24px 28px;
  background:var(--color-primary-50);border-left:4px solid var(--color-primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:16px;line-height:1.85;color:var(--color-primary-dark);font-style:italic;
}
.article-wrap blockquote p{color:inherit;margin-bottom:0;font-style:inherit}
.article-wrap ul,.article-wrap ol{margin:16px 0 20px;padding-left:24px}
.article-wrap li{font-size:16px;line-height:1.9;color:var(--color-text-secondary);margin-bottom:8px}
.article-wrap ul li::marker{color:var(--color-primary)}
.article-wrap ol li::marker{color:var(--color-primary);font-weight:700}
.article-wrap a{color:var(--color-primary);text-decoration:underline;text-underline-offset:2px}
.article-wrap a:hover{color:var(--color-primary-dark)}

/* 关于我们：故事卡片 */
.story-card{
  background:var(--color-bg);border:1px solid var(--color-border);
  border-radius:var(--radius);padding:32px;margin:28px 0;position:relative;overflow:hidden;
}
.story-card .sc-label{display:inline-block;font-size:12px;font-weight:700;color:var(--color-accent);letter-spacing:.05em;text-transform:uppercase;margin-bottom:10px}
.story-card p:last-child{margin-bottom:0}
.story-card.highlight{background:linear-gradient(135deg,var(--color-primary-50),var(--color-bg-warm));border-color:var(--color-primary-light)}

.timeline{position:relative;margin:32px 0;padding-left:28px}
.timeline::before{content:'';position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--color-primary),var(--color-primary-light))}
.tl-item{position:relative;margin-bottom:28px}
.tl-item::before{content:'';position:absolute;left:-28px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--color-primary);border:3px solid var(--color-white);box-shadow:0 0 0 2px var(--color-primary)}
.tl-year{font-size:13px;font-weight:700;color:var(--color-primary);margin-bottom:4px}
.tl-title{font-size:17px;font-weight:700;color:var(--color-text);margin-bottom:6px}
.tl-desc{font-size:15px;color:var(--color-text-secondary);line-height:1.75}

.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:32px 0}
.value-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);padding:24px;text-align:center;transition:all .3s}
.value-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);background:var(--color-white)}
.value-card .vc-icon{font-size:32px;margin-bottom:12px}
.value-card h4{font-size:16px;font-weight:700;margin-bottom:8px}
.value-card p{font-size:14px;line-height:1.7;color:var(--color-text-secondary);margin:0}

.cta-banner{
  margin:48px 0 0;padding:40px;border-radius:var(--radius-lg);text-align:center;
  background:linear-gradient(135deg,#064E3B,#047857);color:#fff;position:relative;overflow:hidden;
}
.cta-banner .ctab-blob{position:absolute;width:300px;height:300px;border-radius:50%;background:#10B981;filter:blur(80px);opacity:.25;top:-100px;right:-50px}
.cta-banner h2{font-size:26px;font-weight:800;margin-bottom:12px;position:relative;z-index:1}
.cta-banner p{font-size:15px;opacity:.85;line-height:1.75;max-width:520px;margin:0 auto 24px;position:relative;z-index:1}
.cta-banner .btn{position:relative;z-index:1}

/* 联系我们 */
.contact-section{padding:72px 0;background:var(--color-white)}
.contact-card{
  max-width:560px;margin:0 auto;text-align:center;
  background:var(--color-bg);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:48px 40px;
}
.contact-card .cc-icon{
  width:72px;height:72px;margin:0 auto 24px;border-radius:50%;
  background:linear-gradient(135deg,var(--color-primary-50),var(--color-primary-light));
  display:flex;align-items:center;justify-content:center;font-size:32px;
}
.contact-card h2{font-size:24px;font-weight:800;margin-bottom:12px}
.contact-card p{font-size:15px;color:var(--color-text-secondary);line-height:1.75;margin-bottom:28px}
.contact-email{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:700;color:var(--color-primary);
  background:var(--color-primary-50);padding:16px 32px;border-radius:50px;
  border:2px solid var(--color-primary-light);transition:all .3s;
}
.contact-email:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-glow)}

/* 加入我们：岗位卡 */
.job-card{
  background:var(--color-bg);border:1px solid var(--color-border);
  border-radius:var(--radius);padding:28px;margin-bottom:20px;transition:all .3s;
}
.job-card:hover{box-shadow:var(--shadow);border-color:var(--color-primary-light);transform:translateX(4px)}
.job-card .jc-head{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.job-card h3{font-size:18px;font-weight:700;color:var(--color-text)}
.job-card .jc-tags{display:flex;gap:8px;flex-wrap:wrap}
.job-card .jc-tag{font-size:12px;font-weight:600;padding:4px 12px;border-radius:50px;background:var(--color-primary-50);color:var(--color-primary)}
.job-card .jc-tag.accent{background:var(--color-accent-light);color:var(--color-accent)}
.job-card p{font-size:14px;line-height:1.75;color:var(--color-text-secondary);margin-bottom:12px}
.job-card .jc-req{font-size:14px;color:var(--color-text-secondary);line-height:1.8}
.job-card .jc-req li{margin-bottom:4px}

/* 法律文档 */
.legal-section{padding:56px 0 80px;background:var(--color-white)}
.legal-wrap{max-width:820px;margin:0 auto;padding:0 24px}
.legal-wrap .legal-meta{font-size:13px;color:var(--color-text-tertiary);margin-bottom:32px;padding-bottom:20px;border-bottom:1px solid var(--color-border)}
.legal-wrap h2{font-size:22px;font-weight:800;color:var(--color-text);margin:40px 0 14px;letter-spacing:-.01em}
.legal-wrap h2:first-of-type{margin-top:0}
.legal-wrap h3{font-size:16px;font-weight:700;color:var(--color-text);margin:24px 0 10px}
.legal-wrap p{font-size:15px;line-height:1.85;color:var(--color-text-secondary);margin-bottom:14px}
.legal-wrap ul,.legal-wrap ol{margin:12px 0 18px;padding-left:22px}
.legal-wrap li{font-size:15px;line-height:1.85;color:var(--color-text-secondary);margin-bottom:6px}
.legal-wrap ul li::marker{color:var(--color-primary)}
.legal-wrap ol li::marker{color:var(--color-primary);font-weight:700}
.legal-wrap strong{color:var(--color-text);font-weight:700}
.legal-wrap .legal-callout{background:var(--color-bg-warm);border:1px solid var(--color-accent-light);border-radius:var(--radius-sm);padding:16px 20px;margin:20px 0;font-size:14px;color:var(--color-text-secondary);line-height:1.75}
.legal-wrap table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.legal-wrap th,.legal-wrap td{border:1px solid var(--color-border);padding:10px 14px;text-align:left}
.legal-wrap th{background:var(--color-primary-50);color:var(--color-text);font-weight:700}
.legal-wrap td{color:var(--color-text-secondary)}

@media (max-width:640px){
  .value-grid{grid-template-columns:1fr}
  .article-wrap h2{font-size:22px}
  .contact-card{padding:32px 24px}
  .contact-email{font-size:16px;padding:14px 24px}
  .cta-banner{padding:32px 24px}
  .story-card{padding:24px 20px}
}

/* ===== REVEAL ANIMATION ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1)}
.reveal.in-view{opacity:1;transform:translateY(0)}

/* ===== KEYFRAMES ===== */
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-30px)}}
@keyframes floatPhone{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(52,211,153,.6)}50%{box-shadow:0 0 0 8px rgba(52,211,153,0)}}

/* ===== 无障碍：尊重"减少动画"系统偏好 ===== */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1 !important;transform:none !important}
  .hero-phone,.hero-blob,.badge-dot{animation:none !important}
}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .nav-links,.header-cta{display:none}
  .hamburger{display:flex}
  .nav-links.open{display:flex;position:absolute;top:var(--header-height);left:0;right:0;background:#fff;flex-direction:column;padding:20px 24px;gap:16px;box-shadow:var(--shadow-lg);border-bottom:1px solid var(--color-border)}
  .hero-section{flex-direction:column;text-align:center;padding:60px 24px 80px}
  .hero-content{max-width:100%}
  .hero-subtitle{margin-left:auto;margin-right:auto}
  .hero-cta-group,.hero-trust{justify-content:center}
  .hero-phone{margin-top:20px}
  .problem-grid{grid-template-columns:repeat(2,1fr)}
  .feature-row{flex-direction:column !important;gap:32px;padding:32px}
  .roles-grid{grid-template-columns:repeat(3,1fr)}
  .big-stats{grid-template-columns:repeat(2,1fr)}
  .download-inner{flex-direction:column;text-align:center;gap:40px}
  .download-left>p{margin-left:auto;margin-right:auto}
  .download-buttons{justify-content:center}
  .download-trust{justify-content:center}
  .trust-bar-inner{gap:12px}
  .trust-divider{display:none}
}

@media (max-width:640px){
  :root{--header-height:56px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:40px}
  .section-title{font-size:24px}
  .hero-title{font-size:30px}
  .hero-subtitle{font-size:15px}
  .hero-cta-group{flex-direction:column;align-items:stretch}
  .hero-trust{flex-direction:column;gap:8px;align-items:center}
  .problem-grid{grid-template-columns:1fr}
  .feature-row{padding:24px;margin-bottom:40px}
  .feature-content h3{font-size:21px}
  .roles-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{flex-direction:column}
  .step-arrow{transform:rotate(90deg)}
  .big-stats{grid-template-columns:1fr 1fr;gap:12px}
  .big-stat strong{font-size:36px}
  .testimonials-grid{grid-template-columns:1fr}
  .footer-top{flex-direction:column;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .fixed-bottom-bar{display:block}
  body{padding-bottom:72px}
  .phone-frame{width:240px}
  .phone-frame.small{width:210px}
}