@charset "UTF-8";

/* ============================================================
   黑料网在线 · 1112321061.net
   Design System : "求证档案 / VERIFIED ARCHIVE"
   风格：纸感新粗野主义 —— 暖米白底 + 硬描边 + 荧光批注
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root{
  --paper:      #faf7f0;
  --paper-2:    #f1efe2;
  --paper-3:    #ecead9;
  --ink:        #241c4d;
  --ink-2:      #5a5378;
  --ink-3:      #8e88a6;
  --lime:       #d8f24a;
  --lime-deep:  #a8cc1b;
  --violet:     #5b47f5;
  --violet-soft:#e6e2ff;
  --coral:      #ff5c39;
  --coral-soft: #ffe4dc;
  --cream:      #fff6d9;

  --line:       2px solid var(--ink);
  --line-soft:  1px solid rgba(36,28,77,.14);
  --hard:       6px 6px 0 var(--ink);
  --hard-sm:    4px 4px 0 var(--ink);
  --hard-xs:    3px 3px 0 var(--ink);

  --font: system-ui, -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --mono: ui-monospace, 'SFMono-Regular', Menlo, Consolas, 'Courier New', monospace;

  --ease: cubic-bezier(.22,.9,.25,1);
}

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  font-family: var(--font);
  overflow-x:hidden;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(91,71,245,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91,71,245,.055) 1px, transparent 1px);
  background-size: 34px 34px;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}

body::before{
  content:"";
  position:fixed; inset:0;
  background: radial-gradient(120% 90% at 50% -20%, rgba(216,242,74,.35), transparent 62%);
  pointer-events:none;
  z-index:0;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }

::selection{ background: var(--lime); color: var(--ink); }

/* ---------- 核心布局 ---------- */
.container { max-width:1200px; margin:0 auto; padding:0 24px; position:relative; z-index:1; }

.section{
  padding:80px 0;
  position:relative;
}

.section:nth-child(even){ background: var(--paper-2); }

.section + .section{ border-top: var(--line-soft); }

/* ---------- 导航 ---------- */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(250,247,240,.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--ink);
}
.site-header::after{
  content:"";
  position:absolute; left:0; bottom:-3px; width:100%; height:3px;
  background: repeating-linear-gradient(90deg, var(--lime) 0 24px, transparent 24px 48px);
  opacity:.9;
}

.header-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:68px; max-width:1200px; margin:0 auto; padding:0 24px;
}

.logo {
  display:flex; align-items:center; gap:10px;
  font-weight:800; font-size:1.15rem; letter-spacing:-.01em;
  text-decoration:none; color:inherit;
}
.logo-icon {
  width:36px; height:36px; border-radius:6px;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem; font-weight:900;
  background: var(--lime);
  border: var(--line);
  box-shadow: var(--hard-xs);
  color: var(--ink);
  transform: rotate(-4deg);
  transition: transform .25s var(--ease);
}
.logo:hover .logo-icon{ transform: rotate(4deg) scale(1.05); }

.main-nav { display:flex; align-items:center; gap:26px; list-style:none; }

.main-nav a {
  text-decoration:none; font-size:.9rem; font-weight:600;
  color: var(--ink);
  position:relative; padding:4px 0;
  transition:.2s var(--ease);
}
.main-nav a::after{
  content:""; position:absolute; left:0; bottom:0; height:3px; width:0;
  background: var(--violet); border-radius:2px;
  transition: width .28s var(--ease);
}
.main-nav a:hover::after{ width:100%; }
.main-nav a:hover{ color: var(--violet); }

.nav-cta {
  padding:9px 22px;
  border-radius:3px;
  color: #fff !important;
  font-weight:800;
  background: var(--violet);
  border: var(--line);
  box-shadow: var(--hard-xs);
  transition: .18s var(--ease);
}
.nav-cta::after{ display:none; }
.nav-cta:hover{
  transform: translate(-2px,-2px);
  box-shadow: 5px 5px 0 var(--ink);
  color:#fff !important;
}

.menu-toggle {
  display:none;
  width:42px; height:38px;
  align-items:center; justify-content:center;
  background: var(--lime);
  border: var(--line);
  border-radius:4px;
  box-shadow: var(--hard-xs);
  font-size:1.1rem; font-weight:900; color:var(--ink);
  cursor:pointer;
}

/* ---------- Hero ---------- */
.hero {
  min-height:70vh; display:flex; align-items:center;
  padding-top: 130px; padding-bottom: 70px;
  position:relative;
  overflow:hidden;
}

.hero::before{
  content:"证据 · 记录 · 求证";
  position:absolute; top:120px; right:-40px;
  font-family: var(--mono);
  font-size: .78rem; letter-spacing: .55em;
  color: rgba(36,28,77,.22);
  writing-mode: vertical-rl;
  pointer-events:none;
}

.hero-content { max-width:720px; position:relative; }

.hero-eyebrow {
  display:inline-block; font-size:.78rem; font-weight:800;
  letter-spacing:.16em; text-transform:uppercase;
  padding:6px 16px; border-radius:999px; margin-bottom:22px;
  background: var(--lime);
  border: var(--line);
  box-shadow: var(--hard-xs);
  color: var(--ink);
  transform: rotate(-1.5deg);
}

.hero h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.2rem);
  line-height:1.08;
  font-weight:900;
  letter-spacing:-.035em;
  margin-bottom:22px;
}
.hero h1::after{
  content:"";
  display:block;
  width:96px; height:10px;
  margin-top:20px;
  background: var(--violet);
  border: var(--line);
  border-radius:2px;
}

.hero p {
  font-size:1.08rem;
  color: var(--ink-2);
  max-width:560px; margin-bottom:34px;
}

.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }

.hero-image {
  border-radius:4px; overflow:hidden;
  border: var(--line);
  box-shadow: var(--hard);
  background:#fff;
}
.hero-image img { width:100%; height:auto; }

/* ---------- 按钮 ---------- */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 30px; border-radius:3px;
  font-weight:800; font-size:.95rem; letter-spacing:.02em;
  cursor:pointer; text-decoration:none; border:none;
  transition:.18s var(--ease);
  position:relative;
}

.btn-primary {
  color:#fff;
  background: var(--violet);
  border: var(--line);
  box-shadow: var(--hard-sm);
}
.btn-primary:hover{
  transform: translate(-2px,-2px);
  box-shadow: 8px 8px 0 var(--ink);
  background: #6e5cff;
}

.btn-outline {
  background: #fff;
  color: var(--ink);
  border: var(--line);
  box-shadow: var(--hard-sm);
}
.btn-outline:hover{
  transform: translate(-2px,-2px);
  box-shadow: 8px 8px 0 var(--ink);
  background: var(--lime);
}

/* ---------- 标签 / 标题 ---------- */
.section-label {
  display:inline-block; font-size:.74rem; font-weight:800;
  letter-spacing:.32em; text-transform:uppercase;
  margin-bottom:14px;
  padding:5px 14px;
  color: var(--ink);
  background: var(--coral-soft);
  border: var(--line);
  border-radius:999px;
  box-shadow: var(--hard-xs);
  transform: rotate(-1deg);
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight:900;
  letter-spacing:-.03em;
  line-height:1.2;
  margin-bottom:16px;
}
.section-title::after{
  content:"";
  display:block;
  width:68px; height:8px;
  margin-top:16px;
  background: var(--lime);
  border: var(--line);
  border-radius:2px;
}

.section-desc {
  max-width:600px;
  color: var(--ink-2);
  margin-bottom:44px;
  font-size:1rem;
}

.text-center .section-title::after,
.text-center.section-title::after{ margin-left:auto; margin-right:auto; }
.text-center .section-desc{ margin-left:auto; margin-right:auto; }

/* ---------- 卡片网格 ---------- */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(260px,1fr));
  gap:26px;
  counter-reset: card-counter;
}

.category-card {
  border-radius:4px;
  padding:28px;
  border: var(--line);
  background:#fff;
  box-shadow: var(--hard-sm);
  transition:.22s var(--ease);
  position:relative;
  overflow:hidden;
  counter-increment: card-counter;
}
.category-card:nth-child(4n+1){ background:#fff; }
.category-card:nth-child(4n+2){ background: var(--violet-soft); }
.category-card:nth-child(4n+3){ background: var(--cream); }
.category-card:nth-child(4n+4){ background: var(--coral-soft); }

.category-card::after{
  content: "0" counter(card-counter);
  position:absolute; top:14px; right:16px;
  font-family: var(--mono);
  font-size:2.6rem; font-weight:700; line-height:1;
  color: rgba(36,28,77,.10);
  pointer-events:none;
}

.category-card:hover {
  transform: translate(-4px,-4px);
  box-shadow: 10px 10px 0 var(--ink);
}

.card-icon {
  width:50px; height:50px; border-radius:6px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.35rem;
  background: var(--lime);
  border: var(--line);
  box-shadow: var(--hard-xs);
}
.category-card:nth-child(4n+3) .card-icon{ background: var(--violet); color:#fff; }
.category-card:nth-child(4n+4) .card-icon{ background: var(--coral); color:#fff; }

.category-card h3{
  font-size:1.12rem; font-weight:800; letter-spacing:-.01em;
  margin-bottom:8px;
}
.category-card p{
  font-size:.92rem; color: var(--ink-2); margin-bottom:16px;
}

.card-link {
  font-weight:800; font-size:.85rem;
  text-decoration:none;
  color: var(--violet);
  border-bottom: 2px solid var(--violet);
  padding-bottom:2px;
  transition:.2s var(--ease);
  display:inline-block;
}
.card-link:hover{
  color: var(--ink);
  border-color: var(--ink);
  transform: translateX(4px);
}

/* ---------- 特性块 ---------- */
.feature-block {
  display:grid; grid-template-columns:1fr 1fr;
  gap:56px; align-items:center;
}

.feature-image {
  border-radius:4px; overflow:hidden;
  border: var(--line);
  box-shadow: var(--hard);
  background:#fff;
  transform: rotate(-1deg);
  transition: transform .3s var(--ease);
}
.feature-image:hover{ transform: rotate(0deg); }
.feature-image img { width:100%; height:auto; }

.feature-text { }
.feature-text h3{
  font-size:1.6rem; font-weight:900; letter-spacing:-.02em;
  margin-bottom:14px;
}
.feature-text p{ color: var(--ink-2); margin-bottom:20px; }

.feature-list { list-style:none; }
.feature-list li {
  padding:8px 0;
  display:flex; align-items:flex-start; gap:12px;
  font-weight:600; font-size:.96rem;
  border-bottom: 1px dashed rgba(36,28,77,.16);
}
.feature-list li::before {
  content:'✓';
  flex:0 0 24px;
  width:24px; height:24px;
  display:inline-flex; align-items:center; justify-content:center;
  background: var(--lime);
  border: var(--line);
  border-radius:4px;
  font-weight:900; font-size:.78rem;
  color: var(--ink);
  line-height:1;
}

/* ---------- 数据条 ---------- */
.stats-bar {
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:24px; text-align:center;
}

.stat-item {
  padding:28px 20px;
  border-radius:4px;
  border: var(--line);
  background:#fff;
  box-shadow: var(--hard-sm);
  transition:.22s var(--ease);
}
.stat-item:hover{
  transform: translate(-3px,-3px);
  box-shadow: 8px 8px 0 var(--ink);
  background: var(--cream);
}
.stat-item:nth-child(2){ background: var(--violet-soft); }
.stat-item:nth-child(3){ background: var(--coral-soft); }

.stat-number {
  font-family: var(--mono);
  font-size:2.3rem; font-weight:800; line-height:1;
  letter-spacing:-.04em;
  color: var(--violet);
}
.stat-item:nth-child(2) .stat-number{ color: var(--ink); }
.stat-item:nth-child(3) .stat-number{ color: var(--coral); }
.stat-item:nth-child(4) .stat-number{ color: var(--lime-deep); }

.stat-label {
  font-size:.86rem; font-weight:600;
  color: var(--ink-2);
  margin-top:10px;
  letter-spacing:.06em;
}

/* ---------- 内容墙 ---------- */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(280px,1fr));
  gap:26px;
}

.content-wall-item {
  border-radius:4px; overflow:hidden;
  border: var(--line);
  background:#fff;
  box-shadow: var(--hard-sm);
  transition:.22s var(--ease);
  position:relative;
}
.content-wall-item::before{
  content:"";
  position:absolute; top:0; left:0; width:100%; height:6px;
  background: var(--lime);
  z-index:2;
  transition:.28s var(--ease);
}
.content-wall-item:nth-child(3n+2)::before{ background: var(--violet); }
.content-wall-item:nth-child(3n+3)::before{ background: var(--coral); }

.content-wall-item:hover {
  transform: translate(-4px,-4px);
  box-shadow: 10px 10px 0 var(--ink);
}
.content-wall-item:hover::before{ height:10px; }

.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  border-bottom: var(--line);
  filter: saturate(1.05) contrast(1.02);
}

.content-wall-body { padding:22px; }
.content-wall-body h3{
  font-size:1.05rem; font-weight:800; letter-spacing:-.01em;
  margin-bottom:8px;
}
.content-wall-body p{
  font-size:.9rem; color: var(--ink-2); line-height:1.7;
}

/* ---------- FAQ ---------- */
.faq-list { max-width:800px; margin:0 auto; }

.faq-item {
  border: var(--line);
  border-radius:4px;
  margin-bottom:12px;
  overflow:hidden;
  cursor:pointer;
  background:#fff;
  box-shadow: var(--hard-xs);
  transition:.2s var(--ease);
}
.faq-item:hover{
  transform: translate(-2px,-2px);
  box-shadow: 5px 5px 0 var(--ink);
  background: var(--cream);
}

.faq-item .faq-question {
  padding:18px 22px;
  font-weight:800; font-size:.98rem;
  display:flex; justify-content:space-between; align-items:center; gap:16px;
  letter-spacing:-.01em;
}
.faq-item .faq-question::after{
  content:"＋";
  flex:0 0 26px;
  width:26px; height:26px;
  display:inline-flex; align-items:center; justify-content:center;
  background: var(--lime);
  border: var(--line);
  border-radius:50%;
  font-size:.9rem; font-weight:900; line-height:1;
  transition: transform .25s var(--ease);
}
.faq-item.open .faq-question::after{
  content:"－";
  background: var(--coral);
  color:#fff;
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding:0 22px 20px;
  display:none;
  color: var(--ink-2);
  font-size:.94rem;
  border-left: 4px solid var(--lime);
  margin-left:22px;
  padding-left:18px;
  padding-top:2px;
}

.faq-item.open .faq-answer { display:block; }
.faq-item.open{
  background:#fff;
  box-shadow: 6px 6px 0 var(--ink);
  transform: translate(-2px,-2px);
}

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  padding:60px 32px;
  text-align:center;
  border-radius:4px;
  color: var(--ink);
  border: var(--line);
  box-shadow: var(--hard);
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.35) 0 14px, transparent 14px 28px),
    linear-gradient(120deg, var(--lime) 0%, #c8ef7a 55%, #ffd94a 100%);
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:"ARCHIVE / 求证";
  position:absolute; bottom:10px; right:16px;
  font-family: var(--mono);
  font-size:.68rem; letter-spacing:.4em;
  color: rgba(36,28,77,.35);
}

.cta-banner h2 {
  color: var(--ink);
  font-size: clamp(1.6rem,3.4vw,2.4rem);
  font-weight:900; letter-spacing:-.03em;
  margin-bottom:12px;
}
.cta-banner p{
  color: rgba(36,28,77,.78);
  max-width:520px; margin:0 auto 28px;
}

.cta-banner .btn-primary {
  background: var(--ink);
  color:#fff;
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(255,255,255,.85);
}
.cta-banner .btn-primary:hover{
  background: var(--violet);
  box-shadow: 8px 8px 0 rgba(255,255,255,.95);
  transform: translate(-2px,-2px);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding:56px 0 28px;
  background: var(--paper-2);
  border-top: 3px solid var(--ink);
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute; top:0; left:0; width:100%; height:6px;
  background: repeating-linear-gradient(90deg, var(--violet) 0 30px, var(--lime) 30px 60px, var(--coral) 60px 90px);
  opacity:.85;
}

.site-footer .container { padding-top:16px; }

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
}

.footer-brand .logo{ margin-bottom:16px; }
.footer-brand p{
  font-size:.9rem; color: var(--ink-2); max-width:320px;
}

.footer-col h4{
  font-size:.82rem; font-weight:900;
  letter-spacing:.18em; text-transform:uppercase;
  margin-bottom:16px;
  color: var(--ink);
}
.footer-col ul{ list-style:none; }
.footer-col ul li{ margin-bottom:10px; }
.footer-col ul li a{
  text-decoration:none;
  font-size:.9rem; color: var(--ink-2);
  transition:.2s var(--ease);
  display:inline-block;
}
.footer-col ul li a:hover{
  color: var(--violet);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 2px solid rgba(36,28,77,.16);
  margin-top:44px;
  padding-top:22px;
  text-align:center;
  font-size:.82rem;
  color: var(--ink-3);
  letter-spacing:.04em;
}

/* ---------- 工具类 ---------- */
.text-accent { color: var(--violet); }
.text-center { text-align:center; }

.seo-description {
  max-width:600px; margin:0 auto 48px;
  color: var(--ink-2);
  font-size:.98rem;
}

.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px){
  .hero{ padding-top:110px; }
  .feature-block{ gap:36px; }
}

@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }

  .main-nav {
    display:none;
    position:absolute;
    top:68px; left:0; width:100%;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:16px 24px 24px;
    background: var(--paper);
    border-bottom: 3px solid var(--ink);
    box-shadow: var(--hard);
  }
  .main-nav li{ width:100%; border-bottom:1px dashed rgba(36,28,77,.16); }
  .main-nav li:last-child{ border-bottom:none; padding-top:14px; }
  .main-nav a{ display:block; padding:14px 0; font-size:1rem; }
  .nav-cta{ display:inline-flex; }

  .menu-toggle { display:flex; }

  .main-nav.open { display:flex; }

  .section{ padding:56px 0; }
  .hero::before{ display:none; }
  .feature-image{ transform:none; }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar { grid-template-columns:1fr; }

  .footer-grid { grid-template-columns:1fr; }

  .hero-buttons { flex-direction:column; align-items:stretch; }
  .hero-buttons .btn{ justify-content:center; }

  .hero h1{ letter-spacing:-.02em; }
  .cta-banner{ padding:40px 20px; }
}

/* ---------- 动效可达性 ---------- */
@media (prefers-reduced-motion: reduce){
  *{ transition-duration:.01ms !important; animation-duration:.01ms !important; }
  html{ scroll-behavior:auto; }
}