:root{--bg:#f4f7fb;--surface:#ffffff;--surface-2:#eef3f9;--text:#182230;--text-strong:#0d1520;--muted:#5d6c7f;--border:#dfe7f0;--border-strong:#c8d4e2;--primary:#1d4ed8;--primary-strong:#1a3fb0;--primary-soft:#e8eefc;--accent:#d97706;--accent-strong:#b45309;--accent-soft:#fdf3e3;--success:#15803d;--success-soft:#e7f6ec;--code-bg:#f1f5f9;--code-text:#0f172a;--shadow:0 1px 2px rgba(15,23,42,0.06),0 8px 24px rgba(15,23,42,0.07);--shadow-sm:0 1px 2px rgba(15,23,42,0.08);--header-bg:rgba(255,255,255,0.88);--radius:14px;--radius-sm:9px;--container:1200px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;--mono:"SF Mono","Cascadia Code",Consolas,"Courier New",ui-monospace,monospace}[data-theme="dark"]{--bg:#0b1220;--surface:#111a2b;--surface-2:#16223a;--text:#dbe5f1;--text-strong:#f2f6fb;--muted:#8fa2b8;--border:#22304a;--border-strong:#31415f;--primary:#6b96ff;--primary-strong:#8aabff;--primary-soft:#1a2a4d;--accent:#fbbf24;--accent-strong:#fcd34d;--accent-soft:#2c2410;--success:#4ade80;--success-soft:#12291d;--code-bg:#0d1626;--code-text:#dbe7f5;--shadow:0 1px 2px rgba(0,0,0,0.4),0 10px 30px rgba(0,0,0,0.35);--shadow-sm:0 1px 2px rgba(0,0,0,0.4);--header-bg:rgba(11,18,32,0.88)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px;overflow-x:clip}body{margin:0;overflow-x:clip;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;transition:background 0.25s ease,color 0.25s ease}img{max-width:100%;height:auto}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;z-index:200}.skip-link:focus{left:8px;top:8px}.site-header{position:sticky;top:0;z-index:100;background:var(--header-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;gap:16px;height:64px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;letter-spacing:-0.02em;color:var(--text-strong);flex-shrink:0}.brand:hover{text-decoration:none}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;box-shadow:0 2px 8px rgba(29,78,216,0.24);transition:transform 0.18s cubic-bezier(0.22,1,0.36,1),box-shadow 0.18s ease}.brand-mark svg{display:block;width:100%;height:100%}.brand:hover .brand-mark{transform:translateY(-1px) scale(1.03);box-shadow:0 4px 12px rgba(29,78,216,0.34)}.brand-dot{color:var(--accent);font-weight:800}.site-nav{display:flex;align-items:center;gap:2px;flex:1;min-width:0}.nav-item{position:relative}.nav-link{display:inline-flex;align-items:center;gap:4px;padding:7px 10px;border-radius:8px;color:var(--text);font-size:0.92rem;font-weight:500;white-space:nowrap}.nav-link:hover{background:var(--surface-2);text-decoration:none}.nav-link.active{color:var(--primary);background:var(--primary-soft);font-weight:600}.nav-item.active>.nav-link{color:var(--primary)}.caret{opacity:0.55}.nav-dropdown{position:absolute;top:calc(100% + 8px);left:0;min-width:220px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity 0.16s ease,transform 0.16s ease,visibility 0.16s;z-index:120}.nav-item:last-child .nav-dropdown{left:auto;right:0}.nav-item.has-children:hover .nav-dropdown,.nav-item.has-children:focus-within .nav-dropdown,.nav-item.has-children.open .nav-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.nav-dropdown a{display:block;padding:8px 12px;border-radius:7px;color:var(--text);font-size:0.9rem}.nav-dropdown a:hover{background:var(--surface-2);text-decoration:none}.nav-dropdown a.active{color:var(--primary);background:var(--primary-soft);font-weight:600}.header-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex-shrink:0}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text);cursor:pointer;transition:border-color 0.15s,color 0.15s,background 0.15s}.icon-btn:hover{border-color:var(--primary);color:var(--primary)}.icon-moon{display:none}[data-theme="dark"] .icon-sun{display:none}[data-theme="dark"] .icon-moon{display:inline-flex}.nav-burger{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:0.97rem;border:1px solid transparent;cursor:pointer;transition:transform 0.12s ease,box-shadow 0.15s ease,background 0.15s ease;white-space:nowrap}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--primary-strong)}[data-theme="dark"] .btn-primary{color:#0b1220}.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent-strong)}[data-theme="dark"] .btn-accent{color:#23180a}.btn-ghost{background:var(--surface);border-color:var(--border-strong);color:var(--text)}.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}.btn-sm{padding:7px 14px;font-size:0.88rem;border-radius:8px}.btn-lg{padding:12px 24px;font-size:1rem}.hero{position:relative;overflow:hidden;background:radial-gradient(900px 380px at 85% -10%,var(--primary-soft),transparent 65%),radial-gradient(700px 320px at -10% 110%,var(--accent-soft),transparent 60%),var(--bg);border-bottom:1px solid var(--border);padding:56px 0 50px}.hero-grid{display:grid;grid-template-columns:1.12fr 0.88fr;gap:40px;align-items:center}.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:0.83rem;font-weight:600;line-height:1.35;color:var(--primary);background:var(--surface);border:1px solid var(--border);padding:6px 14px;border-radius:999px;margin-bottom:16px;max-width:100%}.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 3px var(--success-soft);flex-shrink:0}.hero h1{font-size:clamp(1.85rem,3.1vw,2.38rem);line-height:1.22;margin:0 0 16px;color:var(--text-strong);letter-spacing:-0.02em}:lang(zh) .hero h1,:lang(zh-CN) .hero h1{font-size:clamp(1.9rem,3.8vw,2.75rem);line-height:1.25;letter-spacing:-0.01em}.hero h1 .hl{color:var(--primary)}.hero h1 .hl-accent{color:var(--accent)}.hero-sub{font-size:1.02rem;line-height:1.65;color:var(--muted);max-width:38em;margin:0 0 24px}.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}.hero-cta .btn-lg{padding:11px 20px;font-size:0.95rem}.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding-top:22px;border-top:1px dashed var(--border-strong)}.hero-stat b{display:block;font-size:1.28rem;line-height:1.2;color:var(--text-strong);margin-bottom:2px}.hero-stat span{display:block;font-size:0.82rem;line-height:1.35;color:var(--muted)}.hero-panel{background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:22px}.hero-panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:4px}.hero-panel h2,.hero-panel h3{margin:0 0 4px;font-size:1rem;display:flex;align-items:center;justify-content:space-between;gap:8px;border:none;padding:0}.hero-panel-head h2,.hero-panel-head h3{margin:0}.hero-panel-more{font-size:0.8rem;font-weight:600;color:var(--primary);white-space:nowrap}.hero-panel h2 .live,.hero-panel h3 .live{font-size:0.72rem;font-weight:600;color:var(--success);background:var(--success-soft);padding:3px 9px;border-radius:999px}.hero-panel .panel-note{font-size:0.82rem;color:var(--muted);margin:0 0 14px}.mini-coupon{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;background:var(--surface-2);transition:border-color 0.15s ease,background 0.15s ease}.mini-coupon:last-child{margin-bottom:0}.mini-coupon:hover{border-color:var(--primary);background:var(--surface)}.mini-coupon .mini-coupon-text{flex:1;min-width:0}.mini-coupon .mc-title{font-weight:700;font-size:0.9rem;color:var(--text-strong);line-height:1.35;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mini-coupon .mc-desc{font-size:0.78rem;color:var(--muted);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mini-coupon .mc-desc a{color:var(--primary)}.mini-coupon .mc-code{flex-shrink:0;font-family:var(--mono);font-size:0.8rem;font-weight:600;background:var(--surface);border:1px dashed var(--border-strong);border-radius:7px;padding:6px 10px;cursor:pointer;color:var(--accent-strong);white-space:nowrap;letter-spacing:0.5px;transition:all 0.15s ease}.mini-coupon .mc-code:hover{border-color:var(--accent);background:var(--accent-soft)}.section{padding:58px 0}.section-alt{background:var(--surface);border-block:1px solid var(--border)}.section-head{max-width:720px;margin-bottom:34px}.section-head .kicker{font-size:0.82rem;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}.section-head h2{font-size:clamp(1.4rem,2.6vw,1.9rem);margin:0 0 12px;color:var(--text-strong);line-height:1.3}.section-head p{color:var(--muted);margin:0}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:18px}.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:transform 0.15s ease,box-shadow 0.15s ease,border-color 0.15s ease}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--border-strong);text-decoration:none}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.card-cat{font-size:0.74rem;font-weight:700;color:var(--primary);background:var(--primary-soft);padding:3px 10px;border-radius:999px}.card-date{font-size:0.78rem;color:var(--muted)}.card-title{margin:0 0 8px;font-size:1.05rem;font-weight:700;color:var(--text-strong);line-height:1.45}.card-desc{margin:0 0 14px;font-size:0.9rem;color:var(--muted);flex:1}.card-more{font-size:0.86rem;font-weight:600;color:var(--primary)}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 22px}.feature .f-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:var(--primary-soft);color:var(--primary);font-size:1.3rem;margin-bottom:14px}.feature h3{margin:0 0 8px;font-size:1.02rem;color:var(--text-strong)}.feature p{margin:0 0 12px;font-size:0.9rem;color:var(--muted)}.feature a{font-size:0.88rem;font-weight:600}.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.why-item{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px}.why-num{flex-shrink:0;width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--accent-soft);color:var(--accent-strong);font-weight:800;font-size:0.95rem}.why-item h3{margin:0 0 5px;font-size:0.98rem;color:var(--text-strong)}.why-item p{margin:0;font-size:0.88rem;color:var(--muted)}main{min-height:60vh}.home-content{padding-top:52px;padding-bottom:72px}.home-content>h2:first-child{margin-top:0;padding-top:0}.page-shell{padding-top:22px;padding-bottom:72px}.page{padding:44px 0 70px}.breadcrumb{font-size:0.85rem;color:var(--muted);margin-bottom:18px}.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--primary)}.breadcrumb .sep{margin:0 7px;opacity:0.5}.page-title{font-size:clamp(1.6rem,3.2vw,2.2rem);line-height:1.3;margin:0 0 12px;color:var(--text-strong);letter-spacing:-0.01em}.page-lede{font-size:1.06rem;color:var(--muted);margin:0 0 30px;max-width:46em}main h2{font-size:1.42rem;margin:46px 0 14px;color:var(--text-strong);line-height:1.35;padding-top:8px}main h3{font-size:1.13rem;margin:30px 0 10px;color:var(--text-strong)}main h4{font-size:1rem;margin:22px 0 8px;color:var(--text-strong)}main p{margin:0 0 15px}main ul,main ol{margin:0 0 16px;padding-left:24px}main li{margin-bottom:7px}main li>ul,main li>ol{margin-top:7px}main a{font-weight:500}main code{font-family:var(--mono);font-size:0.88em;background:var(--code-bg);color:var(--code-text);padding:2px 7px;border-radius:6px;border:1px solid var(--border)}main pre{background:var(--code-bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;overflow-x:auto;margin:0 0 18px;line-height:1.6}main pre code{background:none;border:none;padding:0;font-size:0.88rem;color:var(--code-text)}main blockquote{margin:0 0 18px;padding:12px 18px;border-left:4px solid var(--primary);background:var(--surface);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--muted)}main blockquote p{margin:0}main hr{border:none;border-top:1px solid var(--border);margin:40px 0}.table-wrap{overflow-x:auto;margin:0 0 20px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface)}main table{width:100%;border-collapse:collapse;font-size:0.92rem;min-width:520px}main th,main td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}main thead th{background:var(--surface-2);font-weight:700;color:var(--text-strong);white-space:nowrap}main tbody tr:last-child td{border-bottom:none}main tbody tr:hover{background:var(--surface-2)}main td.num,main th.num{font-variant-numeric:tabular-nums;white-space:nowrap}.callout{display:block;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius-sm);padding:15px 18px;margin:0 0 20px;font-size:0.94rem;line-height:1.68}.callout:has(>.c-icon){display:flex;gap:13px}.callout p:last-child{margin-bottom:0}.callout .c-icon{flex-shrink:0;font-size:1.1rem;line-height:1.5}.callout-tip{border-left-color:var(--success);background:var(--success-soft)}.callout-warn,.callout-warning{border-left-color:var(--accent);background:var(--accent-soft)}.callout-aff,.callout-note,.callout-info{border-left-color:var(--primary);background:var(--primary-soft)}.cta-box{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;background:linear-gradient(120deg,var(--primary) 0%,#3b82f6 100%);color:#fff;border-radius:var(--radius);padding:24px 28px;margin:34px 0}.cta-box p{margin:4px 0 0;opacity:0.92;font-size:0.93rem}.cta-box strong{font-size:1.08rem}.cta-box .btn{background:#fff;color:var(--primary-strong)}.cta-box .btn:hover{background:var(--accent-soft)}ol.steps,div.steps{list-style:none;counter-reset:step;padding-left:0;margin:0 0 22px}ol.steps>li,div.steps>.step{counter-increment:step;position:relative;padding:0 0 20px 46px;border-left:2px dashed var(--border-strong);margin-left:16px;line-height:1.65}ol.steps>li:last-child,div.steps>.step:last-child{border-left-color:transparent;padding-bottom:4px}ol.steps>li::before,div.steps>.step::before{content:counter(step);position:absolute;left:-17px;top:-2px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;font-weight:700;font-size:0.9rem;border-radius:50%}[data-theme="dark"] ol.steps>li::before,[data-theme="dark"] div.steps>.step::before{color:#0b1220}ol.steps h3,ol.steps h4,div.steps h3,div.steps h4{margin:2px 0 6px;font-size:1.02rem;color:var(--text-strong)}ol.steps p,div.steps p{margin:0 0 6px;font-size:0.94rem;color:var(--muted)}ol.steps p:last-child,div.steps p:last-child{margin-bottom:0}.chip{display:inline-block;font-size:0.76rem;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);color:var(--muted);margin:0 6px 6px 0}main details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}main details summary{cursor:pointer;padding:14px 18px;font-weight:600;color:var(--text-strong);list-style:none;display:flex;align-items:center;gap:10px}main details summary::-webkit-details-marker{display:none}main details summary::before{content:"Q";flex-shrink:0;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);border-radius:7px;font-size:0.8rem;font-weight:800}main details[open] summary{border-bottom:1px solid var(--border)}main details .details-body{padding:14px 18px}main details .details-body p:last-child{margin-bottom:0}.coupon-group{margin-bottom:46px}.coupon-group>h2{margin-top:0;font-size:1.35rem;display:flex;align-items:center;gap:8px}.coupon-group-desc{color:var(--muted);font-size:0.94rem;margin-top:-6px;margin-bottom:20px}.coupon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px}.coupon-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;position:relative;transition:transform 0.2s cubic-bezier(0.16,1,0.3,1),box-shadow 0.2s ease,border-color 0.2s ease;box-shadow:0 1px 3px rgba(0,0,0,0.04)}.coupon-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px -6px rgba(0,0,0,0.09),0 4px 10px rgba(0,0,0,0.04);border-color:var(--border-strong)}[data-theme="dark"] .coupon-card{box-shadow:0 1px 3px rgba(0,0,0,0.3)}[data-theme="dark"] .coupon-card:hover{box-shadow:0 12px 28px -6px rgba(0,0,0,0.5),0 4px 10px rgba(0,0,0,0.3);border-color:rgba(255,255,255,0.18)}.coupon-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px}.coupon-discount-badge{display:inline-flex;flex-direction:column;padding:6px 14px;border-radius:10px;line-height:1.25;border:1px solid transparent}.coupon-discount-badge .cd-main{font-size:1.15rem;font-weight:800;letter-spacing:-0.01em}.coupon-discount-badge .cd-sub{font-size:0.72rem;font-weight:600;opacity:0.88;margin-top:1px}.cat-badge-vps{background:linear-gradient(135deg,rgba(37,99,235,0.1),rgba(59,130,246,0.16));color:#1d4ed8;border-color:rgba(37,99,235,0.22)}[data-theme="dark"] .cat-badge-vps{background:linear-gradient(135deg,rgba(59,130,246,0.18),rgba(96,165,250,0.24));color:#93c5fd;border-color:rgba(96,165,250,0.3)}.cat-badge-rs{background:linear-gradient(135deg,rgba(16,185,129,0.1),rgba(5,150,105,0.16));color:#047857;border-color:rgba(16,185,129,0.22)}[data-theme="dark"] .cat-badge-rs{background:linear-gradient(135deg,rgba(16,185,129,0.18),rgba(52,211,153,0.24));color:#6ee7b7;border-color:rgba(52,211,153,0.3)}.cat-badge-hosting{background:linear-gradient(135deg,rgba(139,92,246,0.1),rgba(124,58,237,0.16));color:#6d28d9;border-color:rgba(139,92,246,0.22)}[data-theme="dark"] .cat-badge-hosting{background:linear-gradient(135deg,rgba(139,92,246,0.18),rgba(167,139,250,0.24));color:#c4b5fd;border-color:rgba(167,139,250,0.3)}.cat-badge-discount{background:linear-gradient(135deg,rgba(245,158,11,0.12),rgba(217,119,6,0.18));color:#b45309;border-color:rgba(245,158,11,0.25)}[data-theme="dark"] .cat-badge-discount{background:linear-gradient(135deg,rgba(245,158,11,0.18),rgba(251,191,36,0.24));color:#fcd34d;border-color:rgba(251,191,36,0.3)}.coupon-cat{flex-shrink:0;font-size:0.73rem;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap}.cat-vps{background:var(--primary-soft);color:var(--primary)}.cat-rs{background:var(--success-soft);color:var(--success)}.cat-hosting{background:var(--accent-soft);color:var(--accent-strong)}.cat-discount{background:#f3e8ff;color:#7e22ce}[data-theme="dark"] .cat-discount{background:#2b1d42;color:#c4b5fd}.cat-other{background:var(--surface-2);color:var(--muted)}.coupon-card-header{margin-bottom:12px}.coupon-card-title{margin:0 0 5px;font-size:1.12rem;font-weight:700;color:var(--text-strong);line-height:1.35}.coupon-card-target{margin:0;font-size:0.82rem;color:var(--muted);display:flex;align-items:center;gap:5px;line-height:1.4}.coupon-card-target .icon-tag{flex-shrink:0;opacity:0.7}.coupon-product-link{font-size:0.76rem;color:var(--primary);font-weight:600;margin-left:6px;text-decoration:none;display:inline-flex;align-items:center;transition:opacity 0.15s ease;white-space:nowrap}.coupon-product-link:hover{text-decoration:underline}.coupon-price-hint{margin:5px 0 0;font-size:0.77rem;font-weight:600;color:var(--primary);background:var(--primary-soft);padding:3px 9px;border-radius:6px;display:inline-block;line-height:1.4}.coupon-badges{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.coupon-badges .chip{font-size:0.72rem;padding:2px 8px;margin:0;background:var(--surface-2);border-color:var(--border)}.coupon-codes-list{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}.coupon-code-row{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:6px 10px;transition:all 0.18s ease}.coupon-code-row:hover{background:var(--surface);border-color:var(--border-strong);box-shadow:0 1px 3px rgba(0,0,0,0.04)}[data-theme="dark"] .coupon-code-row{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.08)}[data-theme="dark"] .coupon-code-row:hover{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.15)}.code-text{font-family:var(--mono);font-size:0.88rem;font-weight:700;color:var(--text-strong);letter-spacing:0.025em;user-select:all;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.code-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.btn-code-copy{display:inline-flex;align-items:center;justify-content:center;gap:4px;font-family:var(--font);font-size:0.74rem;font-weight:600;color:var(--text);background:var(--surface);border:1px solid var(--border-strong);border-radius:6px;padding:4px 8px;height:28px;cursor:pointer;transition:all 0.15s ease;line-height:1}.btn-code-copy .icon-copy{color:var(--muted);transition:color 0.15s ease;flex-shrink:0}.btn-code-copy:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}.btn-code-copy:hover .icon-copy{color:var(--primary)}.btn-code-copy:active{transform:scale(0.96)}.btn-code-copy.is-copied{background:var(--success);color:#fff;border-color:var(--success)}.btn-code-copy.is-copied .icon-copy{color:#fff}.btn-code-go{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:4px 8px;height:28px;font-size:0.74rem;font-weight:600;background:var(--primary-soft);border:1px solid rgba(29,78,216,0.25);border-radius:6px;color:var(--primary);text-decoration:none;cursor:pointer;transition:all 0.15s ease;flex-shrink:0;line-height:1}.btn-code-go svg{color:currentColor;transition:transform 0.15s ease}.btn-code-go:hover{background:var(--primary);color:#ffffff;border-color:var(--primary);box-shadow:0 2px 6px rgba(37,99,235,0.25);text-decoration:none}.btn-code-go:hover svg{transform:translate(1px,-1px)}.btn-code-go:active{transform:scale(0.95)}.btn-cart-official{display:flex;align-items:center;justify-content:center;width:100%;padding:10px 16px;font-size:0.88rem;font-weight:700;text-align:center;text-decoration:none;background:var(--primary);color:#ffffff !important;border-radius:8px;box-shadow:0 2px 6px rgba(37,99,235,0.2);transition:all 0.18s ease;margin-bottom:12px;letter-spacing:0.01em}.btn-cart-official:hover{background:var(--primary-hover,#1d4ed8);box-shadow:0 4px 12px rgba(37,99,235,0.32);transform:translateY(-1px)}.btn-cart-official:active{transform:translateY(0)}.coupon-extra-wrap{margin-top:4px}.coupon-extra-toggle{display:inline-flex;align-items:center;gap:5px;font-size:0.76rem;font-weight:600;color:var(--muted);background:none;border:none;padding:4px 2px;cursor:pointer;transition:color 0.15s ease}.coupon-extra-toggle:hover{color:var(--primary)}.coupon-extra-toggle .caret{transition:transform 0.2s ease}.coupon-extra-toggle.is-expanded .caret{transform:rotate(180deg)}.coupon-extra-drawer{display:flex;flex-direction:column;gap:7px;margin-top:6px;padding:8px;background:var(--surface-2);border:1px dashed var(--border-strong);border-radius:8px}.coupon-extra-drawer[hidden]{display:none}.coupon-card-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:10px;border-top:1px solid var(--border)}.coupon-meta-stats{display:flex;align-items:center;gap:12px;font-size:0.74rem;color:var(--muted);line-height:1.3}.meta-tag{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.meta-success{color:var(--success);font-weight:600}[data-theme="dark"] .coupon-direct-btn{box-shadow:0 2px 8px rgba(0,0,0,0.4)}.coupon-sync{font-size:0.84rem;color:var(--muted);background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--radius-sm);padding:10px 16px}.giscus-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-top:20px;min-height:200px}.giscus-placeholder{text-align:center;color:var(--muted);font-size:0.92rem;padding:40px 16px}.search-modal{position:fixed;inset:0;z-index:300}.search-backdrop{position:absolute;inset:0;background:rgba(10,16,28,0.5);backdrop-filter:blur(3px)}.search-panel{position:relative;max-width:640px;margin:12vh auto 0;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}.search-input-row{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--border);color:var(--muted)}.search-input-row input{flex:1;border:none;outline:none;background:none;font-size:1.02rem;color:var(--text);font-family:var(--font)}.search-kbd{font-size:0.72rem;font-family:var(--mono);border:1px solid var(--border);border-radius:6px;padding:3px 8px;color:var(--muted);white-space:nowrap}.search-results{max-height:56vh;overflow-y:auto;padding:8px}.search-results:empty::after{content:attr(data-empty-hint);display:block;text-align:center;color:var(--muted);font-size:0.88rem;padding:26px 0}.search-result{display:block;padding:11px 14px;border-radius:10px;color:var(--text)}.search-result:hover{background:var(--surface-2);text-decoration:none}.search-result .sr-cat{font-size:0.72rem;color:var(--primary);font-weight:700;margin-right:8px}.search-result .sr-title{font-weight:600;color:var(--text-strong)}.search-result .sr-desc{font-size:0.82rem;color:var(--muted);margin-top:2px}.search-noresult{text-align:center;color:var(--muted);font-size:0.9rem;padding:26px 0}.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(16px);background:var(--text-strong);color:var(--bg);font-size:0.9rem;font-weight:600;padding:10px 22px;border-radius:999px;box-shadow:var(--shadow);z-index:400;opacity:0;transition:opacity 0.2s ease,transform 0.2s ease;pointer-events:none}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:48px 0 26px;margin-top:20px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:30px;border-bottom:1px solid var(--border)}.footer-about p{font-size:0.88rem;color:var(--muted);margin:14px 0 0}.footer-aff{font-size:0.8rem !important;background:var(--accent-soft);border-radius:8px;padding:8px 12px;color:var(--accent-strong) !important}.footer-col h4,.footer-col-title{margin:0 0 14px;font-size:0.92rem;font-weight:700;color:var(--text-strong)}.footer-col a{display:block;font-size:0.88rem;color:var(--muted);padding:4px 0}.footer-col a:hover{color:var(--primary)}.footer-bottom{padding-top:22px}.footer-bottom p{margin:0 0 4px;font-size:0.8rem;color:var(--muted)}.footer-bottom a{color:var(--muted);text-decoration:underline}@media (max-width:1040px){.hero-grid{grid-template-columns:1fr;gap:34px}.hero-panel{max-width:580px}.footer-grid{grid-template-columns:1fr 1fr;gap:26px}.nav-burger{display:inline-flex}.header-cta{display:none}.site-nav{position:fixed;top:64px;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--border);flex-direction:column;align-items:stretch;padding:14px 18px;gap:2px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity 0.2s ease,transform 0.2s ease,visibility 0.2s;z-index:90}body.nav-open .site-nav{opacity:1;visibility:visible;transform:translateY(0)}body.nav-open{overflow:hidden}.nav-link{padding:12px 14px;font-size:1rem}.nav-dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 6px 16px;display:none;min-width:0}.nav-item.has-children.open .nav-dropdown{display:block}.nav-item.has-children>.nav-link .caret{margin-left:auto}}@media (max-width:640px){body{font-size:15px}.hero{padding:44px 0 40px}.section{padding:42px 0}.hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}.footer-grid{grid-template-columns:1fr;gap:22px}.coupon-grid{grid-template-columns:1fr}.card-grid{grid-template-columns:1fr}.cta-box{flex-direction:column;align-items:flex-start}main table{min-width:480px}.search-panel{margin:8vh 14px 0}}@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important}html{scroll-behavior:auto}}.read-progress{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:120;pointer-events:none}.read-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width 0.1s linear}.crumb-bar{padding:14px 0 0}.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:0.83rem;color:var(--muted)}.breadcrumbs a{color:var(--muted)}.breadcrumbs a:hover{color:var(--primary);text-decoration:none}.crumb-sep{opacity:0.45}.crumb-current{color:var(--text);font-weight:600}.article-meta{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;margin:14px 0 20px;font-size:0.82rem;color:var(--muted)}.am-item{display:inline-flex;align-items:center;gap:5px}.am-item + .am-item::before{content:"";width:3px;height:3px;border-radius:50%;background:var(--border-strong);margin-right:6px}.am-cat{background:var(--primary-soft);color:var(--primary);font-weight:600;padding:3px 10px;border-radius:999px}.am-cat::before{display:none}.am-author{color:var(--text)}.answer-box{margin:0 0 18px;padding:16px 20px;background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--radius-sm)}.answer-head{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px}.answer-badge{display:inline-flex;align-items:center;background:var(--primary-soft);color:var(--primary);font-size:0.76rem;font-weight:700;padding:2px 9px;border-radius:6px}.answer-hint{font-size:0.74rem;color:var(--muted)}.answer-box p{margin:0;font-size:0.96rem;line-height:1.76;color:var(--text)}.keyfacts{margin:0 0 24px;padding:15px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}.keyfacts-head{font-size:0.82rem;font-weight:700;color:var(--text-strong);margin-bottom:8px}.keyfacts ul{margin:0;padding-left:18px}.keyfacts li{margin:5px 0;font-size:0.92rem;color:var(--text)}.keyfacts-src{margin:10px 0 0;font-size:0.76rem;color:var(--muted)}.toc-box{margin:0 0 28px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);overflow:hidden}.toc-box>summary{cursor:pointer;padding:12px 16px;font-weight:600;font-size:0.92rem;display:flex;align-items:center;gap:8px;list-style:none}.toc-box>summary::-webkit-details-marker{display:none}.toc-box>summary::before{content:"▸";font-size:0.8rem;color:var(--muted);transition:transform 0.16s ease}.toc-box[open]>summary::before{transform:rotate(90deg)}.toc-count{margin-left:auto;font-size:0.74rem;font-weight:500;color:var(--muted);background:var(--surface);border:1px solid var(--border);padding:1px 8px;border-radius:999px}.toc-list{padding:4px 16px 14px;display:grid;grid-template-columns:1fr 1fr;gap:3px 20px;border-top:1px solid var(--border);margin-top:-1px;padding-top:10px}.toc-item{display:block;padding:5px 0;font-size:0.88rem;color:var(--text);border-left:2px solid transparent;padding-left:10px;line-height:1.5}.toc-item:hover{color:var(--primary);text-decoration:none;border-left-color:var(--primary);background:var(--primary-soft);border-radius:0 6px 6px 0}.toc-l3{padding-left:26px;font-size:0.84rem;color:var(--muted)}.heading-anchor{margin-left:8px;font-size:0.72em;color:var(--muted);opacity:0;text-decoration:none;vertical-align:middle;transition:opacity 0.15s}h2:hover .heading-anchor,h3:hover .heading-anchor,.heading-anchor:focus{opacity:1}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0 0}.tag{font-size:0.78rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--border);padding:3px 10px;border-radius:999px}.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:18px 0 0;padding-top:18px;border-top:1px dashed var(--border)}.share-label{font-size:0.82rem;color:var(--muted)}.share-btn{font-size:0.82rem;padding:6px 13px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);cursor:pointer;font-family:inherit;transition:border-color 0.15s,color 0.15s}.share-btn:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}.article-foot{margin-top:44px;padding-bottom:8px}.related-block{margin-top:8px}.related-head{font-size:1.1rem;margin:0 0 14px;padding:0;border:none}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related-card{display:flex;flex-direction:column;gap:6px;padding:15px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);transition:border-color 0.15s,transform 0.15s}.related-card:hover{border-color:var(--primary);transform:translateY(-2px);text-decoration:none}.rc-cat{font-size:0.72rem;color:var(--primary);font-weight:600}.rc-title{font-weight:600;font-size:0.95rem;color:var(--text-strong);line-height:1.45}.rc-desc{font-size:0.8rem;color:var(--muted);line-height:1.6}.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}.pn{display:flex;flex-direction:column;gap:4px;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2)}.pn:hover{border-color:var(--primary);text-decoration:none}.pn-next{text-align:right}.pn-label{font-size:0.74rem;color:var(--muted)}.pn-title{font-size:0.92rem;font-weight:600;color:var(--text-strong)}.to-top{position:fixed;right:22px;bottom:24px;width:44px;height:44px;border-radius:50%;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow);cursor:pointer;z-index:80;transition:transform 0.15s,border-color 0.15s,color 0.15s}.to-top:hover{transform:translateY(-2px);border-color:var(--primary);color:var(--primary)}.coupon-info-banner{display:flex;align-items:flex-start;gap:14px;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius-sm);padding:14px 18px;margin:18px 0 14px;box-shadow:0 1px 3px rgba(0,0,0,0.03)}[data-theme="dark"] .coupon-info-banner{background:var(--surface-2);border-color:rgba(255,255,255,0.1);border-left-color:var(--primary)}.coupon-info-banner .cib-icon{color:var(--primary);display:inline-flex;align-items:center;margin-top:2px;flex-shrink:0}.coupon-info-banner .cib-content{font-size:0.88rem;line-height:1.55;color:var(--text)}.coupon-info-banner .cib-content strong{color:var(--text-strong)}.coupon-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:16px 0 20px;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2)}.coupon-tools .ct-label{font-size:0.82rem;color:var(--muted);font-weight:600}.ct-chip{display:inline-flex;align-items:center;font-size:0.82rem;padding:5px 12px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);cursor:pointer;font-family:inherit;transition:all 0.15s ease}.ct-chip:hover{border-color:var(--primary);color:var(--primary)}.ct-chip.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}[data-theme="dark"] .ct-chip.active{color:#fff}.ct-count-badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;font-size:0.72rem;font-weight:700;border-radius:999px;background:var(--surface-2);color:var(--muted);border:1px solid var(--border);margin-left:5px;line-height:1;transition:all 0.15s ease}.ct-chip.active .ct-count-badge{background:rgba(255,255,255,0.22);color:#fff;border-color:transparent}.ct-search-wrap{display:inline-flex;align-items:center;margin-left:4px}.ct-search-input{font-family:inherit;font-size:0.82rem;padding:5px 12px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);width:190px;outline:none;transition:border-color 0.15s ease,width 0.2s ease}.ct-search-input:focus{border-color:var(--primary);width:220px}.ct-count{margin-left:auto;font-size:0.8rem;color:var(--muted)}.site-map{padding:8px 0 24px}.map-group{margin:0 0 26px}.map-group h2{font-size:1.05rem;margin:0 0 10px;padding:0;border:none;display:flex;align-items:center;gap:9px}.map-count{font-size:0.74rem;font-weight:500;color:var(--muted);background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:1px 8px}.map-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:6px 18px}.map-list li{display:flex;flex-direction:column;padding:7px 0;border-bottom:1px dashed var(--border)}.map-list a{font-weight:600;font-size:0.93rem}.map-desc{font-size:0.78rem;color:var(--muted)}.tool-shell{padding:6px 0 30px;max-width:900px}.tool-panel{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:22px;box-shadow:var(--shadow-sm);margin-bottom:22px}.calc-presets{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px dashed var(--border)}.calc-preset-label{font-size:0.82rem;font-weight:600;color:var(--muted)}.calc-preset-btn{font-family:inherit;font-size:0.8rem;font-weight:600;padding:5px 12px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text);cursor:pointer;transition:all 0.15s ease}.calc-preset-btn:hover{border-color:var(--primary);color:var(--primary)}.calc-preset-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.tool-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.tool-field{display:flex;flex-direction:column;gap:7px}.tool-field label{font-size:0.85rem;font-weight:600}.tool-field select,.tool-field input[type="number"],.tool-field input[type="text"]{font-family:inherit;font-size:0.95rem;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text)}.tool-field .hint{font-size:0.76rem;color:var(--muted)}.tool-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.tool-result{margin-top:20px}.tool-verdict{padding:16px 18px;border-radius:var(--radius-sm);background:var(--primary-soft);border:1px solid var(--border);margin-bottom:14px}.tool-verdict h3{margin:0 0 6px;font-size:1.05rem;border:none;padding:0}.tool-verdict p{margin:0;font-size:0.92rem}.calc-big-price{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;margin-top:4px !important}.calc-big-price strong{font-size:1.55rem;color:var(--primary)}.calc-cny-badge{display:inline-block;font-size:0.92rem;font-weight:700;color:var(--accent-strong);background:var(--accent-soft);padding:2px 10px;border-radius:999px}.calc-tax-note{font-size:0.84rem;color:var(--muted)}.cny-sub{font-size:0.8rem;color:var(--muted);font-weight:400}.tool-table-wrap{overflow-x:auto}.tool-disclaimer{font-size:0.78rem;color:var(--muted);margin-top:12px}.forum-header-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0 28px}.f-stat-card{padding:16px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:4px;align-items:center;text-align:center}.f-stat-num{font-size:1.45rem;font-weight:800;color:var(--primary);line-height:1.2}.f-stat-label{font-size:0.8rem;color:var(--muted)}.forum-nav-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 18px;padding:10px 14px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm)}.f-tab-btn{font-size:0.86rem;padding:7px 15px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);cursor:pointer;font-family:inherit;font-weight:500;transition:all 0.18s ease}.f-tab-btn:hover{border-color:var(--primary);color:var(--primary)}.f-tab-btn.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;box-shadow:0 2px 8px rgba(29,78,216,0.25)}[data-theme="dark"] .f-tab-btn.active{color:#0b1220}.forum-topic-list{display:flex;flex-direction:column;gap:14px;margin-bottom:32px}.forum-card{display:flex;gap:16px;padding:18px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);transition:transform 0.16s ease,border-color 0.16s ease,box-shadow 0.16s ease;align-items:flex-start}.forum-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow)}.forum-card-badge{font-size:0.74rem;font-weight:700;padding:4px 10px;border-radius:6px;white-space:nowrap;line-height:1.4;margin-top:2px}.badge-newbie{background:var(--success-soft);color:var(--success);border:1px solid rgba(21,128,61,0.2)}.badge-coupon{background:var(--accent-soft);color:var(--accent);border:1px solid rgba(217,119,6,0.2)}.badge-tech{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(29,78,216,0.2)}.badge-network{background:#e0f2fe;color:#0284c7;border:1px solid rgba(2,132,199,0.2)}[data-theme="dark"] .badge-network{background:#0c2a42;color:#38bdf8}.forum-card-content{flex:1;min-width:0}.forum-card-title{margin:0 0 6px;font-size:1.05rem;font-weight:600;line-height:1.45}.forum-card-title a{color:var(--text-strong)}.forum-card-title a:hover{color:var(--primary);text-decoration:underline}.forum-card-desc{margin:0 0 10px;font-size:0.88rem;color:var(--muted);line-height:1.6}.forum-card-meta{font-size:0.78rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}.tag-solved{display:inline-block;padding:1px 7px;border-radius:4px;background:var(--success-soft);color:var(--success);font-weight:600}.forum-faq-anchor{scroll-margin-top:86px}.discuss-interactive-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:20px 0;box-shadow:var(--shadow-sm)}.discuss-action-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--border);margin-bottom:20px}.discuss-action-text h3,.discuss-action-text h4{margin:0 0 4px;font-size:0.98rem;color:var(--text-strong)}.discuss-action-text p{margin:0;font-size:0.84rem;color:var(--muted)}.giscus-wrap{min-height:180px}.giscus-fallback-card{text-align:center;padding:36px 20px;background:var(--surface-2);border:1px dashed var(--border-strong);border-radius:var(--radius-sm)}.giscus-fallback-card .g-icon{font-size:2.2rem;margin-bottom:8px}.giscus-fallback-card h3{margin:0 0 6px;font-size:1.15rem}.giscus-fallback-card p{max-width:540px;margin:0 auto 16px;font-size:0.88rem;color:var(--muted)}.g-tips{display:flex;justify-content:center;gap:16px;font-size:0.8rem;color:var(--muted);flex-wrap:wrap}.onboard-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:20px 0 34px}.onboard-step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px 18px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;position:relative;transition:transform 0.16s ease,border-color 0.16s ease}.onboard-step:hover{transform:translateY(-2px);border-color:var(--primary)}.ob-badge{display:inline-block;align-self:flex-start;font-size:0.72rem;font-weight:700;padding:2px 8px;border-radius:4px;background:var(--primary-soft);color:var(--primary);margin-bottom:10px;text-transform:uppercase;letter-spacing:0.5px}.onboard-step h3,.onboard-step h4{margin:0 0 8px;font-size:1rem;font-weight:700;color:var(--text-strong)}.onboard-step p{margin:0 0 14px;font-size:0.84rem;color:var(--muted);line-height:1.55;flex:1}.ob-link{font-size:0.82rem;font-weight:600;color:var(--primary)}.ob-link:hover{text-decoration:underline}.forum-preview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:20px 0 10px}.forum-preview-card{display:flex;flex-direction:column;padding:18px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);text-decoration:none;color:inherit;transition:transform 0.16s ease,border-color 0.16s ease}.forum-preview-card:hover{transform:translateY(-2px);border-color:var(--primary);text-decoration:none}.f-tag{align-self:flex-start;font-size:0.72rem;font-weight:700;padding:2px 8px;border-radius:4px;margin-bottom:8px}.tag-newbie{background:var(--success-soft);color:var(--success)}.tag-coupon{background:var(--accent-soft);color:var(--accent)}.tag-tech{background:var(--primary-soft);color:var(--primary)}.tag-network{background:#e0f2fe;color:#0284c7}[data-theme="dark"] .tag-network{background:#0c2a42;color:#38bdf8}.forum-preview-card h3,.forum-preview-card h4{margin:0 0 6px;font-size:0.98rem;font-weight:600;color:var(--text-strong);line-height:1.45}.forum-preview-card p{margin:0 0 10px;font-size:0.83rem;color:var(--muted);line-height:1.55;flex:1}.f-more{font-size:0.8rem;font-weight:600;color:var(--primary)}.product-cards-quick{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:22px 0 34px}.pc-quick-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;position:relative;transition:transform 0.16s ease,border-color 0.16s ease}.pc-quick-item:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow)}.pc-quick-item.featured{border-color:var(--primary);border-width:2px;background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%)}.pc-badge{align-self:flex-start;font-size:0.72rem;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--surface-2);color:var(--text-strong);border:1px solid var(--border);margin-bottom:8px}.pc-quick-item.featured .pc-badge{background:var(--primary);color:#fff;border-color:var(--primary)}[data-theme="dark"] .pc-quick-item.featured .pc-badge{color:#0b1220}.pc-quick-item h3{margin:0 0 6px;font-size:1.15rem;color:var(--text-strong)}.pc-price{font-size:1.65rem;font-weight:800;color:var(--accent);line-height:1.2;margin-bottom:12px}.pc-price span{font-size:0.8rem;font-weight:500;color:var(--muted);margin-left:2px}.pc-specs{list-style:none;padding:0;margin:0 0 14px;font-size:0.85rem;color:var(--text);line-height:1.8;border-top:1px solid var(--border);padding-top:10px}.pc-specs li::before{content:"✓ ";color:var(--success);font-weight:700}.pc-desc{font-size:0.8rem;color:var(--muted);margin:0 0 18px;line-height:1.5;flex:1}.pc-actions{display:flex;gap:8px;flex-wrap:wrap}button.coupon-code.copied,button.mc-code.copied{background:var(--success) !important;color:#fff !important;border-color:var(--success) !important;transition:all 0.15s ease}@media (max-width:900px){.forum-header-stats{grid-template-columns:repeat(2,1fr)}.onboard-steps{grid-template-columns:repeat(2,1fr)}.product-cards-quick{grid-template-columns:1fr}}@media (max-width:640px){.forum-header-stats{grid-template-columns:1fr 1fr;gap:10px}.forum-preview-grid{grid-template-columns:1fr}.onboard-steps{grid-template-columns:1fr}.forum-card{flex-direction:column;gap:8px}.discuss-action-bar{flex-direction:column;align-items:flex-start}}@media (max-width:480px){.coupon-code-row{padding:5px 8px;gap:6px}.code-text{font-size:0.8rem}.btn-code-copy{padding:3px 6px;font-size:0.7rem;height:26px}.btn-code-go{padding:3px 6px;font-size:0.7rem;height:26px}.btn-cart-official{font-size:0.84rem;padding:8px 12px}}.quiz-options{display:grid;gap:10px}.quiz-opt{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);cursor:pointer}.quiz-opt:hover{border-color:var(--primary)}.quiz-opt input{margin-top:3px}.quiz-opt strong{display:block;font-size:0.93rem}.quiz-opt span{font-size:0.8rem;color:var(--muted)}.footer-bottom a{color:inherit;text-decoration:underline}:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}@media print{.site-header,.site-footer,.to-top,.read-progress,.search-modal,.share-row,.related-block,.prevnext,.coupon-tools,.answer-hint,.skip-link,.heading-anchor{display:none !important}body{background:#fff;color:#000;font-size:12pt}a{color:#000;text-decoration:underline}.answer-box,.keyfacts,.toc-box{border:1px solid #999;background:#fff}main table{min-width:0}}@media (max-width:900px){.related-grid{grid-template-columns:1fr 1fr}.toc-list{grid-template-columns:1fr}.map-list{grid-template-columns:1fr}}@media (max-width:640px){.related-grid{grid-template-columns:1fr}.prevnext{grid-template-columns:1fr}.pn-next{text-align:left}.tool-panel{padding:16px}.to-top{right:14px;bottom:16px}}.code-copy{position:absolute;top:8px;right:8px;font-size:0.74rem;font-family:inherit;padding:4px 10px;border-radius:6px;border:1px solid var(--border-strong);background:var(--surface);color:var(--muted);cursor:pointer;opacity:0;transition:opacity 0.15s,color 0.15s,border-color 0.15s}pre:hover .code-copy,.code-copy:focus{opacity:1}.code-copy:hover{color:var(--primary);border-color:var(--primary)}tr.row-active>td{background:var(--primary-soft);font-weight:600}@media (max-width:780px){.code-copy{opacity:1}}.lang-switch{display:inline-flex;align-items:center;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;padding:2px;gap:2px;height:38px;flex-shrink:0}.lang-opt{display:inline-flex;align-items:center;justify-content:center;padding:0 8px;height:32px;border-radius:7px;font-size:0.78rem;font-weight:700;color:var(--muted);text-decoration:none;transition:background 0.15s ease,color 0.15s ease,box-shadow 0.15s ease;line-height:1;white-space:nowrap}.lang-opt:hover{color:var(--primary);background:var(--surface);text-decoration:none}.lang-opt.active{background:var(--primary);color:#ffffff;box-shadow:0 1px 3px rgba(29,78,216,0.28)}[data-theme="dark"] .lang-opt.active{color:#0b1220}.footer-lang{display:inline-flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;font-size:0.82rem;color:var(--muted)}.footer-lang a{color:var(--text);font-weight:600;text-decoration:none;padding:2px 8px;border-radius:6px;border:1px solid var(--border);background:var(--surface-2)}.footer-lang a:hover,.footer-lang a.active{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);text-decoration:none}@media (max-width:480px){.lang-switch{height:34px}.lang-opt{padding:0 6px;height:28px;font-size:0.73rem}}