/* ============================================
   寸止挑战 - 原创样式表
   品牌色系：活力橙 + 深夜蓝 + 玫红
   ============================================ */

/* CSS Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif; background: #0F0F23; color: #EAEAEA; line-height: 1.7; overflow-x: hidden; }
a { color: #FF6B35; text-decoration: none; transition: color 0.3s; }
a:hover { color: #E94560; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ============ Header & Navigation ============ */
.site-header { background: rgba(26, 26, 46, 0.95); backdrop-filter: blur(10px); position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; border-bottom: 2px solid #FF6B35; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 10px 20px; max-width: 1200px; margin: 0 auto; }
.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { height: 42px; width: auto; }
.site-logo span { font-size: 1.3rem; font-weight: 700; color: #FF6B35; letter-spacing: 1px; }

/* Main Nav */
.main-nav { display: flex; align-items: center; gap: 0; }
.main-nav a { padding: 12px 16px; color: #EAEAEA; font-size: 0.95rem; font-weight: 500; transition: all 0.3s; position: relative; }
.main-nav a::after { content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 2px; background: #FF6B35; transition: all 0.3s; transform: translateX(-50%); }
.main-nav a:hover { color: #FF6B35; }
.main-nav a:hover::after { width: 80%; }
.main-nav a.active { color: #FF6B35; }
.main-nav a.active::after { width: 80%; }

/* Mobile Menu Toggle */
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.menu-toggle span { width: 25px; height: 3px; background: #FF6B35; border-radius: 2px; transition: 0.3s; }

/* Search Bar */
.search-bar { background: #1A1A2E; padding: 12px 0; border-bottom: 1px solid rgba(255, 107, 53, 0.2); margin-top: 64px; }
.search-bar .container { display: flex; justify-content: center; }
.search-box { display: flex; max-width: 600px; width: 100%; }
.search-box input { flex: 1; padding: 10px 18px; background: #16213E; border: 1px solid rgba(255, 107, 53, 0.3); border-right: none; border-radius: 25px 0 0 25px; color: #EAEAEA; font-size: 0.95rem; outline: none; transition: border-color 0.3s; }
.search-box input:focus { border-color: #FF6B35; }
.search-box input::placeholder { color: #888; }
.search-box button { padding: 10px 24px; background: linear-gradient(135deg, #FF6B35, #E94560); border: none; border-radius: 0 25px 25px 0; color: #fff; font-size: 0.95rem; cursor: pointer; transition: opacity 0.3s; }
.search-box button:hover { opacity: 0.85; }

/* ============ Banner Section ============ */
.yu91ouk { position: relative; width: 100%; min-height: 520px; overflow: hidden; }
.bos1g { width: 100%; height: 520px; object-fit: cover; display: block; }
.eyd6mxbr { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to bottom, rgba(15,15,35,0.3), rgba(15,15,35,0.85)); display: flex; align-items: center; justify-content: center; text-align: center; padding: 40px 20px; }
.it8u1 h1 { font-size: 2.8rem; color: #fff; margin-bottom: 16px; text-shadow: 2px 2px 8px rgba(0,0,0,0.6); }
.it8u1 h1 em { font-style: normal; color: #FF6B35; }
.it8u1 p { font-size: 1.15rem; color: #ddd; max-width: 700px; margin: 0 auto 24px; line-height: 1.8; }
.it8u1 .qbxtrc { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn { display: inline-block; padding: 12px 30px; border-radius: 30px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.3s; border: none; }
.btn-primary { background: linear-gradient(135deg, #FF6B35, #E94560); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4); color: #fff; }
.btn-outline { background: transparent; color: #FF6B35; border: 2px solid #FF6B35; }
.btn-outline:hover { background: #FF6B35; color: #fff; transform: translateY(-2px); }

/* ============ Section Common ============ */
.section { padding: 60px 0; }
.vrw8r4 { background: #0F0F23; }
.ojiw4rq { background: #1A1A2E; }
.dumo0s1g { text-align: center; margin-bottom: 40px; }
.dumo0s1g h2 { font-size: 2rem; color: #fff; margin-bottom: 10px; }
.dumo0s1g h2 em { font-style: normal; color: #FF6B35; }
.dumo0s1g p { color: #aaa; font-size: 1rem; max-width: 600px; margin: 0 auto; }
.dumo0s1g .zg4qr44 { width: 60px; height: 3px; background: linear-gradient(90deg, #FF6B35, #E94560); margin: 12px auto 0; border-radius: 2px; }

/* ============ Video Cards ============ */
.hliqz0m0 { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.video-card { background: #16213E; border-radius: 12px; overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; cursor: pointer; }
.video-card:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(255, 107, 53, 0.15); }
.video-thumb { position: relative; width: 100%; padding-top: 56.25%; overflow: hidden; }
.video-thumb img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 60px; height: 60px; background: rgba(255, 107, 53, 0.85); border-radius: 50%; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s; }
.video-play-btn::after { content: ''; width: 0; height: 0; border-style: solid; border-width: 10px 0 10px 18px; border-color: transparent transparent transparent #fff; margin-left: 3px; }
.video-card:hover .video-play-btn { opacity: 1; }
.video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.75); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 0.8rem; }
.video-info { padding: 14px 16px; }
.video-info h3 { font-size: 1rem; color: #EAEAEA; margin-bottom: 6px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; gap: 14px; color: #888; font-size: 0.82rem; flex-wrap: wrap; }
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ============ Feature Grid ============ */
.p1pidl { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.prv7l7a { background: #16213E; border-radius: 12px; padding: 28px 24px; text-align: center; transition: all 0.3s; border: 1px solid rgba(255, 107, 53, 0.1); }
.prv7l7a:hover { border-color: #FF6B35; transform: translateY(-4px); box-shadow: 0 8px 24px rgba(255, 107, 53, 0.1); }
.d40t3 { width: 64px; height: 64px; margin: 0 auto 16px; background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(233,69,96,0.15)); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; }
.prv7l7a h3 { font-size: 1.1rem; color: #fff; margin-bottom: 8px; }
.prv7l7a p { color: #aaa; font-size: 0.9rem; line-height: 1.6; }

/* ============ Expert Cards ============ */
.n71fh { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.qr6fo5pm { background: #16213E; border-radius: 12px; padding: 24px; text-align: center; transition: all 0.3s; }
.qr6fo5pm:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(255,107,53,0.1); }
.y4k1g { width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 14px; background: linear-gradient(135deg, #FF6B35, #E94560); display: flex; align-items: center; justify-content: center; font-size: 2rem; color: #fff; overflow: hidden; }
.y4k1g img { width: 100%; height: 100%; object-fit: cover; }
.qr6fo5pm h3 { font-size: 1.05rem; color: #fff; margin-bottom: 4px; }
.qr6fo5pm .role { color: #FF6B35; font-size: 0.85rem; margin-bottom: 8px; }
.qr6fo5pm p { color: #aaa; font-size: 0.85rem; line-height: 1.5; margin-bottom: 12px; }
.qr6fo5pm .lmr67 { display: flex; gap: 10px; justify-content: center; }
.qr6fo5pm .lmr67 a { padding: 6px 14px; border-radius: 20px; font-size: 0.8rem; border: 1px solid #FF6B35; color: #FF6B35; transition: all 0.3s; }
.qr6fo5pm .lmr67 a:hover { background: #FF6B35; color: #fff; }

/* ============ Reviews ============ */
.bxljwlza { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.fl385pw { background: #16213E; border-radius: 12px; padding: 24px; border-left: 3px solid #FF6B35; }
.fl385pw .n0ook { color: #FFD700; font-size: 0.9rem; margin-bottom: 10px; letter-spacing: 2px; }
.fl385pw blockquote { color: #ccc; font-size: 0.92rem; line-height: 1.7; margin-bottom: 14px; font-style: italic; }
.fl385pw .g1ilv0y { display: flex; align-items: center; gap: 10px; }
.fl385pw .sn2rqd { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, #FF6B35, #E94560); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.85rem; font-weight: 700; }
.fl385pw .k1sen { font-size: 0.85rem; }
.fl385pw .k1sen strong { color: #fff; }
.fl385pw .k1sen span { color: #888; display: block; font-size: 0.78rem; }

/* ============ FAQ ============ */
.bfol6q2 { max-width: 800px; margin: 0 auto; }
.faq-item { background: #16213E; border-radius: 10px; margin-bottom: 12px; overflow: hidden; border: 1px solid rgba(255,107,53,0.1); }
.faq-question { padding: 18px 24px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: #EAEAEA; font-size: 0.98rem; transition: background 0.3s; }
.faq-question:hover { background: rgba(255,107,53,0.05); }
.faq-question .arrow { color: #FF6B35; font-size: 1.2rem; transition: transform 0.3s; }
.faq-item.active .faq-question .arrow { transform: rotate(180deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: all 0.3s ease; }
.faq-item.active .faq-answer { padding: 0 24px 18px; max-height: 300px; }
.faq-answer p { color: #aaa; font-size: 0.9rem; line-height: 1.7; }

/* ============ Contact Section ============ */
.nirjei1d { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.huhxeci { background: #16213E; border-radius: 12px; padding: 24px; text-align: center; }
.huhxeci h3 { color: #FF6B35; font-size: 1.05rem; margin-bottom: 12px; }
.huhxeci p { color: #aaa; font-size: 0.9rem; line-height: 1.6; }
.huhxeci img { max-width: 160px; margin: 12px auto; border-radius: 8px; }

/* ============ Partner Logos ============ */
.mgdzd { display: flex; flex-wrap: wrap; justify-content: center; gap: 30px; align-items: center; padding: 20px 0; }
.mgdzd .pf4jw { background: #16213E; padding: 16px 24px; border-radius: 10px; font-size: 1rem; color: #aaa; font-weight: 600; transition: all 0.3s; border: 1px solid rgba(255,107,53,0.1); }
.mgdzd .pf4jw:hover { border-color: #FF6B35; color: #FF6B35; }

/* ============ How-To Guide ============ */
.vhgvpir { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 24px; counter-reset: step; }
.lv7c1g { background: #16213E; border-radius: 12px; padding: 28px 24px; text-align: center; counter-increment: step; position: relative; }
.lv7c1g::before { content: counter(step); position: absolute; top: -14px; left: 50%; transform: translateX(-50%); width: 32px; height: 32px; background: linear-gradient(135deg, #FF6B35, #E94560); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 0.9rem; line-height: 32px; }
.lv7c1g h3 { color: #fff; font-size: 1rem; margin-bottom: 8px; margin-top: 8px; }
.lv7c1g p { color: #aaa; font-size: 0.88rem; line-height: 1.6; }

/* ============ Social Share ============ */
.jzhqy { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; padding: 20px 0; }
.share-btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 20px; border-radius: 25px; font-size: 0.9rem; font-weight: 500; color: #fff; transition: all 0.3s; cursor: pointer; border: none; }
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; color: #fff; }
.jthj5wl { background: #07C160; }
.c5uchl { background: #E6162D; }
.fl1opmr { background: #161823; border: 1px solid #444; }
.c9rjf { background: #00A1D6; }

/* ============ Footer ============ */
.site-footer { background: #0A0A1A; border-top: 2px solid #FF6B35; padding: 40px 0 0; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; margin-bottom: 30px; }
.footer-col h4 { color: #FF6B35; font-size: 1.05rem; margin-bottom: 14px; }
.footer-col p, .footer-col li { color: #888; font-size: 0.88rem; line-height: 1.8; }
.footer-col a { color: #888; transition: color 0.3s; }
.footer-col a:hover { color: #FF6B35; }
.footer-col img { max-width: 120px; border-radius: 6px; margin-top: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,107,53,0.15); padding: 16px 0; text-align: center; color: #666; font-size: 0.82rem; }
.footer-bottom a { color: #888; }

/* ============ Breadcrumb ============ */
.breadcrumb { padding: 14px 0; margin-top: 64px; background: #1A1A2E; }
.breadcrumb .container { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; color: #888; }
.breadcrumb a { color: #aaa; }
.breadcrumb a:hover { color: #FF6B35; }
.breadcrumb .sep { color: #555; }
.breadcrumb .current { color: #FF6B35; }

/* ============ Inner Page Content ============ */
.page-content { padding: 40px 0 60px; }
.page-content h1 { font-size: 2rem; color: #fff; margin-bottom: 16px; }
.page-content h2 { font-size: 1.5rem; color: #FF6B35; margin: 30px 0 14px; }
.page-content p { color: #ccc; font-size: 0.95rem; line-height: 1.8; margin-bottom: 16px; }
.page-content .h7qq2 { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.page-content .tag { padding: 4px 14px; background: rgba(255,107,53,0.1); color: #FF6B35; border-radius: 20px; font-size: 0.82rem; }

/* ============ Community Grid ============ */
.zsk1dekh { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.t0vtpg5 { background: #16213E; border-radius: 12px; padding: 20px; text-align: center; transition: all 0.3s; }
.t0vtpg5:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(255,107,53,0.1); }
.t0vtpg5 .emoji { font-size: 2.5rem; margin-bottom: 10px; }
.t0vtpg5 h3 { color: #fff; font-size: 0.95rem; margin-bottom: 6px; }
.t0vtpg5 p { color: #aaa; font-size: 0.82rem; }

/* ============ Lazy Loading ============ */




/* ============ Responsive ============ */
@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; width: 100%; background: #1A1A2E; border-bottom: 2px solid #FF6B35; }
  .main-nav.active { display: flex; }
  .main-nav a { padding: 14px 24px; border-bottom: 1px solid rgba(255,107,53,0.1); }
  .menu-toggle { display: flex; }
  .it8u1 h1 { font-size: 1.8rem; }
  .it8u1 p { font-size: 0.95rem; }
  .yu91ouk { min-height: 400px; }
  .bos1g { height: 400px; }
  .section { padding: 40px 0; }
  .dumo0s1g h2 { font-size: 1.5rem; }
  .hliqz0m0 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .p1pidl { grid-template-columns: 1fr 1fr; }
  .n71fh { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .search-bar { margin-top: 60px; }
}

@media (max-width: 480px) {
  .p1pidl { grid-template-columns: 1fr; }
  .n71fh { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hliqz0m0 { grid-template-columns: 1fr; }
  .it8u1 h1 { font-size: 1.4rem; }
  .header-inner { padding: 8px 16px; }
  .site-logo span { font-size: 1.1rem; }
}

/* ============ Animation ============ */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.animate-in { animation: fadeInUp 0.6s ease forwards; }

/* ============ Scrollbar ============ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0F0F23; }
::-webkit-scrollbar-thumb { background: #FF6B35; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #E94560; }

/* ============ Page Banner (Inner Pages) ============ */
.ygchm { background: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%); padding: 100px 0 40px; margin-top: 64px; border-bottom: 1px solid rgba(255,107,53,0.2); }
.ygchm h1 { font-size: 2rem; color: #fff; margin-bottom: 12px; }
.ygchm p { color: #ccc; font-size: 0.98rem; line-height: 1.8; max-width: 800px; margin-bottom: 12px; }
.ygchm .breadcrumb { padding: 0; margin: 0 0 16px; background: none; }
.ygchm .breadcrumb a { color: #aaa; font-size: 0.88rem; }
.ygchm .breadcrumb a:hover { color: #FF6B35; }
.ygchm .breadcrumb span { color: #FF6B35; font-size: 0.88rem; }
.hoyisb1l { display: flex; gap: 20px; flex-wrap: wrap; color: #888; font-size: 0.85rem; margin-top: 8px; padding-top: 10px; border-top: 1px solid rgba(255,107,53,0.1); }

/* ============ Tag List (Section Level) ============ */
.section .h7qq2, .vrw8r4 .h7qq2 { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.h7qq2 .tag { padding: 5px 16px; background: rgba(255,107,53,0.1); color: #FF6B35; border-radius: 20px; font-size: 0.82rem; transition: all 0.3s; cursor: default; }
.h7qq2 .tag:hover { background: rgba(255,107,53,0.2); }

/* ============ Content Text ============ */
.zdi21bb h2 { font-size: 1.4rem; color: #FF6B35; margin-bottom: 14px; }
.zdi21bb p { color: #ccc; font-size: 0.95rem; line-height: 1.8; margin-bottom: 14px; }

/* ============ Community Stats ============ */
.community-stats { display: flex; gap: 14px; justify-content: center; margin-top: 10px; font-size: 0.8rem; color: #888; }

/* ============ Section h2 (Non-header) ============ */
.section h2, .vrw8r4 h2, .ojiw4rq h2 { font-size: 1.5rem; color: #fff; margin-bottom: 20px; }
.section h2 em, .vrw8r4 h2 em, .ojiw4rq h2 em { font-style: normal; color: #FF6B35; }

/* ============ Content Section ============ */
.content-section h2 { font-size: 1.4rem; color: #fff; margin-bottom: 16px; }

/* ============ Responsive additions ============ */
@media (max-width: 768px) {
  .ygchm { padding: 80px 0 30px; }
  .ygchm h1 { font-size: 1.5rem; }
  .hoyisb1l { flex-direction: column; gap: 6px; }
  .zsk1dekh { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}