:root{--canvas:#fff;--ink:#212121;--muted:#676767;--line:#d9d9dd;--soft:#eeece7;--pale:#f6f7f4;--primary:#17171c;--green:#003c33;--navy:#071829;--coral:#ff7759;--blue:#1863dc;--radius:8px;--font-sans:"Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;--font-mono:"Cascadia Code", "SFMono-Regular", Consolas, monospace}*{box-sizing:border-box}html{scroll-padding-top:88px}body{background:var(--canvas);color:var(--ink);font-family:var(--font-sans);margin:0;font-size:16px;line-height:1.5}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.site-shell{background:radial-gradient(#ececec 1px, transparent 1px) 0 0 / 18px 18px, var(--canvas);min-height:100vh}.site-header{z-index:20;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffe6;border-bottom:1px solid #d9d9ddcc;justify-content:space-between;align-items:center;gap:24px;min-height:68px;padding:0 32px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;font-weight:700;display:inline-flex}.brand-mark{background:linear-gradient(135deg, var(--primary) 0 52%, var(--coral) 52% 100%);border-radius:6px;width:26px;height:26px}.site-header nav{color:var(--muted);gap:24px;font-size:14px;font-weight:600;display:flex}.site-header nav a:hover,.section-heading a:hover,.card-actions a:hover{color:var(--blue)}.hero{grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);align-items:end;gap:40px;max-width:1180px;margin:0 auto;padding:92px 28px 64px;display:grid}.hero h1{letter-spacing:0;max-width:820px;margin:0;font-size:clamp(44px,8vw,92px);font-weight:500;line-height:1.02}.hero p{max-width:620px;color:var(--muted);font-size:18px}.eyebrow{color:var(--coral);font-family:var(--font-mono);letter-spacing:.12em;margin:0 0 14px;font-size:12px}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:30px;display:flex}.button-primary,.button-secondary,.admin-button,.admin-danger{border:1px solid var(--primary);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;min-height:42px;padding:10px 18px;font-size:14px;font-weight:700;display:inline-flex}.button-primary,.admin-button{background:var(--primary);color:#fff}.button-secondary{color:var(--ink);border-color:var(--line);background:#fff}.admin-danger{color:#9f220d;background:#fff4f1;border-color:#ffc4b8}.hero-panel{border:1px solid var(--line);background:var(--line);border-radius:22px;gap:1px;display:grid;overflow:hidden}.hero-panel div{background:#fff;justify-content:space-between;align-items:baseline;gap:20px;padding:24px;display:flex}.hero-panel strong{font-size:42px;font-weight:500}.hero-panel span{color:var(--muted)}.section{max-width:1180px;margin:0 auto;padding:56px 28px}.section-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:end;gap:18px;margin-bottom:26px;padding-bottom:18px;display:flex}.section-heading h2{margin:0;font-size:clamp(30px,5vw,52px);font-weight:500;line-height:1.1}.section-heading a{color:var(--muted);font-weight:700}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.resource-card,.content-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;flex-direction:column;min-height:260px;padding:22px;display:flex}.resource-card h3,.article-list h3,.content-card h3{margin:14px 0 8px;font-size:24px;font-weight:500;line-height:1.25}.resource-card p,.content-card p,.article-list p{color:var(--muted)}.card-meta,.tag-row,.card-actions{flex-wrap:wrap;gap:8px;display:flex}.card-meta{color:var(--muted);justify-content:space-between;font-size:13px}.tag-row{margin-top:auto;padding-top:20px}.tag-row span,.article-list span{color:#af3b22;border:1px solid #ffad9b;border-radius:999px;padding:4px 9px;font-size:12px}.card-actions{border-top:1px solid var(--line);margin-top:18px;padding-top:16px}.card-actions a{font-weight:700}.dark-band{background:var(--green);color:#fff;border-radius:22px;grid-template-columns:.8fr 1.2fr;align-items:start;gap:48px;max-width:1180px;margin:56px auto;padding:58px;display:grid}.dark-band h2{margin:0;font-size:clamp(34px,5vw,60px);font-weight:500;line-height:1.05}.dark-band p{color:#ffffffb8}.list-panel{border-top:1px solid #fff3;display:grid}.list-panel a{border-bottom:1px solid #fff3;justify-content:space-between;gap:20px;padding:20px 0;font-size:22px;display:flex}.list-panel small{color:#ffffffa6}.article-list{display:grid}.article-list a{border-bottom:1px solid var(--line);grid-template-columns:140px minmax(0,.8fr) minmax(0,1fr);align-items:start;gap:22px;padding:22px 0;display:grid}.article-list h3,.article-list p{margin:0}.page-hero{max-width:980px;margin:0 auto;padding:72px 28px 28px}.page-hero h1{margin:0;font-size:clamp(38px,7vw,76px);font-weight:500;line-height:1.05}.page-hero p{max-width:680px;color:var(--muted);font-size:18px}.content-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px;max-width:980px;margin:0 auto;padding:24px 28px 72px;display:grid}.article-body{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:28px}.rich-text h2{margin:28px 0 12px;font-size:28px;font-weight:500}.rich-text h2:first-child{margin-top:0}.rich-text p,.rich-text li{color:var(--muted);line-height:1.8}.tutorial-nav{align-self:start;gap:8px;display:grid;position:sticky;top:92px}.tutorial-nav a{border:1px solid var(--line);border-radius:var(--radius);color:var(--muted);background:#fff;padding:10px 12px}.exit-card{border:1px solid var(--line);background:#fff;border-radius:22px;max-width:760px;margin:70px auto;padding:32px}.exit-url{overflow-wrap:anywhere;border:1px solid var(--line);border-radius:var(--radius);background:var(--pale);color:var(--muted);padding:14px}.ad-slot{max-width:1180px;margin:18px auto;padding:0 28px}.custom-ad{border:1px dashed var(--line);border-radius:var(--radius);min-height:72px;color:var(--ink);background:#fff9f6;justify-content:space-between;align-items:center;gap:16px;padding:16px 20px;display:flex}.custom-ad span{color:var(--muted)}.google-ad-unit{min-height:90px;display:block}.adblock-notice{z-index:50;color:#fff;background:#17171cf5;border:1px solid #ffffff2e;border-radius:14px;align-items:center;gap:16px;width:min(520px,100vw - 36px);padding:16px;display:flex;position:fixed;bottom:18px;right:18px;box-shadow:0 18px 48px #00000038}.adblock-notice p{color:#ffffffb3;margin:4px 0 0}.adblock-notice button{color:#fff;cursor:pointer;background:0 0;border:1px solid #ffffff4d;border-radius:999px;flex:none;padding:8px 12px}.site-footer{border-top:1px solid var(--line);color:var(--muted);text-align:center;padding:34px 28px;font-size:13px}.admin-shell{min-height:100vh;color:var(--ink);background:#f7f7f4}.admin-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;gap:20px;padding:24px 28px;display:flex}.admin-header h1{margin:0;font-size:28px;font-weight:600}.admin-grid{grid-template-columns:260px minmax(0,1fr);gap:22px;padding:28px;display:grid}.admin-tabs,.admin-panel,.login-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff}.admin-tabs{align-self:start;display:grid;overflow:hidden}.admin-tabs button{border:0;border-bottom:1px solid var(--line);color:var(--muted);cursor:pointer;text-align:left;background:#fff;padding:14px}.admin-tabs button.active{background:var(--primary);color:#fff}.admin-panel{padding:22px}.admin-form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.field{gap:6px;display:grid}.field.full{grid-column:1/-1}.field span{color:var(--muted);font-size:13px;font-weight:700}.field input,.field textarea,.field select{border:1px solid var(--line);border-radius:var(--radius);background:#fff;width:100%;padding:10px 12px}.field textarea{resize:vertical;min-height:130px}.checkbox-row{flex-wrap:wrap;gap:14px;margin:16px 0;display:flex}.checkbox-row label{color:var(--muted);align-items:center;gap:8px;font-weight:700;display:inline-flex}.admin-item{border:1px solid var(--line);border-radius:var(--radius);background:#fbfbfa;gap:12px;margin-top:16px;padding:16px;display:grid}.admin-actions{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.login-card{max-width:420px;margin:12vh auto;padding:26px}.status-message{color:var(--muted);font-size:14px}.danger-message{border-radius:var(--radius);color:#9f220d;background:#fff4f1;border:1px solid #ffc4b8;margin:10px 0;padding:12px 14px;font-size:14px;font-weight:700}@media (max-width:860px){.site-header{flex-direction:column;align-items:flex-start;padding:16px 20px}.site-header nav{width:100%;padding-bottom:4px;overflow-x:auto}.hero,.dark-band,.content-layout,.admin-grid,.card-grid{grid-template-columns:1fr}.article-list a{grid-template-columns:1fr;gap:10px}.dark-band{margin-left:18px;margin-right:18px;padding:28px}.admin-form-grid{grid-template-columns:1fr}.tutorial-nav{position:static}}