:root{ --bg:#eef3f8; --panel:rgba(255,255,255,0.88); --line:#d8e2ee; --text:#182433; --muted:#667588; --accent:#1f9d68; --accent-deep:#14734c; --accent-soft:#e8f7ef; --navy:#23364a; --shadow:0 18px 42px rgba(27,46,73,0.08)}*{box-sizing:border-box}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin: -1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}body{margin:0;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:radial-gradient(circle at top right,rgba(62,127,214,0.12),transparent 18rem),linear-gradient(180deg,#f4f8fc 0%,#eef3f8 14rem,#eaf0f7 100%)}body.mobile-error-page{min-height:100vh;display:flex;flex-direction:column}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin: -1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.mobile-header{width:100%;margin-top:0;padding:0;background:linear-gradient(180deg,rgba(246,250,254,0.96) 0%,rgba(237,245,252,0.94) 100%);box-shadow:inset 0 -1px 0 rgba(214,226,238,0.72)}.mobile-page,.mobile-footer{width:calc(100% - 24px);margin-left:auto;margin-right:auto}.mobile-header-top{display:flex;width:100%;height:60px;gap:10px;align-items:center;padding:0 12px}.mobile-brand{display:block;flex:0 0 90px;width:90px}.brand-mark{display:inline-flex;flex-direction:column;align-items:flex-start;gap:6px}.brand-badge{display:inline-flex;align-items:center;justify-content:center;min-width:82px;height:40px;padding:0 14px;border-radius:12px;background:linear-gradient(135deg,var(--navy),#365579);color:#fff;font-size:14px;font-weight:800;letter-spacing:0.08em;box-shadow:0 8px 18px rgba(35,54,74,0.18),inset 0 1px 0 rgba(255,255,255,0.14)}.mobile-download{border:0;font:inherit;cursor:pointer}.mobile-nav{display:flex;flex:1 1 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rgba(255,255,255,0.92);border-radius:24px;background:var(--panel);box-shadow:var(--shadow)}.mobile-section,.mobile-category-hero{margin-top:16px}.mobile-category-hero{margin-top:0}.mobile-category-hero h1{margin:10px 0 0;font-size:25px;line-height:1.24}.mobile-category-hero p{margin:10px 0 0;color:#3c4e62;font-size:14px;line-height:1.7}.mobile-filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.mobile-filter-row a,.mobile-tags a,.mobile-card-tags span{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#4c5c70;font-size:12px;font-weight:800}.mobile-filter-row a.active{background:linear-gradient(180deg,#e9f8f0 0%,#dff3e8 100%);border-color:#cfe8db;color:var(--accent-deep)}.mobile-hero-top{display:grid;grid-template-columns:132px minmax(0,1fr);gap:16px;align-items:start}.mobile-cover{width:100%;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:0;border-radius:18px;background:transparent;border:0;overflow:hidden}.mobile-cover img{width:100%;height:100%;aspect-ratio:1/1;border-radius:18px;object-fit:cover}.mobile-copy h1{margin:0 0 10px;font-size:25px;line-height:1.24;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.mobile-copy p{margin:0;color:#3c4e62;font-size:14px;line-height:1.7;display: -webkit-box;overflow:hidden; -webkit-box-orient:vertical;line-clamp:2; -webkit-line-clamp:2}.mobile-tags{display:block;margin-top:18px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.mobile-tags a{display:inline-flex;margin-right:10px}.mobile-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px}.mobile-meta div,.resource-content>article,.mobile-list-item,.mobile-category-card{border:1px solid var(--line);background:linear-gradient(180deg,#f9fbfe 0%,#eef4fb 100%);box-shadow:0 10px 22px rgba(31,55,87,0.04)}.mobile-meta div{padding:14px 14px 16px;border-radius:18px}.mobile-meta span{display:block;color:var(--muted);font-size:14px;font-weight:800}.mobile-meta strong{display:block;margin-top:8px;font-size:14px;font-weight:700}.mobile-download{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:48px;margin-top:16px;border-radius:18px;background:var(--accent);color:#fff;font-size:17px;font-weight:900}.mobile-section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:14px}.mobile-section-head span{color:var(--accent-deep);font-size:12px;font-weight:800;letter-spacing:0.12em}.mobile-section-head h2{margin:0;font-size:18px;line-height:1.3}.resource-content{display:grid;gap:12px}.resource-content>article{padding:16px;border-radius:20px}.resource-content>article b{display:block;color:var(--muted);font-size:15px;line-height:1.35}.resource-content>article p{margin:10px 0 0;font-size:14px;line-height:1.8}.resource-content:has(>b){gap:0}.resource-content:has(>b)>b{display:block;margin-top:12px;padding:16px 16px 8px;border:1px solid var(--line);border-bottom:0;border-radius:20px 20px 0 0;background:#f4f8fc;color:var(--muted);font-size:15px;line-height:1.35}.resource-content:has(>b)>b:first-child{margin-top:0}.resource-content:has(>b)>span{display:block;margin:0;padding:0 16px 16px;border:1px solid var(--line);border-top:0;border-radius:0 0 20px 20px;background:#f4f8fc;color:var(--text);font-size:14px;line-height:1.8}.mobile-rank-list,.mobile-category-list{display:grid;gap:12px;padding:0;margin:0;list-style:none}.mobile-list-item{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;align-items:center;padding:14px 16px;border-radius:20px}.mobile-list-item i{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:14px;background:#fff2d8;color:#b47b12;font-style:normal;font-weight:800;font-size:14px}.mobile-list-item:nth-child(n + 2) i{background:#f5faf8;color:var(--accent-deep)}.mobile-list-item span{display:grid;gap:6px;min-width:0}.mobile-list-item b,.mobile-list-item small{display:block}.mobile-list-title{display:block;min-width:0;color:var(--ink)}.mobile-list-item b{font-size:16px;line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-list-item small{color:var(--muted);font-size:12px}.mobile-list-tags{display:block;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-list-tags a{display:inline-flex;align-items:center;min-height:24px;padding:0 10px;margin-right:6px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:12px;line-height:1}.mobile-category-card{display:grid;grid-template-columns:104px minmax(0,1fr);gap:14px;padding:12px;border-radius:20px;align-items:start}.mobile-category-card img{width:104px;height:104px;border-radius:18px;object-fit:cover}.mobile-category-body{min-width:0}.mobile-category-body b,.mobile-category-body small,.mobile-category-body em{display:block}.mobile-category-body b{font-size:16px;line-height:1.4;font-style:normal}.mobile-category-body small{margin-top:6px;color:var(--muted);font-size:12px;font-weight:700}.mobile-category-body em{display:-webkit-box;overflow:hidden;margin-top:8px;color:#405166;font-size:13px;font-style:normal;line-height:1.65;line-clamp:2;-webkit-box-orient:vertical;-webkit-line-clamp:2}.mobile-card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.mobile-category-card .mobile-card-tags{display:none}.mobile-pagination{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.mobile-pagination a,.mobile-pagination span{min-width:42px;padding:10px 14px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,#f9fbfe 0%,#eef4fb 100%);color:#4c5c70;font-size:13px;font-weight:800;text-align:center}.mobile-pagination--inside{margin-top:16px}.mobile-pagination a.active,.mobile-pagination span.active{background:linear-gradient(135deg,var(--navy),#365579);border-color:transparent;color:#fff}.mobile-pagination span.ellipsis{min-width:0;padding-inline:4px;border-color:transparent;background:transparent}.mobile-footer{margin-top:16px;margin-bottom:28px}.mobile-footer-inner{padding:18px 16px 20px;border:1px solid rgba(255,255,255,0.84);border-radius:22px;background:linear-gradient(180deg,rgba(255,255,255,0.9) 0%,rgba(240,246,252,0.88) 100%);box-shadow:0 14px 30px rgba(27,46,73,0.06);text-align:center}.mobile-footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}.mobile-footer-links a{color:#506175;font-size:13px;font-weight:700}.mobile-footer-inner p{margin:12px 0 0;color:var(--muted);font-size:13px;line-height:1.7}.mobile-error-panel{padding:28px 22px;border:1px solid rgba(255,255,255,0.92);border-radius:24px;background:var(--panel);box-shadow:var(--shadow);text-align:center}.mobile-error-code{display:inline-flex;align-items:center;justify-content:center;min-width:88px;height:40px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,var(--navy),#365579);color:#fff;font-size:22px;font-weight:900;letter-spacing:0.06em}.mobile-error-panel h1{margin:18px 0 0;font-size:28px;line-height:1.2}.mobile-error-panel p{margin:12px 0 0;color:#405166;font-size:14px;line-height:1.8}.mobile-error-action{margin-top:18px}@media (max-width:640px){.mobile-header-top{gap:8px;padding:0 10px}.brand-badge{min-width:76px;height:36px;padding:0 12px;font-size:14px}.mobile-hero-top{grid-template-columns:114px minmax(0,1fr);gap:14px}.mobile-copy h1,.mobile-category-hero h1{font-size:25px;line-height:1.2}.mobile-copy p,.mobile-category-hero p{font-size:14px;line-height:1.6}}@media (max-width:400px){.mobile-page,.mobile-header-top,.mobile-nav,.mobile-footer{width:calc(100% - 20px)}.mobile-hero-top,.mobile-category-card{grid-template-columns:88px minmax(0,1fr);gap:12px}.mobile-category-card img{width:88px;height:88px}.mobile-copy h1,.mobile-category-hero h1{font-size:21px}.mobile-copy p,.mobile-category-hero p,.mobile-category-body em{font-size:13px}.mobile-meta{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-error-panel h1{font-size:24px}}