*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary: #0071e3;--color-primary-hover: #0077ed;--color-accent: #ff2d55;--color-bg: #f5f5f7;--color-card: #ffffff;--color-text: #1d1d1f;--color-text-secondary: #6e6e73;--color-border: #d2d2d7;--color-skeleton: #e8e8ed;--color-skeleton-shine: #f2f2f5;--color-header-bg: rgba(245, 245, 247, .85);--color-tag-bg: rgba(0, 113, 227, .1);--shadow-card: 0 2px 12px rgba(0, 0, 0, .06), 0 1px 3px rgba(0, 0, 0, .04);--shadow-header: 0 1px 0 rgba(0, 0, 0, .08);--radius-card: 16px;--radius-sm: 8px;--radius-pill: 999px;--transition: .2s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--color-primary: #0a84ff;--color-primary-hover: #409cff;--color-accent: #ff375f;--color-bg: #0a0a0a;--color-card: #1c1c1e;--color-text: #f5f5f7;--color-text-secondary: #98989d;--color-border: #38383a;--color-skeleton: #2c2c2e;--color-skeleton-shine: #3a3a3c;--color-header-bg: rgba(10, 10, 10, .88);--color-tag-bg: rgba(10, 132, 255, .15);--shadow-card: 0 2px 12px rgba(0, 0, 0, .4), 0 1px 3px rgba(0, 0, 0, .3);--shadow-header: 0 1px 0 rgba(255, 255, 255, .05)}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.5;transition:background-color var(--transition),color var(--transition);-webkit-font-smoothing:antialiased}.app-layout{min-height:100vh;display:flex;flex-direction:column}.sticky-nav-container{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 4px 12px #0000000d;transition:background-color var(--transition)}[data-theme=dark] .sticky-nav-container{background:#000}[data-theme=dark] .sticky-nav-container{box-shadow:0 4px 20px #0006}.header{background:transparent;border-bottom:1px solid var(--color-border);opacity:.98}.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:16px;height:80px}.header-logo{display:flex;flex-direction:column;gap:2px;text-decoration:none;flex-shrink:0}.logo-main{display:flex;align-items:center;gap:8px}.header-logo-text,.logo-text{font-size:24px;font-weight:900;color:var(--color-text);letter-spacing:-1px;text-transform:uppercase}.logo-slogan{font-size:11px;font-weight:600;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:1.5px;margin-top:-2px;opacity:.8}.header-search-wrap{flex:1;max-width:420px}.header-search{width:100%;padding:9px 16px 9px 40px;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-pill);font-size:14px;color:var(--color-text);transition:border-color var(--transition),box-shadow var(--transition);outline:none;font-family:inherit}.header-search::placeholder{color:var(--color-text-secondary)}.header-search:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #0071e326}.header-search-container{position:relative}.header-search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--color-text-secondary);pointer-events:none;font-size:16px}.header-actions{display:flex;align-items:center;gap:8px;margin-left:auto}.theme-toggle{position:relative;width:44px;height:44px;border-radius:12px;border:1px solid var(--color-border);background:var(--color-card);box-shadow:0 2px 8px #0000000d;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;transition:all var(--transition)}.theme-toggle:hover{background:var(--color-header-bg);transform:translateY(-2px);box-shadow:0 6px 16px #00000026}.refresh-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-pill);border:none;background:var(--color-primary);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition);font-family:inherit}.refresh-btn:hover{background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #0071e359}.refresh-btn:active{transform:translateY(0)}.refresh-btn.spinning svg{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pull-to-refresh{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;justify-content:center;height:80px;pointer-events:none;z-index:50;overflow:hidden}.pull-spinner{width:32px;height:32px;border-radius:50%;border:3px solid var(--color-skeleton);border-top-color:var(--color-primary);opacity:0;transition:opacity .2s}.pull-spinner.visible{opacity:1}.pull-spinner.loading{animation:spin .8s linear infinite}.category-bar{background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;overflow-x:auto;scrollbar-width:none}.category-bar::-webkit-scrollbar{display:none}.category-bar-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;gap:4px;align-items:center;height:48px}.category-btn{flex-shrink:0;padding:6px 16px;border-radius:var(--radius-pill);border:none;background:transparent;color:var(--color-text-secondary);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition);font-family:inherit;white-space:nowrap}.category-btn:hover{color:var(--color-text);background:var(--color-tag-bg)}.category-btn.active{background:var(--color-primary);color:#fff;font-weight:600}.main-content{max-width:1200px;margin:0 auto;padding:28px 24px;flex:1;width:100%}.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px}.news-card{background:var(--color-card);border-radius:var(--radius-card);border:1px solid var(--color-border);overflow:hidden;cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);box-shadow:var(--shadow-card);display:flex;flex-direction:column;text-decoration:none;color:inherit}.news-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px #0000001f,0 4px 8px #0000000f;border-color:var(--color-primary)}[data-theme=dark] .news-card:hover{box-shadow:0 12px 32px #00000080,0 4px 8px #0000004d}.news-card-image-wrap{position:relative;padding-top:56.25%;overflow:hidden;background:var(--color-skeleton);flex-shrink:0}.news-card-image{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1)}.news-card:hover .news-card-image{transform:scale(1.04)}.news-card-no-image{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-skeleton) 0%,var(--color-skeleton-shine) 100%);font-size:40px;opacity:.5}.news-card-source-badge{position:absolute;top:10px;left:10px;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;font-size:11px;font-weight:700;padding:3px 8px;border-radius:var(--radius-pill);text-transform:uppercase;letter-spacing:.5px}.news-card-body{padding:16px;flex:1;display:flex;flex-direction:column;gap:8px}.news-card-meta{display:flex;align-items:center;gap:8px}.news-card-source{font-size:12px;font-weight:700;color:var(--color-primary);text-transform:uppercase;letter-spacing:.5px}.news-card-dot{width:3px;height:3px;border-radius:50%;background:var(--color-text-secondary);flex-shrink:0}.news-card-date{font-size:12px;color:var(--color-text-secondary)}.news-card-title{font-size:16px;font-weight:700;color:var(--color-text);line-height:1.4;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}.news-card-desc{font-size:13px;color:var(--color-text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.news-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:8px;border-top:1px solid var(--color-border);margin-top:auto}.news-card-read-more{font-size:12px;font-weight:600;color:var(--color-primary)}.news-card-arrow{font-size:14px;color:var(--color-text-secondary);transition:transform var(--transition)}.news-card:hover .news-card-arrow{transform:translate(4px);color:var(--color-primary)}@keyframes shimmer{0%{background-position:-600px 0}to{background-position:600px 0}}.skeleton{background:linear-gradient(90deg,var(--color-skeleton) 25%,var(--color-skeleton-shine) 50%,var(--color-skeleton) 75%);background-size:600px 100%;animation:shimmer 1.5s infinite;border-radius:6px}.skeleton-card{background:var(--color-card);border-radius:var(--radius-card);border:1px solid var(--color-border);overflow:hidden;box-shadow:var(--shadow-card)}.skeleton-image{width:100%;padding-top:56.25%;position:relative}.skeleton-image>.skeleton{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:0}.skeleton-body{padding:16px;display:flex;flex-direction:column;gap:10px}.skeleton-line{height:12px}.skeleton-line-short{width:40%}.skeleton-line-title{height:16px;width:95%}.skeleton-line-title-2{height:16px;width:75%}.skeleton-line-desc{height:12px;width:100%}.skeleton-line-desc-2{height:12px;width:60%}.detail-page{max-width:768px;margin:0 auto;padding:32px 24px}.back-btn{display:inline-flex;align-items:center;gap:6px;color:var(--color-primary);font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;background:none;border:none;font-family:inherit;padding:0;margin-bottom:24px;transition:gap var(--transition)}.back-btn:hover{gap:10px}.detail-hero{border-radius:var(--radius-card);overflow:hidden;margin-bottom:24px;aspect-ratio:16 / 9;background:var(--color-skeleton)}.detail-hero img{width:100%;height:100%;object-fit:cover}.detail-source-badge{display:inline-flex;align-items:center;gap:6px;background:var(--color-tag-bg);color:var(--color-primary);font-size:12px;font-weight:700;padding:4px 12px;border-radius:var(--radius-pill);text-transform:uppercase;letter-spacing:.5px;margin-bottom:16px}.detail-title{font-size:clamp(22px,4vw,32px);font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:12px}.detail-date{font-size:13px;color:var(--color-text-secondary);margin-bottom:24px;display:flex;align-items:center;gap:6px}.detail-divider{height:1px;background:var(--color-border);margin-bottom:24px}.detail-description{font-size:17px;line-height:1.75;color:var(--color-text);margin-bottom:36px}.detail-cta{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:var(--color-primary);color:#fff;border-radius:var(--radius-pill);font-size:15px;font-weight:700;text-decoration:none;transition:all var(--transition);border:none;cursor:pointer;font-family:inherit}.detail-cta:hover{background:var(--color-primary-hover);transform:translateY(-2px);box-shadow:0 8px 24px #0071e366}.state-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 24px;gap:16px;text-align:center}.state-icon{font-size:56px;line-height:1}.state-title{font-size:20px;font-weight:700;color:var(--color-text)}.state-desc{font-size:14px;color:var(--color-text-secondary);max-width:320px}.state-retry-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;background:var(--color-primary);color:#fff;border-radius:var(--radius-pill);border:none;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:all var(--transition)}.state-retry-btn:hover{background:var(--color-primary-hover);transform:translateY(-1px)}.status-bar{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--color-text-secondary);margin-bottom:20px}.status-dot{width:8px;height:8px;border-radius:50%;background:#34c759;box-shadow:0 0 0 3px #34c75933;flex-shrink:0}.status-dot.loading{background:var(--color-primary);animation:pulse 1s infinite;box-shadow:0 0 0 3px #0071e333}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@media (max-width: 768px){.header-inner{padding:0 16px;gap:10px}.header-logo-text{font-size:18px}.header-search-wrap{max-width:none}.main-content{padding:20px 16px}.category-bar-inner{padding:0 16px}.news-grid{grid-template-columns:1fr;gap:14px}.detail-page{padding:20px 16px}.refresh-btn span{display:none}}@media (max-width: 480px){.header-logo-text{display:none}}