/* ═══════════════════════════════════════════════════════
   每日大赛y — Championship Editorial Design
   Warm Cream · Coral · Teal · Gold
   ═══════════════════════════════════════════════════════ */

:root {
  --bg: #FDF6EE;
  --bg-alt: #FFF1E2;
  --bg-card: #FFFFFF;
  --ink: #2B2B2B;
  --muted: #7A6E63;
  --coral: #FF5A36;
  --teal: #0EA5A0;
  --gold: #F5A900;
  --border: #EFE3D8;
  --shadow: 0 4px 24px rgba(180,120,80,0.12);
  --shadow-lg: 0 12px 40px rgba(180,120,80,0.18);
  --radius: 16px;
  --radius-sm: 10px;
}

/* ── Reset & Base ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background: var(--bg-alt); }

/* ── Header ── */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(253,246,238,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.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:1.25rem; text-decoration:none; color:var(--ink);
  letter-spacing:-0.02em;
}

.logo-icon {
  width:38px; height:38px; border-radius:50%;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  display:flex; align-items:center; justify-content:center;
  font-size:0.9rem; color:#fff;
  box-shadow: 0 2px 12px rgba(255,90,54,0.35);
  position:relative;
}

.logo-icon::after {
  content:''; position:absolute; inset:-3px; border-radius:50%;
  border:2px solid var(--coral); opacity:0.3;
}

.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a {
  text-decoration:none; font-size:0.9rem; font-weight:600;
  color: var(--muted); transition:all 0.25s;
  position:relative;
}

.main-nav a::after {
  content:''; position:absolute; left:0; bottom:-4px; width:0; height:2px;
  background: var(--coral); transition:width 0.3s; border-radius:2px;
}

.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { width:100%; }

.main-nav .nav-cta::after { display:none; }

.nav-cta {
  padding:8px 22px; border-radius:50px;
  background: linear-gradient(135deg, var(--coral), #FF7A55);
  color:#fff !important; font-weight:700;
  box-shadow: 0 4px 16px rgba(255,90,54,0.3);
  transition: transform 0.25s, box-shadow 0.25s;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,90,54,0.4);
  color:#fff !important;
}

.menu-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px; }

.menu-toggle span {
  display:block; width:24px; height:2.5px; background: var(--ink);
  border-radius:4px; transition:0.3s;
}

/* ── Hero ── */
.hero {
  min-height: 80vh;
  display:flex; align-items:center;
  padding: 120px 0 80px;
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 85% 30%, rgba(245,169,0,0.08) 0%, transparent 40%),
    radial-gradient(circle at 15% 80%, rgba(14,165,160,0.08) 0%, transparent 40%),
    var(--bg);
}

.hero::before {
  content:'';
  position:absolute; top:60px; right:-60px; width:220px; height:220px;
  border: 3px dashed rgba(255,90,54,0.2);
  border-radius:50%;
  animation: spin 30s linear infinite;
}

.hero::after {
  content:'';
  position:absolute; bottom:20px; left:-30px; width:120px; height:120px;
  border: 2px solid rgba(14,165,160,0.2);
  border-radius:50%;
  animation: spin 20s linear infinite reverse;
}

@keyframes spin { to { transform:rotate(360deg); } }

.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow {
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.82rem; font-weight:700; padding:6px 18px;
  border-radius:30px; margin-bottom:20px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--coral);
  box-shadow: 0 2px 8px rgba(255,90,54,0.08);
}

.hero-eyebrow::before {
  content:''; width:8px; height:8px; border-radius:50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(14,165,160,0.2);
}

.hero h1 {
  font-size: 3.4rem; line-height:1.12; margin-bottom:24px;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.hero h1::after {
  content:'🔥';
  display:inline-block;
  font-size:0.5em;
  margin-left:8px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse { 0%,100% { transform:scale(1); } 50% { transform:scale(1.2); } }

.hero p {
  font-size:1.1rem; opacity:0.75; max-width:560px; margin-bottom:36px;
  color: var(--muted);
  font-weight:400;
}

.hero-buttons { display:flex; gap:14px; }

/* ── Buttons ── */
.btn {
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 32px; border-radius:50px;
  font-weight:700; font-size:0.95rem;
  cursor:pointer; border:none; text-decoration:none;
  transition: all 0.3s cubic-bezier(0.175,0.885,0.32,1.1);
  position:relative; overflow:hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--coral), #FF7A55);
  color:#fff;
  box-shadow: 0 6px 20px rgba(255,90,54,0.3);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(255,90,54,0.4);
}

.btn-primary::after {
  content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
  animation: shine 3s ease-in-out infinite;
}

@keyframes shine {
  0% { transform:translateX(-100%); }
  60%,100% { transform:translateX(100%); }
}

.btn-outline {
  background:transparent; border:2px solid var(--teal);
  color: var(--teal);
}

.btn-outline:hover {
  background: var(--teal); color:#fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(14,165,160,0.25);
}

/* ── Section Labels & Titles ── */
.section-label {
  display:inline-block; font-size:0.78rem; font-weight:700;
  letter-spacing:3px; margin-bottom:14px;
  text-transform: uppercase;
  color: var(--coral);
  background: rgba(255,90,54,0.08);
  padding:4px 14px; border-radius:20px;
}

.section-title {
  font-size:2.4rem; margin-bottom:16px;
  font-weight:900; letter-spacing:-0.02em;
  line-height:1.15;
}

.section-desc {
  max-width:600px; opacity:0.75; margin-bottom:48px;
  color: var(--muted); font-size:1.05rem;
}

/* ── Cards Grid ── */
.cards-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:28px;
}

.category-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding:32px 28px;
  border: 1px solid var(--border);
  transition: all 0.35s cubic-bezier(0.175,0.885,0.32,1.1);
  position:relative;
  overflow:hidden;
}

.category-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:4px;
  background: linear-gradient(90deg, var(--coral), var(--gold));
  border-radius: 4px 4px 0 0;
  transform: scaleX(0); transition: transform 0.4s;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.category-card:hover::before { transform: scaleX(1); }

.card-icon {
  width:52px; height:52px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.4rem;
  background: linear-gradient(135deg, rgba(255,90,54,0.1), rgba(245,169,0,0.1));
}

.card-link {
  font-weight:700; font-size:0.85rem;
  text-decoration:none; color: var(--coral);
  display:inline-flex; align-items:center; gap:6px;
  margin-top:14px;
  transition: gap 0.3s;
}

.card-link:hover { gap: 12px; }

/* ── Feature Block ── */
.feature-block {
  display:grid; grid-template-columns:1fr 1fr; gap:60px;
  align-items:center;
}

.feature-image {
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: var(--shadow-lg);
  position:relative;
}

.feature-image::after {
  content:''; position:absolute; inset:0;
  background: linear-gradient(135deg, rgba(255,90,54,0.05), rgba(14,165,160,0.05));
}

.feature-image img { width:100%; height:auto; display:block; }

.feature-text h3 {
  font-size:1.5rem; font-weight:800; margin-bottom:16px;
  letter-spacing:-0.01em;
}

.feature-text p { margin-bottom:20px; color: var(--muted); }

.feature-list { list-style:none; }
.feature-list li {
  padding:8px 0; display:flex; align-items:center; gap:10px;
  font-weight:500;
}

.feature-list li::before {
  content:'✓';
  font-weight:800;
  color: var(--teal);
  background: rgba(14,165,160,0.1);
  width:24px; height:24px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:0.8rem;
}

/* ── Stats Bar ── */
.stats-bar {
  display:grid; grid-template-columns:repeat(4,1fr); gap:28px;
  text-align:center;
}

.stat-item {
  padding:32px 24px; border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  position:relative;
  transition: all 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.stat-number {
  font-size:2.6rem; font-weight:900;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing:-0.02em;
}

.stat-label {
  font-size:0.9rem; opacity:0.65; margin-top:8px;
  color: var(--muted); font-weight:500;
}

/* ── Content Wall ── */
.content-wall {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}

.content-wall-item {
  border-radius: var(--radius);
  overflow:hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all 0.35s cubic-bezier(0.175,0.885,0.32,1.1);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.content-wall-item img {
  width:100%; height:220px; object-fit:cover;
  transition: transform 0.5s;
}

.content-wall-item:hover img { transform: scale(1.05); }

.content-wall-body { padding:24px; }

.content-wall-body h4 {
  font-size:1.1rem; font-weight:700; margin-bottom:8px;
}

.content-wall-body p { font-size:0.9rem; color: var(--muted); }

/* ── FAQ ── */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item {
  background: var(--bg-card);
  border:1px solid var(--border);
  border-radius: 12px;
  margin-bottom:10px;
  overflow:hidden;
  cursor:pointer;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover { border-color: var(--coral); }

.faq-item.open { box-shadow: var(--shadow); border-color: var(--coral); }

.faq-item .faq-question {
  padding:18px 24px; font-weight:700;
  display:flex; justify-content:space-between; align-items:center;
  font-size:1rem;
  color: var(--ink);
  transition: color 0.3s;
}

.faq-item .faq-question::after {
  content:'+'; font-size:1.5rem; font-weight:400;
  color: var(--coral);
  transition: transform 0.35s;
}

.faq-item.open .faq-question::after { transform: rotate(45deg); }

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display:none;
  color: var(--muted);
  font-size:0.95rem;
  line-height:1.7;
}

.faq-item.open .faq-answer { display:block; }

/* ── CTA Banner ── */
.cta-banner {
  padding:64px 32px;
  text-align:center;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--coral), #FF7A55, #FF9D5C);
  color:#fff;
  position:relative;
  overflow:hidden;
  box-shadow: 0 16px 60px rgba(255,90,54,0.35);
}

.cta-banner::before {
  content:''; position:absolute; top:-60px; right:-60px;
  width:180px; height:180px; border-radius:50%;
  background: rgba(255,255,255,0.15);
}

.cta-banner::after {
  content:''; position:absolute; bottom:-80px; left:-40px;
  width:220px; height:220px; border-radius:50%;
  background: rgba(255,255,255,0.08);
}

.cta-banner h2 {
  color:#fff !important;
  font-size:2.2rem;
  font-weight:900;
  margin-bottom:16px;
  position:relative; z-index:2;
}

.cta-banner p { color: rgba(255,255,255,0.9); position:relative; z-index:2; margin-bottom:28px; }

.cta-banner .btn-primary {
  background:#fff; color: var(--coral);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  position:relative; z-index:2;
  font-weight:800;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

/* ── Site Footer ── */
.site-footer {
  padding:64px 0 28px;
  background: var(--teal);
  color: #fff;
  margin-top: 40px;
  position: relative;
}

.site-footer::before {
  content:''; position:absolute; top:0; left:0; right:0; height:5px;
  background: linear-gradient(90deg, var(--gold), var(--coral), var(--gold));
}

.site-footer .container { position: relative; z-index: 1; }

.footer-grid {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px;
}

.footer-brand { color: #fff; }

.footer-brand .logo {
  color:#fff;
  margin-bottom:12px;
}

.footer-brand p { opacity:0.85; font-size:0.9rem; }

.footer-col h5 {
  font-size:0.95rem; font-weight:700; margin-bottom:18px;
  letter-spacing:0.05em; text-transform:uppercase;
  color: rgba(255,255,255,0.7);
}

.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul a {
  color:#fff; text-decoration:none; font-size:0.9rem;
  opacity:0.85; transition: opacity 0.2s, padding-left 0.2s;
}

.footer-col ul a:hover { opacity:1; padding-left:4px; }

.footer-bottom {
  border-top:1px solid rgba(255,255,255,0.2);
  margin-top:48px; padding-top:24px;
  text-align:center; font-size:0.85rem;
  color: rgba(255,255,255,0.8);
}

/* ── Tool Classes ── */
.text-accent { color: var(--coral); font-weight:700; }
.text-center { text-align:center; }
.seo-description {
  max-width:600px; margin:0 auto 48px; opacity:0.75;
  color: var(--muted);
  text-align:center;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ── Decorative Scrollbar ── */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--coral), var(--gold));
  border-radius: 8px;
  border: 2px solid var(--bg);
}

::selection {
  background: var(--coral);
  color: #fff;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); gap:16px; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }

  .main-nav {
    display:none;
    position:fixed;
    top:68px; left:0; width:100%;
    background: var(--bg-card);
    padding:28px;
    flex-direction:column;
    gap:16px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.1);
    border-bottom: 1px solid var(--border);
  }

  .main-nav.open {
    display:flex;
    flex-direction:column;
    position:absolute;
    top:68px; left:0; width:100%;
    background: var(--bg-card);
    padding:24px;
    align-items:flex-start;
  }

  .main-nav a { font-size:1.05rem; padding:8px 0; }
  .nav-cta { align-self:flex-start; margin-top:8px; }

  .menu-toggle { display:flex; }

  .hero {
    padding-top:120px;
    min-height:auto;
  }

  .hero h1 { font-size:2.2rem; }
  .hero p { font-size:1rem; }
  .hero-buttons { flex-direction:row; flex-wrap:wrap; }

  .section-title { font-size:1.8rem; }
  .cta-banner h2 { font-size:1.7rem; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .hero-buttons { flex-direction:column; width:100%; }
  .hero-buttons .btn { width:100%; justify-content:center; }
  .hero h1 { font-size:1.9rem; }

  .section { padding:56px 0; }
  .container { padding:0 18px; }

  .stat-number { font-size:2rem; }
  .content-wall-item img { height:180px; }
}