:root{--bg: #080808;--surface: #151515;--surface-alt: #202020;--primary: #FFD400;--primary-hover: #FFE45C;--secondary: #FFB800;--text: #F7F7F7;--text-muted: #BDBDBD;--border: #373737;--glow: rgba(255, 212, 0, .22);--glow-strong: rgba(255, 212, 0, .42);--glow-soft: rgba(255, 212, 0, .08);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--container-max: 1280px;--header-height: 74px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", Consolas, monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{background-color:var(--bg);color:var(--text);font-family:var(--font-sans);line-height:1.65;scroll-behavior:smooth;overflow-x:hidden;-webkit-text-size-adjust:100%}body{background-color:var(--bg);background-image:radial-gradient(circle at 80% 8%,rgba(255,212,0,.09) 0%,transparent 40%),radial-gradient(circle at 15% 35%,rgba(255,184,0,.05) 0%,transparent 45%),linear-gradient(180deg,#080808,#0c0c0c,#080808);color:var(--text);min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease,box-shadow .2s ease}ul,ol{list-style:none}img,svg{max-width:100%;display:block}button,input{font:inherit;color:inherit}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 24px}.section{padding:84px 0;position:relative;border-bottom:1px solid rgba(55,55,55,.55)}.section-alt{background-color:#0d0d0d}.section-header{max-width:820px;margin-bottom:48px}.section-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;background:#ffd4001a;border:1px solid rgba(255,212,0,.45);border-radius:999px;color:var(--primary);font-size:.8125rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}.section-title{font-size:clamp(1.65rem,3vw,2.35rem);font-weight:800;color:var(--text);line-height:1.25;margin-bottom:14px;letter-spacing:-.01em}.section-title span,.highlight-yellow{color:var(--primary)}.section-desc{color:var(--text-muted);font-size:1.025rem;line-height:1.7}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-weight:700;font-size:.95rem;cursor:pointer;border:1px solid transparent;white-space:nowrap;transition:all .2s ease}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#080808;border-color:var(--primary);box-shadow:0 0 20px #ffd40038}.btn-primary:hover,.btn-primary:focus-visible{background:var(--primary-hover);border-color:var(--primary-hover);box-shadow:0 0 28px #ffd4006b;transform:translateY(-1px)}.btn-outline{background-color:var(--surface);color:var(--text);border-color:var(--border)}.btn-outline:hover,.btn-outline:focus-visible{border-color:var(--primary);color:var(--primary);background-color:var(--surface-alt)}.btn-ghost-yellow{background:#ffd40014;color:var(--primary);border:1px solid rgba(255,212,0,.45)}.btn-ghost-yellow:hover{background:var(--primary);color:#080808}.site-header{position:sticky;top:0;z-index:90;height:var(--header-height);background:#080808eb;backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:1.25rem;color:var(--primary);letter-spacing:.02em;flex-shrink:0}.brand-logo-icon{width:36px;height:36px;border-radius:8px;background:var(--surface);border:1px solid var(--primary);display:flex;align-items:center;justify-content:center;box-shadow:0 0 12px #ffd40040}.brand-logo-sub{font-size:.72rem;color:var(--text-muted);font-weight:600;display:block;letter-spacing:.08em;line-height:1.1}.main-nav{display:flex;align-items:center;gap:6px}.nav-link{padding:8px 13px;border-radius:var(--radius-sm);font-size:.92rem;font-weight:600;color:var(--text-muted);border:1px solid transparent}.nav-link:hover{color:var(--primary);background:var(--surface)}.nav-link.active{color:var(--primary);background:#ffd4001a;border-color:#ffd40073}.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.search-trigger-btn{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.875rem;cursor:pointer;transition:all .2s ease}.search-trigger-btn:hover,.search-trigger-btn:focus-visible{border-color:var(--primary);color:var(--primary);box-shadow:0 0 0 2px #ffd40033;outline:none}.search-kbd{padding:2px 6px;background:var(--surface-alt);border:1px solid var(--border);border-radius:4px;font-family:var(--font-mono);font-size:.74rem;color:var(--primary)}.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:40px;height:40px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--primary);cursor:pointer}.mobile-drawer{display:none;background:#0d0d0d;border-bottom:2px solid var(--primary);padding:16px 24px 22px}.mobile-drawer.open{display:block}.mobile-nav-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:16px}.hero-section{padding:72px 0 80px;position:relative;overflow:hidden;border-bottom:1px solid var(--border)}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;background:#ffd4001a;border:1px solid var(--primary);border-radius:999px;color:var(--primary);font-size:.82rem;font-weight:700;margin-bottom:20px}.hero-title{font-size:clamp(2rem,4.2vw,3.35rem);font-weight:900;line-height:1.18;color:var(--text);margin-bottom:18px;letter-spacing:-.02em}.hero-title .hero-accent{color:var(--primary);text-shadow:0 0 28px rgba(255,212,0,.28)}.hero-subtitle{font-size:clamp(1.02rem,1.6vw,1.2rem);color:var(--text-muted);margin-bottom:28px;max-width:620px;line-height:1.75}.hero-cta-group{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}.hero-quick-Search{max-width:540px;margin-bottom:24px}.inline-search-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-muted);cursor:pointer;text-align:left;transition:all .2s ease}.inline-search-trigger:hover,.inline-search-trigger:focus-visible{border-color:var(--primary);box-shadow:0 0 0 3px #ffd4002e;color:var(--text);outline:none}.hero-meta-pills{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.hero-pill{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--radius-sm);padding:12px 14px}.hero-pill-label{font-size:.78rem;color:var(--text-muted);margin-bottom:4px}.hero-pill-value{font-size:1rem;font-weight:800;color:var(--primary)}.hero-visual-box{background:linear-gradient(145deg,#141414,#0a0a0a);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;position:relative;box-shadow:0 20px 50px #000000b3,inset 0 0 0 1px #ffd4001f}.hero-visual-box:before{content:"";position:absolute;top:-1px;left:24px;right:24px;height:2px;background:linear-gradient(90deg,transparent,var(--primary),transparent)}.lightning-svg-wrap{width:100%;aspect-ratio:4 / 3;display:flex;align-items:center;justify-content:center}.visual-caption-bar{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;font-size:.8rem;color:var(--text-muted);font-family:var(--font-mono)}.plans-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}.plan-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 26px;display:flex;flex-direction:column;justify-content:space-between;position:relative;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}.plan-card:hover{transform:translateY(-4px);border-color:#ffd400a6}.plan-card.featured{background:linear-gradient(180deg,#1c1908 0%,var(--surface) 38%);border:2px solid var(--primary);box-shadow:0 0 36px #ffd4002e}.plan-badge{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;padding:4px 12px;border-radius:999px;font-size:.78rem;font-weight:700;background:var(--surface-alt);color:var(--text-muted);border:1px solid var(--border);margin-bottom:16px}.plan-card.featured .plan-badge{background:var(--primary);color:#080808;border-color:var(--primary)}.plan-name{font-size:1.45rem;font-weight:800;color:var(--text);margin-bottom:10px}.plan-price-row{display:flex;align-items:baseline;gap:6px;margin-bottom:12px}.plan-price{font-size:2.5rem;font-weight:900;color:var(--primary);line-height:1.05;letter-spacing:-.02em}.plan-traffic-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;background:var(--surface-alt);border:1px solid rgba(255,212,0,.35);border-radius:var(--radius-sm);color:var(--primary);font-weight:800;font-size:1.02rem;margin-bottom:18px}.plan-rule-box{background:#080808a6;border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;margin-bottom:18px;font-size:.875rem}.plan-rule-box strong{color:var(--primary)}.plan-source-box{background:#ffd4000d;border-left:3px solid var(--primary);padding:10px 12px;font-size:.85rem;color:var(--text-muted);margin-bottom:18px}.plan-features{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}.plan-features li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:var(--text)}.plan-features li:before{content:"⚡";color:var(--primary);font-size:.85rem;flex-shrink:0;margin-top:2px}.plan-notes{border-top:1px dashed var(--border);padding-top:14px;margin-bottom:22px;font-size:.82rem;color:var(--text-muted);display:flex;flex-direction:column;gap:6px}.compliance-banner{margin-top:28px;background:var(--surface);border:1px solid rgba(255,212,0,.4);border-radius:var(--radius-md);padding:18px 22px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;font-size:.86rem;color:var(--text-muted)}.compliance-item strong{color:var(--primary);display:block;margin-bottom:4px}.table-wrap{width:100%;overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md)}.compare-table{width:100%;border-collapse:collapse;min-width:680px}.compare-table th,.compare-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--border);font-size:.92rem}.compare-table th{background:var(--surface-alt);color:var(--primary);font-weight:800}.compare-table td:first-child{font-weight:700;color:var(--text);width:20%}.compare-table td.featured-col,.compare-table th.featured-col{background:#ffd4000f;border-left:1px solid rgba(255,212,0,.3);border-right:1px solid rgba(255,212,0,.3)}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.step-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px 20px;display:flex;flex-direction:column;justify-content:space-between}.step-num{font-family:var(--font-mono);font-size:.82rem;font-weight:800;color:#080808;background:var(--primary);display:inline-block;padding:3px 10px;border-radius:4px;margin-bottom:14px;align-self:flex-start}.step-title{font-size:1.15rem;font-weight:800;margin-bottom:8px;color:var(--text)}.step-sub{font-size:.86rem;color:var(--primary);margin-bottom:12px;font-weight:600}.step-list{display:flex;flex-direction:column;gap:8px;font-size:.88rem;color:var(--text-muted);margin-bottom:18px}.cards-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.cards-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.tech-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:26px 24px;display:flex;flex-direction:column;justify-content:space-between;transition:border-color .2s ease,transform .2s ease}.tech-card:hover{border-color:var(--primary);transform:translateY(-2px)}.category-tag{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;background:#ffd4001f;border:1px solid rgba(255,212,0,.45);color:var(--primary);border-radius:4px;font-size:.76rem;font-weight:700;align-self:flex-start;margin-bottom:12px}.card-title{font-size:1.2rem;font-weight:800;color:var(--text);margin-bottom:10px;line-height:1.38}.card-title a:hover{color:var(--primary)}.card-desc{font-size:.92rem;color:var(--text-muted);margin-bottom:18px;line-height:1.65}.ordered-steps{display:flex;flex-direction:column;gap:10px;margin:14px 0 18px}.ordered-steps li{font-size:.88rem;color:var(--text);padding-left:14px;border-left:2px solid var(--primary)}.faq-list{display:flex;flex-direction:column;gap:14px}.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:border-color .2s ease}.faq-item[open]{border-color:var(--primary);box-shadow:0 0 20px #ffd4001a}.faq-summary{padding:18px 22px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:700;font-size:1.02rem;color:var(--text);list-style:none;user-select:none}.faq-summary::-webkit-details-marker{display:none}.faq-item[open] .faq-summary{color:var(--primary);background:#ffd4000f;border-bottom:1px solid var(--border)}.faq-icon{width:26px;height:26px;border-radius:50%;border:1px solid var(--primary);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-weight:900;flex-shrink:0;transition:transform .2s ease,background-color .2s ease}.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--primary);color:#080808}.faq-answer{padding:18px 22px;color:var(--text-muted);font-size:.95rem;line-height:1.75}.article-shell{max-width:880px;margin:0 auto}.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;color:var(--text-muted);margin-bottom:24px}.breadcrumb-nav a:hover{color:var(--primary)}.article-body{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 36px;margin-bottom:36px}.article-body h2{font-size:1.45rem;color:var(--primary);margin:28px 0 14px;padding-bottom:8px;border-bottom:1px solid var(--border)}.article-body h2:first-child{margin-top:0}.article-body h3{font-size:1.15rem;color:var(--text);margin:20px 0 10px;padding-left:12px;border-left:3px solid var(--primary)}.article-body p{color:var(--text);font-size:1.02rem;line-height:1.85;margin-bottom:16px}.search-modal-backdrop{position:fixed;inset:0;z-index:200;background:#000000d1;backdrop-filter:blur(8px);display:none;align-items:flex-start;justify-content:center;padding:88px 16px 24px}.search-modal-backdrop.active{display:flex}.search-modal-dialog{width:100%;max-width:680px;background:var(--surface);border:2px solid var(--primary);border-radius:var(--radius-lg);box-shadow:0 24px 64px #000000d9,0 0 32px #ffd40038;overflow:hidden;max-height:calc(100vh - 120px);display:flex;flex-direction:column}.search-input-bar{display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--surface-alt);border-bottom:1px solid var(--border)}.search-input-field{flex:1;background:#080808;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text);font-size:1rem;outline:none}.search-input-field:focus{border-color:var(--primary);box-shadow:0 0 0 2px #ffd40040}.search-quick-tags{padding:12px 20px;border-bottom:1px solid var(--border);display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8rem}.quick-tag-btn{padding:4px 10px;border-radius:999px;background:var(--surface-alt);border:1px solid var(--border);color:var(--primary);cursor:pointer;font-weight:600}.quick-tag-btn:hover{background:var(--primary);color:#080808}.search-results-container{padding:16px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.search-result-item{display:block;padding:14px 16px;background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--radius-sm)}.search-result-item:hover{border-color:var(--primary)}.search-result-title{font-weight:800;color:var(--primary);margin-bottom:4px;font-size:.98rem}.search-result-excerpt{font-size:.86rem;color:var(--text-muted);line-height:1.55}.search-result-excerpt mark{background:#ffd40040;color:var(--primary);padding:0 3px;border-radius:2px}.site-footer{margin-top:auto;background:#050505;border-top:2px solid var(--border);padding:64px 0 36px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr 1.2fr .9fr;gap:32px;margin-bottom:40px}.footer-heading{font-size:.95rem;font-weight:800;color:var(--primary);margin-bottom:14px;letter-spacing:.04em}.footer-links{display:flex;flex-direction:column;gap:9px;font-size:.88rem;color:var(--text-muted)}.footer-links a:hover{color:var(--primary)}.footer-bottom{padding-top:24px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.82rem;color:var(--text-muted)}@media(max-width:1080px){.main-nav{display:none}.mobile-menu-btn{display:inline-flex}.hero-grid{grid-template-columns:1fr;gap:32px}.plans-grid{grid-template-columns:1fr;max-width:580px;margin:0 auto}.steps-grid,.cards-grid-3{grid-template-columns:repeat(2,1fr)}.compliance-banner{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.container{padding:0 16px}.section{padding:56px 0}.hero-section{padding:44px 0 56px}.hero-meta-pills,.steps-grid,.cards-grid-3,.cards-grid-2,.footer-grid{grid-template-columns:1fr}.article-body{padding:24px 18px}.search-kbd{display:none}.header-cta-btn{padding:8px 12px;font-size:.82rem}}@media(max-width:430px){.brand-logo-sub{display:none}.hero-cta-group .btn{width:100%}.plan-card{padding:24px 18px}.plan-price{font-size:2.15rem}.mobile-nav-list{grid-template-columns:1fr}}