/* ============================================================
   黑料大全 — 档案卷宗 / DOSSIER PRESS 设计系统
   Palette: 米黄档案纸 + 朱红 + 电紫 + 酸绿
   ============================================================ */

:root{
  --paper:#F7F2E6;
  --paper-2:#EFE7D4;
  --paper-3:#FFFFFF;
  --ink:#14110E;
  --ink-soft:#5C5548;
  --red:#E8321F;
  --violet:#4B2BD6;
  --acid:#CDF23B;
  --cyan:#00A9BE;

  --bd:2px solid var(--ink);
  --sh:6px 6px 0 var(--ink);
  --sh-sm:3px 3px 0 var(--ink);
  --sh-lg:10px 10px 0 var(--ink);
  --r:6px;
  --r-sm:3px;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html{
  scroll-behavior:smooth;
  scroll-padding-top:88px;
  -webkit-text-size-adjust:100%;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,17,14,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20,17,14,.05) 1px, transparent 1px);
  background-size:34px 34px;
  color:var(--ink);
  line-height:1.65;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

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

::-webkit-scrollbar{ width:12px; height:12px; }
::-webkit-scrollbar-track{ background:var(--paper-2); border-left:1px solid rgba(20,17,14,.15); }
::-webkit-scrollbar-thumb{ background:var(--ink); border:3px solid var(--paper-2); border-radius:0; }

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

/* ============ 核心布局 ============ */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }

.section {
  padding:80px 0;
  position:relative;
  border-top:var(--bd);
}

.section:nth-child(even) {
  background-color:var(--paper-2);
  background-image:
    repeating-linear-gradient(135deg, rgba(20,17,14,.045) 0 1px, transparent 1px 9px);
}

/* ============ 导航 ============ */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background:rgba(247,242,230,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:var(--bd);
}

.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:8px;
  font-weight:900; font-size:1.2rem;
  letter-spacing:-.02em;
  text-decoration:none; color:var(--ink);
}

.logo-icon {
  width:36px; height:36px; border-radius:var(--r-sm);
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
  background:var(--red); color:#fff;
  border:var(--bd);
  box-shadow:var(--sh-sm);
  transform:rotate(-6deg);
  transition:transform .25s cubic-bezier(.34,1.56,.64,1);
}
.logo:hover .logo-icon{ transform:rotate(6deg) scale(1.06); }

.main-nav { display:flex; align-items:center; gap:24px; list-style:none; }

.main-nav a {
  text-decoration:none; font-size:.9rem; font-weight:600;
  color:var(--ink);
  position:relative;
  padding:2px 0;
  transition:0.2s;
}
.main-nav a::after{
  content:'';
  position:absolute; left:0; bottom:-2px;
  width:100%; height:2px;
  background:var(--red);
  transform:scaleX(0); transform-origin:left;
  transition:transform .28s cubic-bezier(.65,0,.35,1);
}
.main-nav a:hover{ color:var(--red); }
.main-nav a:hover::after{ transform:scaleX(1); }

.nav-cta {
  padding:8px 20px; border-radius:var(--r-sm);
  color:#fff!important;
  font-weight:700;
  background:var(--red);
  border:var(--bd);
  box-shadow:var(--sh-sm);
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.nav-cta::after{ display:none; }
.nav-cta:hover{
  background:var(--violet);
  color:#fff!important;
  transform:translate(-2px,-2px);
  box-shadow:5px 5px 0 var(--ink);
}

.menu-toggle {
  display:none;
  width:44px; height:40px;
  align-items:center; justify-content:center;
  background:var(--acid);
  border:var(--bd);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-sm);
  cursor:pointer;
  font-size:1.1rem;
  font-weight:900;
  color:var(--ink);
}
.menu-toggle::before{ content:'≡'; line-height:1; }

/* ============ Hero ============ */
.hero {
  min-height:70vh;
  display:flex; align-items:center;
  position:relative;
  overflow:hidden;
  padding:140px 0 80px;
  border-top:none;
}

.hero::before{
  content:'';
  position:absolute; inset:0;
  background-image:radial-gradient(rgba(20,17,14,.55) 1px, transparent 1px);
  background-size:11px 11px;
  opacity:.14;
  pointer-events:none;
  mask-image:linear-gradient(120deg, #000 0%, transparent 62%);
  -webkit-mask-image:linear-gradient(120deg, #000 0%, transparent 62%);
}

.hero::after{
  content:'';
  position:absolute;
  right:-90px; top:0;
  width:340px; height:100%;
  background:repeating-linear-gradient(45deg, var(--violet) 0 14px, var(--acid) 14px 28px);
  opacity:.28;
  border-left:var(--bd);
  transform:skewX(-8deg);
  pointer-events:none;
}

.hero-content { max-width:720px; position:relative; z-index:2; }

.hero-eyebrow {
  display:inline-block;
  font-size:.8rem; font-weight:800;
  letter-spacing:.18em;
  padding:6px 14px;
  margin-bottom:22px;
  border-radius:2px;
  background:var(--acid);
  color:var(--ink);
  border:var(--bd);
  box-shadow:var(--sh-sm);
  transform:rotate(-1.6deg);
  text-transform:uppercase;
}

.hero h1 {
  font-size:clamp(2.4rem, 6vw, 4.2rem);
  line-height:1.04;
  letter-spacing:-.045em;
  font-weight:900;
  margin-bottom:24px;
}
.hero h1 em{
  font-style:normal;
  color:var(--red);
  position:relative;
  white-space:nowrap;
}
.hero h1 em::after{
  content:'';
  position:absolute; left:0; bottom:.06em;
  width:100%; height:.22em;
  background:var(--acid);
  z-index:-1;
  transform:skewX(-12deg);
}

.hero p {
  font-size:1.06rem;
  color:var(--ink-soft);
  max-width:560px;
  margin-bottom:34px;
  line-height:1.8;
}

.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; align-items:center; }

.hero-image {
  border-radius:var(--r);
  overflow:hidden;
  border:var(--bd);
  box-shadow:var(--sh-lg);
  position:relative;
  transform:rotate(-1.5deg);
  background:var(--paper-3);
}
.hero-image img { width:100%; height:auto; filter:contrast(1.06) saturate(1.05); }
.hero-image::after{
  content:'档案 · DOSSIER';
  position:absolute; left:-6px; bottom:14px;
  background:var(--ink); color:var(--acid);
  font-size:.68rem; font-weight:800; letter-spacing:.22em;
  padding:5px 14px;
}

/* ============ 按钮 ============ */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 30px;
  border-radius:var(--r-sm);
  font-weight:800;
  font-size:.92rem;
  letter-spacing:.04em;
  cursor:pointer; border:var(--bd);
  text-decoration:none;
  position:relative;
  transition:transform .18s cubic-bezier(.34,1.4,.64,1), box-shadow .18s ease, background .18s ease, color .18s ease;
}

.btn-primary {
  color:#fff;
  background:var(--red);
  box-shadow:var(--sh);
}
.btn-primary:hover{
  background:var(--violet);
  transform:translate(-3px,-3px);
  box-shadow:9px 9px 0 var(--ink);
}
.btn-primary:active{
  transform:translate(4px,4px);
  box-shadow:0 0 0 var(--ink);
}

.btn-outline {
  background:transparent;
  border:2px solid var(--ink);
  color:var(--ink);
  box-shadow:var(--sh-sm);
}
.btn-outline:hover{
  background:var(--acid);
  transform:translate(-3px,-3px);
  box-shadow:6px 6px 0 var(--ink);
}
.btn-outline:active{
  transform:translate(3px,3px);
  box-shadow:0 0 0 var(--ink);
}

/* ============ 标签 / 标题 ============ */
.section-label {
  display:inline-block;
  font-size:.72rem; font-weight:800;
  letter-spacing:.22em;
  padding:5px 12px;
  margin-bottom:16px;
  border-radius:2px;
  background:var(--ink);
  color:var(--acid);
  transform:rotate(-.8deg);
}

.section-title {
  font-size:clamp(1.7rem, 3.6vw, 2.7rem);
  font-weight:900;
  letter-spacing:-.035em;
  line-height:1.15;
  margin-bottom:14px;
}
.section-title::after{
  content:'';
  display:block;
  width:64px; height:6px;
  margin-top:16px;
  background:repeating-linear-gradient(90deg, var(--red) 0 8px, var(--ink) 8px 16px);
}

.section-desc {
  max-width:600px;
  color:var(--ink-soft);
  margin-bottom:40px;
  font-size:1.02rem;
}

.text-accent { color:var(--red); font-weight:800; }

/* ============ 卡片网格 ============ */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:24px;
}

.category-card {
  border-radius:var(--r);
  padding:28px;
  background:var(--paper-3);
  border:var(--bd);
  box-shadow:var(--sh);
  position:relative;
  transition:0.2s;
  overflow:hidden;
}
.category-card::before{
  content:'';
  position:absolute; top:0; left:0;
  width:100%; height:5px;
  background:var(--violet);
  transform:scaleX(0); transform-origin:left;
  transition:transform .3s cubic-bezier(.65,0,.35,1);
}
.category-card:hover {
  transform:translate(-4px,-4px);
  box-shadow:12px 12px 0 var(--red);
}
.category-card:hover::before{ transform:scaleX(1); }

.card-icon {
  width:48px; height:48px;
  border-radius:var(--r-sm);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.3rem;
  background:var(--acid);
  border:var(--bd);
  box-shadow:var(--sh-sm);
  transform:rotate(-4deg);
}
.category-card:nth-child(3n+2) .card-icon{ background:var(--cyan); transform:rotate(4deg); }
.category-card:nth-child(3n+3) .card-icon{ background:var(--violet); color:#fff; transform:rotate(-2deg); }

.category-card h3{
  font-size:1.12rem;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:8px;
}
.category-card p{ font-size:.92rem; color:var(--ink-soft); margin-bottom:16px; }

.card-link {
  font-weight:800; font-size:.85rem;
  text-decoration:none;
  color:var(--ink);
  display:inline-flex; align-items:center; gap:6px;
  border-bottom:2px solid var(--acid);
  padding-bottom:2px;
  transition:0.2s;
}
.card-link::after{ content:'→'; transition:transform .22s ease; }
.card-link:hover{ color:var(--red); border-color:var(--red); }
.card-link:hover::after{ transform:translateX(5px); }

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

.feature-image {
  border-radius:var(--r);
  overflow:hidden;
  border:var(--bd);
  box-shadow:var(--sh-lg);
  background:var(--paper-3);
  transform:rotate(1.2deg);
  transition:transform .35s cubic-bezier(.34,1.4,.64,1);
}
.feature-block:nth-child(even) .feature-image{ transform:rotate(-1.2deg); }
.feature-image:hover{ transform:rotate(0deg); }
.feature-image img { width:100%; height:auto; }

.feature-text h3{
  font-size:clamp(1.4rem,2.6vw,2rem);
  font-weight:900;
  letter-spacing:-.035em;
  line-height:1.2;
  margin-bottom:14px;
}
.feature-text p{ color:var(--ink-soft); margin-bottom:20px; }

.feature-list { list-style:none; }
.feature-list li {
  padding:7px 0;
  display:flex; align-items:center; gap:10px;
  font-weight:500;
  font-size:.96rem;
}
.feature-list li::before {
  content:'✓';
  font-weight:900;
  width:22px; height:22px;
  flex:0 0 22px;
  display:flex; align-items:center; justify-content:center;
  font-size:.72rem;
  background:var(--acid);
  border:2px solid var(--ink);
  border-radius:50%;
  color:var(--ink);
}

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

.stat-item {
  padding:26px 18px;
  border-radius:var(--r);
  background:var(--paper-3);
  border:var(--bd);
  box-shadow:var(--sh);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.stat-item:nth-child(2){ background:#FDF6E3; }
.stat-item:nth-child(3){ background:#F3F0FF; }
.stat-item:nth-child(4){ background:var(--acid); }
.stat-item:hover{
  transform:translate(-3px,-3px) rotate(-1deg);
  box-shadow:10px 10px 0 var(--ink);
}

.stat-number {
  font-size:clamp(1.8rem,4vw,2.4rem);
  font-weight:900;
  letter-spacing:-.05em;
  color:var(--violet);
  line-height:1.1;
}
.stat-item:nth-child(2) .stat-number{ color:var(--red); }
.stat-item:nth-child(3) .stat-number{ color:var(--cyan); }
.stat-item:nth-child(4) .stat-number{ color:var(--ink); }

.stat-label {
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--ink-soft);
  margin-top:8px;
  text-transform:uppercase;
}

/* ============ 内容墙 ============ */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;
}

.content-wall-item {
  border-radius:var(--r);
  overflow:hidden;
  background:var(--paper-3);
  border:var(--bd);
  box-shadow:var(--sh);
  transition:0.2s;
  position:relative;
}
.content-wall-item:nth-child(3n+1){ transform:rotate(-.6deg); }
.content-wall-item:nth-child(3n+3){ transform:rotate(.6deg); }
.content-wall-item:hover {
  transform:translate(-4px,-4px) rotate(0deg);
  box-shadow:12px 12px 0 var(--violet);
}
.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  border-bottom:var(--bd);
  filter:saturate(1.08) contrast(1.04);
  transition:transform .4s ease;
}
.content-wall-item:hover img{ transform:scale(1.04); }

.content-wall-body { padding:20px; }
.content-wall-body h3{
  font-size:1.02rem;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.4;
  margin-bottom:8px;
}
.content-wall-body p{ font-size:.88rem; color:var(--ink-soft); }

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

.faq-item {
  background:var(--paper-3);
  border:var(--bd);
  border-radius:var(--r-sm);
  margin-bottom:10px;
  overflow:hidden; cursor:pointer;
  box-shadow:var(--sh-sm);
  transition:transform .18s ease, box-shadow .18s ease;
}
.faq-item:hover{ transform:translate(-2px,-2px); box-shadow:5px 5px 0 var(--ink); }

.faq-item .faq-question {
  padding:17px 20px;
  font-weight:800;
  font-size:.98rem;
  display:flex; justify-content:space-between; align-items:center; gap:16px;
  transition:background .2s ease;
}
.faq-item .faq-question::after{
  content:'+';
  font-size:1.35rem;
  font-weight:900;
  line-height:1;
  color:var(--red);
  transition:transform .3s cubic-bezier(.34,1.4,.64,1);
  flex:0 0 auto;
}
.faq-item.open .faq-question{ background:var(--acid); }
.faq-item.open .faq-question::after{ transform:rotate(135deg); color:var(--ink); }

.faq-item .faq-answer {
  padding:0 20px 16px;
  display:none;
  color:var(--ink-soft);
  font-size:.94rem;
  line-height:1.8;
  border-top:1px dashed rgba(20,17,14,.25);
  padding-top:14px;
  margin:0 20px 16px;
  padding-left:0; padding-right:0;
}
.faq-item.open .faq-answer { display:block; }

/* ============ CTA横幅 ============ */
.cta-banner {
  padding:56px 24px;
  text-align:center;
  border-radius:var(--r);
  color:#fff;
  background-color:var(--violet);
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,.07) 0 12px, transparent 12px 24px);
  border:var(--bd);
  box-shadow:var(--sh-lg);
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:'';
  position:absolute; top:0; left:0; width:100%; height:8px;
  background:repeating-linear-gradient(90deg, var(--acid) 0 14px, var(--red) 14px 28px);
}
.cta-banner h2 {
  color:#fff;
  font-size:clamp(1.6rem,3.4vw,2.4rem);
  font-weight:900;
  letter-spacing:-.04em;
  margin-bottom:14px;
}
.cta-banner p{
  color:rgba(255,255,255,.86);
  max-width:520px;
  margin:0 auto 30px;
  font-size:1rem;
}
.cta-banner .btn-primary {
  background:#fff;
  color:var(--ink);
  box-shadow:6px 6px 0 var(--ink);
}
.cta-banner .btn-primary:hover{
  background:var(--acid);
  color:var(--ink);
  transform:translate(-3px,-3px);
  box-shadow:9px 9px 0 var(--ink);
}

/* ============ 页脚 ============ */
.site-footer {
  padding:56px 0 28px;
  background-color:var(--paper-2);
  background-image:repeating-linear-gradient(135deg, rgba(20,17,14,.05) 0 1px, transparent 1px 9px);
  border-top:4px solid var(--ink);
  color:var(--ink);
}

.site-footer .container { }

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

.footer-brand .logo{ margin-bottom:14px; }
.footer-brand p{
  font-size:.9rem;
  color:var(--ink-soft);
  max-width:320px;
  line-height:1.8;
}

.footer-col h4{
  font-size:.78rem;
  font-weight:900;
  letter-spacing:.2em;
  text-transform:uppercase;
  margin-bottom:16px;
  color:var(--ink);
}
.footer-col h4::after{
  content:'';
  display:block; width:28px; height:3px;
  background:var(--red);
  margin-top:8px;
}
.footer-col ul{ list-style:none; }
.footer-col li{ margin-bottom:9px; }
.footer-col a{
  text-decoration:none;
  color:var(--ink-soft);
  font-size:.9rem;
  transition:0.2s;
  border-bottom:1px solid transparent;
}
.footer-col a:hover{
  color:var(--red);
  border-bottom-color:var(--red);
}

.footer-bottom {
  border-top:2px solid var(--ink);
  margin-top:40px;
  padding-top:20px;
  text-align:center;
  font-size:.82rem;
  letter-spacing:.06em;
  color:var(--ink-soft);
}

/* ============ 工具类 ============ */
.text-center { text-align:center; }
.text-center .section-title::after{ margin-left:auto; margin-right:auto; }
.text-center .section-desc{ margin-left:auto; margin-right:auto; }

.seo-description {
  max-width:600px;
  margin:0 auto 48px;
  color:var(--ink-soft);
  line-height:1.85;
}

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

/* ============================================================
   ⚠️ 响应式
   ============================================================ */
@media (max-width: 1024px){
  .hero::after{ width:220px; opacity:.2; }
  .footer-grid{ grid-template-columns:1.6fr 1fr 1fr; }
}

@media (max-width: 768px) {
  .section{ padding:60px 0; }
  .hero{ padding:120px 0 64px; }
  .hero h1{ letter-spacing:-.03em; }
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; }

  .main-nav.open {
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    position:absolute;
    top:68px; left:0;
    width:100%;
    background:var(--paper);
    padding:20px 24px 26px;
    border-bottom:var(--bd);
    box-shadow:0 12px 0 rgba(20,17,14,.12);
  }
  .main-nav.open a{
    padding:12px 4px;
    font-size:1rem;
    border-bottom:1px dashed rgba(20,17,14,.2);
  }
  .main-nav.open a::after{ display:none; }
  .main-nav.open .nav-cta{
    margin-top:14px;
    text-align:center;
    justify-content:center;
    display:flex;
    border-bottom:none;
  }
  .hero::after{ display:none; }
  .hero-image{ transform:rotate(0deg); }
  .feature-image,
  .feature-block:nth-child(even) .feature-image{ transform:rotate(0deg); }
  .content-wall-item:nth-child(3n+1),
  .content-wall-item:nth-child(3n+3){ transform:rotate(0deg); }
}

@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; }
  .btn{ width:100%; justify-content:center; }
  .nav-cta{ width:auto; }
  .hero h1{ font-size:2.1rem; }
  .section-title::after{ width:48px; height:5px; }
  .cta-banner{ padding:40px 18px; box-shadow:6px 6px 0 var(--ink); }
  .stat-number{ font-size:1.9rem; }
}