:root{color-scheme:light;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body{margin:0;padding:0;min-height:100vh;min-width:320px}#root{width:100%;min-height:100vh}:root{--bg: #ffffff;--bg-subtle: #f7f6f3;--bg-gray: #f1f1ef;--bg-hover: rgba(55, 53, 47, .06);--bg-active: rgba(55, 53, 47, .1);--text: #37352f;--text-secondary: #6b6b66;--text-muted: #9b9a97;--text-on-dark: #ffffff;--border: #e9e9e7;--border-soft: rgba(55, 53, 47, .09);--border-strong: #d8d7d3;--accent: #2383e2;--accent-hover: #1a6db8;--accent-soft: rgba(35, 131, 226, .1);--plus: #d9730d;--plus-bg: rgba(217, 115, 13, .08);--plus-border: rgba(217, 115, 13, .2);--callout-blue-bg: #e7f3f8;--callout-blue-text: #0b6e99;--callout-blue-border: #cfe3eb;--callout-yellow-bg: #fdecc8;--callout-yellow-text: #a8721a;--callout-yellow-border: #f0d79d;--callout-red-bg: #fbe4e4;--callout-red-text: #b54a43;--callout-red-border: #ecc6c3;--callout-gray-bg: #f1f1ef;--callout-gray-border: #d8d7d3;--btn-bg: #37352f;--btn-bg-hover: #2a2925;--btn-bg-active: #1f1e1c;--btn-text: #ffffff;--shadow-xs: 0 1px 2px rgba(15, 15, 15, .04);--shadow-sm: 0 1px 3px rgba(15, 15, 15, .05);--shadow-md: 0 4px 10px rgba(15, 15, 15, .06);--r-sm: 3px;--r-md: 6px;--r-lg: 8px;--r-xl: 12px;--font-sans: -apple-system, BlinkMacSystemFont, "Inter", "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Monaco, Consolas, "Liberation Mono", monospace;--fs-xs: .75rem;--fs-sm: .8125rem;--fs-base: .9375rem;--fs-lg: 1rem;--fs-xl: 1.25rem;--fs-2xl: 1.75rem;--tr-fast: .12s ease;--tr: .16s ease;--tr-slow: .26s cubic-bezier(.2, .8, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}html,body{background:var(--bg);color:var(--text)}body{font-family:var(--font-sans);font-size:var(--fs-base);line-height:1.6;letter-spacing:0;font-feature-settings:"kern" 1,"liga" 1,"calt" 1;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-synthesis:none;min-height:100vh}.app-container{width:100%;background:var(--bg);position:relative}.main-content{width:100%;max-width:860px;margin:0 auto;padding:1.75rem 2rem 2rem;display:flex;flex-direction:column}.header{position:sticky;top:0;z-index:100;width:100%;background:#ffffffd9;backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid transparent;box-shadow:0 1px 0 transparent;min-height:3.75rem;padding:.875rem 1.75rem;display:flex;justify-content:space-between;align-items:center;transition:border-color var(--tr),box-shadow var(--tr),background var(--tr)}.header--scrolled{border-bottom-color:var(--border);box-shadow:0 1px 2px #0f0f0f09;background:#ffffffeb}.header-left{display:flex;align-items:center;gap:.75rem}.header-logo{width:30px;height:30px;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-subtle);display:flex;align-items:center;justify-content:center;flex-shrink:0}.header-logo img{width:100%;height:100%;object-fit:contain}.header-title{font-size:1.0625rem;font-weight:700;color:var(--text);letter-spacing:0;line-height:1.2}.language-dropdown{position:relative}.dropdown-button{display:inline-flex;align-items:center;gap:.4rem;background:transparent;color:var(--text-secondary);border:1px solid transparent;border-radius:var(--r-md);padding:.375rem .625rem;font-size:var(--fs-sm);font-weight:500;font-family:inherit;cursor:pointer;transition:background var(--tr),color var(--tr),border-color var(--tr)}.dropdown-button:hover{background:var(--bg-hover);color:var(--text);border-color:transparent}.dropdown-button svg{color:var(--text-muted)}.dropdown-button-text{line-height:1}.dropdown-content{position:absolute;right:0;top:calc(100% + 4px);min-width:160px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:4px;opacity:0;visibility:hidden;transform:translateY(-4px) scale(.97);transform-origin:top right;transition:opacity .16s ease,transform .18s cubic-bezier(.2,.8,.2,1),visibility .16s ease;z-index:200}.language-dropdown.open .dropdown-content{opacity:1;visibility:visible;transform:translateY(0) scale(1)}.dropdown-item{padding:.5rem .75rem;font-size:var(--fs-sm);color:var(--text);border-radius:var(--r-md);cursor:pointer;transition:background var(--tr-fast)}.dropdown-item:hover{background:var(--bg-hover)}.dropdown-item.active{background:var(--bg-hover);font-weight:600}.tab-container{width:100%;margin-bottom:1.5rem;display:flex;justify-content:center}.tabs{position:relative;display:inline-flex;gap:2px;padding:5px;background:#f7f6f3eb;border:1px solid var(--border-soft);border-radius:12px;box-shadow:0 1px 2px #0f0f0f09;overflow-x:auto;scrollbar-width:none;max-width:100%;-webkit-overflow-scrolling:touch}.tabs::-webkit-scrollbar{display:none}.tab{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:2.25rem;padding:.5625rem 1rem;background:transparent;border:none;border-radius:7px;color:var(--text-secondary);font-family:inherit;font-size:.875rem;font-weight:600;letter-spacing:0;cursor:pointer;white-space:nowrap;transition:color .18s ease;-webkit-user-select:none;user-select:none}.tab:hover,.tab.active,.tab[aria-selected=true]{color:var(--text)}.tab-indicator{position:absolute;top:5px;bottom:5px;left:0;background:var(--bg);border-radius:8px;box-shadow:0 1px 3px #0f0f0f14,0 0 0 .5px #37352f14;pointer-events:none;opacity:0;z-index:0;transition:transform .36s cubic-bezier(.22,1,.36,1),width .36s cubic-bezier(.22,1,.36,1),opacity .18s ease}.tab-indicator--ready{opacity:1}.tab-icon{flex-shrink:0;color:currentColor;opacity:.9}.tab-text{line-height:1}.tab-icon-container{position:relative;display:inline-flex;align-items:center;justify-content:center}.new-badge{position:absolute;top:-3px;right:-4px;width:6px;height:6px;background:#e03e3e;border-radius:50%;border:1.5px solid var(--bg)}.card{width:100%;background:transparent;border:none;box-shadow:none;padding:0}.tab-panels{width:100%}.tab-content{display:none;width:100%;opacity:0;transform:translateY(6px)}.tab-content.active{display:block;opacity:1;transform:translateY(0);animation:panel-fade-in .18s ease both}h1{font-size:var(--fs-2xl);font-weight:700;letter-spacing:0;line-height:1.25;color:var(--text);margin-bottom:1rem}h2{font-size:var(--fs-xl);font-weight:600;letter-spacing:0;line-height:1.3;color:var(--text);margin:1.25rem 0 .75rem}h3{font-size:var(--fs-lg);font-weight:600;letter-spacing:0;color:var(--text);margin:1rem 0 .5rem}p{color:var(--text);line-height:1.65;text-wrap:pretty}ol{list-style:none;counter-reset:steps;margin:.75rem 0 1.5rem;padding:0}ol>li{counter-increment:steps;position:relative;padding:.375rem 0 .375rem 2rem;color:var(--text);line-height:1.6}ol>li:before{content:counter(steps);position:absolute;left:0;top:.375rem;width:1.25rem;height:1.25rem;display:inline-flex;align-items:center;justify-content:center;background:var(--bg-subtle);color:var(--text-secondary);border-radius:50%;font-size:.6875rem;font-weight:600;font-variant-numeric:tabular-nums;line-height:1}a{color:var(--accent);text-decoration:none;transition:color var(--tr-fast)}a:hover{color:var(--accent-hover);text-decoration:underline;text-underline-offset:2px}hr{border:none;border-top:1px solid var(--border);margin:1.75rem 0}.note{font-size:var(--fs-sm);color:var(--text-muted);text-align:center;letter-spacing:0}.shortcut-container{margin:.75rem 0 0}.shortcut-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}.shortcut-column{display:flex;flex-direction:column;gap:.75rem;height:100%}.shortcut-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.125rem;transition:border-color var(--tr),background var(--tr);display:flex;flex-direction:column;gap:.875rem;flex:1}.shortcut-card:hover{border-color:var(--border-strong)}.premium-card{background:var(--bg);border:1px solid var(--border);position:relative}.premium-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--plus);border-radius:var(--r-lg) 0 0 var(--r-lg);opacity:.55}.shortcut-item{display:flex;flex-direction:column;gap:.75rem;height:100%}.shortcut-buttons-row{display:flex;flex-direction:column;gap:.5rem}.shortcut-buttons-row>.shortcut-button{flex:1}.shortcut-meta{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem;margin-top:auto;padding-top:.125rem}.shortcut-version{font-family:var(--font-mono);font-size:var(--fs-xs);font-weight:500;color:var(--text-secondary);background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--r-sm);padding:2px 6px;letter-spacing:0}.premium-card .shortcut-version{color:var(--plus);background:var(--plus-bg);border-color:var(--plus-border)}.shortcut-requirement{font-size:var(--fs-xs);color:var(--text-muted);font-weight:400}.shortcut-button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.625rem 1rem;background:var(--btn-bg);color:var(--btn-text);text-decoration:none;border:1px solid var(--btn-bg);border-radius:var(--r-md);font-size:var(--fs-sm);font-weight:500;letter-spacing:0;cursor:pointer;transition:background var(--tr),border-color var(--tr),transform var(--tr-fast);text-align:center}.shortcut-button:hover{background:var(--btn-bg-hover);border-color:var(--btn-bg-hover);color:var(--btn-text);text-decoration:none}.shortcut-button:hover svg{transform:translateY(1px)}.shortcut-button:active{background:var(--btn-bg-active);transform:translateY(.5px)}.shortcut-button svg{color:currentColor;flex-shrink:0;transition:transform 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.shortcut-history-content{opacity:1}.shortcut-history-list{margin:0 .875rem;padding-top:.75rem;padding-bottom:.125rem;border-top:1px solid var(--border)}.shortcut-history-list-inner{display:flex;flex-direction:column;gap:.625rem;padding:.75rem 0}.shortcut-history-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-md);padding:.75rem;display:flex;flex-direction:column;gap:.5rem}.shortcut-history-meta{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem}.shortcut-history-version{font-family:var(--font-mono);font-size:var(--fs-xs);font-weight:500;color:var(--text-secondary);background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--r-sm);padding:2px 6px}.shortcut-history-requirement{font-size:var(--fs-xs);color:var(--text-muted)}.api-sub-tabs{position:relative;display:inline-flex;gap:2px;padding:5px;margin-bottom:1rem;background:#f7f6f3eb;border:1px solid var(--border-soft);border-radius:12px;box-shadow:0 1px 2px #0f0f0f09;max-width:100%}.api-sub-tab{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:2.25rem;padding:.5625rem 1rem;background:transparent;border:none;border-radius:7px;font-family:inherit;font-size:.875rem;font-weight:600;letter-spacing:0;color:var(--text-secondary);cursor:pointer;transition:background .18s ease,color .18s ease,box-shadow .18s ease;-webkit-user-select:none;user-select:none;white-space:nowrap}.api-sub-tab:hover{color:var(--text);background:var(--bg-hover)}.api-sub-tab.active,.api-sub-tab[aria-selected=true]{color:var(--text);background:var(--bg);box-shadow:0 1px 3px #0f0f0f14,0 0 0 .5px #37352f14}.api-sub-tab svg{color:currentColor;opacity:.85;flex-shrink:0}.api-sub-tab-text{line-height:1}.api-sub-panels{width:100%}.api-sub-content{display:none;width:100%;opacity:0;transform:translateY(6px)}.api-sub-content.active{display:block;opacity:1;transform:translateY(0);animation:panel-fade-in .16s ease both}@keyframes panel-fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.site-link{display:inline-flex;align-items:center;gap:.25rem;margin-left:.5rem;padding:.2rem .5rem;background:var(--bg-subtle);color:var(--text);border:1px solid var(--border);border-radius:var(--r-sm);font-size:var(--fs-xs);font-weight:500;text-decoration:none;transition:background var(--tr-fast),border-color var(--tr-fast)}.site-link:hover{background:var(--bg-gray);border-color:var(--border-strong);color:var(--text);text-decoration:none}.site-link svg{color:var(--text-muted);flex-shrink:0}.site-link:after{content:none}.custom-intro{font-size:var(--fs-base);color:var(--text);margin-bottom:1rem;line-height:1.65}.provider-list{background:var(--callout-gray-bg);border:1px solid var(--callout-gray-border);border-radius:var(--r-md);padding:.875rem 1rem;margin-bottom:1.25rem;font-family:var(--font-mono);font-size:var(--fs-xs);line-height:1.75;color:var(--text);word-wrap:break-word;overflow-wrap:break-word;word-break:break-all}.url-notice{background:var(--callout-yellow-bg);border:1px solid var(--callout-yellow-border);border-radius:var(--r-md);padding:.75rem 1rem;margin-bottom:1.5rem;line-height:1.6;font-size:var(--fs-sm);color:var(--text)}.notice-intro{background:var(--callout-blue-bg);border:1px solid var(--callout-blue-border);border-radius:var(--r-md);padding:.75rem 1rem;margin-bottom:1rem;font-size:var(--fs-sm);line-height:1.65;color:var(--text)}.notice-container{display:flex;flex-direction:column;gap:.625rem;margin-top:0}.notice-item{padding:1rem 1.125rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);cursor:pointer;transition:border-color var(--tr),background var(--tr)}.notice-item:hover{border-color:var(--border-strong);background:var(--bg-subtle)}.notice-item.urgent{background:var(--callout-red-bg);border-color:var(--callout-red-border)}.notice-item.urgent:hover{background:var(--callout-red-bg);border-color:var(--callout-red-text)}.notice-item.urgent .notice-heading{color:var(--callout-red-text)}.notice-item.warning{background:var(--callout-yellow-bg);border-color:var(--callout-yellow-border)}.notice-item.warning:hover{background:var(--callout-yellow-bg);border-color:var(--callout-yellow-text)}.notice-item.warning .notice-heading{color:var(--callout-yellow-text)}.notice-date{font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--text-muted);letter-spacing:0;margin-bottom:.375rem}.notice-heading{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;font-size:var(--fs-lg);font-weight:600;color:var(--text);margin-bottom:.5rem;margin-top:0}.notice-content{color:var(--text);font-size:var(--fs-base);line-height:1.65}.notice-content p{margin-bottom:.5rem}.notice-content p:last-child{margin-bottom:0}.notice-new{display:inline-flex;align-items:center;padding:1px 6px;background:#e03e3e;color:#fff;font-size:.625rem;font-weight:600;border-radius:var(--r-sm);letter-spacing:.02em;text-transform:uppercase}.read-more-link{margin-top:.875rem;text-align:left}.read-more-link a{display:inline-flex;align-items:center;gap:.25rem;padding:.375rem .75rem;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:var(--r-md);font-size:var(--fs-sm);font-weight:500;text-decoration:none;transition:background var(--tr),border-color var(--tr)}.read-more-link a:hover{background:var(--bg-subtle);border-color:var(--border-strong);color:var(--text);text-decoration:none}.notice-item.urgent .read-more-link a,.notice-item.warning .read-more-link a{background:#ffffffb3}.contact-intro{background:var(--callout-blue-bg);border:1px solid var(--callout-blue-border);border-radius:var(--r-md);padding:.75rem 1rem;margin-bottom:1.25rem;font-size:var(--fs-sm);line-height:1.65;color:var(--text)}.contact-simple{display:flex;flex-direction:column;gap:1.25rem}.contact-links{display:flex;flex-direction:column;gap:.5rem}.contact-link{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:var(--r-lg);text-decoration:none;font-size:var(--fs-base);font-weight:500;transition:background var(--tr),border-color var(--tr)}.contact-link:hover{background:var(--bg-subtle);border-color:var(--border-strong);color:var(--text);text-decoration:none}.contact-link svg{color:var(--text-secondary);flex-shrink:0}.contact-link img{flex-shrink:0;border-radius:var(--r-sm)}.contact-divider{height:1px;background:var(--border);margin:.25rem 0}.social-section{display:flex;flex-direction:column;gap:.75rem}.social-simple{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.qr-card{padding:1.25rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);text-align:center}.qr-card h3{margin:0 0 .875rem;font-size:var(--fs-base);font-weight:600;color:var(--text)}.qr-card p{margin:0;font-size:var(--fs-xs);color:var(--text-muted);line-height:1.5}.qr-display-container{width:180px;height:180px;margin:0 auto .75rem;border-radius:var(--r-lg);overflow:hidden;background:#fff;border:1px solid var(--border);display:flex;align-items:center;justify-content:center}.qr-image{width:100%;height:100%;object-fit:contain}.social-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.social-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;transition:border-color var(--tr)}.social-card:hover{border-color:var(--border-strong)}.social-card-header{display:flex;align-items:center;gap:.75rem;padding:.875rem 1rem;background:var(--bg-subtle);border-bottom:1px solid var(--border)}.social-icon{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--r-md);color:#fff;flex-shrink:0}.xiaohongshu-icon{background:#ff2442}.wechat-icon{background:#07c160}.social-title{font-weight:600;color:var(--text);font-size:var(--fs-sm)}.social-card-body{padding:1rem;display:flex;flex-direction:column;align-items:center;gap:.625rem}.social-note{text-align:center;color:var(--text-muted);font-size:var(--fs-xs)}.automation-intro{color:var(--text-secondary);font-size:var(--fs-base);line-height:1.65;margin-bottom:1.25rem}.sms-example-section{margin:1rem 0 1.75rem}.sms-example-title{display:flex;align-items:center;gap:.5rem;font-size:var(--fs-lg);font-weight:600;color:var(--text);margin-bottom:.5rem}.sms-example-desc{color:var(--text-secondary);font-size:var(--fs-sm);margin-bottom:.875rem;line-height:1.6}.sms-example-card{background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--r-md);padding:.875rem 1rem;color:var(--text);font-size:var(--fs-sm);line-height:1.65;margin-bottom:.625rem;font-family:var(--font-mono);white-space:pre-wrap;word-break:break-word}.sms-example-tip{font-size:var(--fs-xs);color:var(--text-muted);text-align:left;padding:.375rem 0;letter-spacing:0}.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;margin-top:1rem}.video-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.25rem;display:flex;flex-direction:column;align-items:center;transition:border-color var(--tr)}.video-card:hover{border-color:var(--border-strong)}.video-card h2{margin:0 0 .375rem;font-size:var(--fs-lg);font-weight:600;text-align:center}.video-card p{margin:0 0 1rem;text-align:center;color:var(--text-secondary);font-size:var(--fs-sm);line-height:1.6}.video-card video{width:100%;max-width:320px;border-radius:var(--r-md);border:1px solid var(--border);display:block;background:var(--bg-subtle)}.video-title-area{min-height:auto;display:flex;flex-direction:column}.tab:focus-visible,.api-sub-tab:focus-visible,.dropdown-button:focus-visible,.contact-link:focus-visible,.qr-card:focus-visible,.shortcut-button:focus-visible,.shortcut-history-summary:focus-visible,.read-more-link a:focus-visible,.site-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-md)}.tab:focus-visible,.api-sub-tab:focus-visible{outline:none;box-shadow:inset 0 0 0 1.5px #2383e261}@media (max-width: 768px){.main-content{padding:1.25rem 1rem 1.5rem}.header{min-height:3.5rem;padding:.75rem 1rem}.header-logo{width:28px;height:28px}.header-title{font-size:1rem}.tab-container{justify-content:stretch;overflow:visible}.tabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));width:100%;overflow:visible;scroll-snap-type:none}.tab{flex:none;min-width:0;min-height:3.25rem;padding:.45rem .35rem;flex-direction:column;font-size:.75rem;gap:.25rem;line-height:1.1;white-space:normal;scroll-snap-align:none}.tab-text{max-width:100%;line-height:1.1;text-align:center;overflow-wrap:anywhere}.tab-icon{width:16px;height:16px}h1{font-size:1.5rem}h2{font-size:1.125rem}.shortcut-grid{grid-template-columns:1fr}.api-sub-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%}.api-sub-tab{flex:1;min-width:0;padding:.5rem}.api-sub-tab-text{line-height:1.15;text-align:center;overflow-wrap:anywhere}.contact-link{padding:.75rem .875rem}.social-simple{grid-template-columns:1fr}.qr-display-container{width:180px;height:180px}}@media (max-width: 480px){.header-title{font-size:.9375rem}.tab{min-width:0;padding:.45rem .25rem;font-size:.6875rem}.api-sub-tab{gap:.25rem;padding:.45rem .35rem;font-size:.75rem}.api-sub-tab svg{width:14px;height:14px}.qr-display-container{width:160px;height:160px}.dropdown-button-text{display:none}}@media (max-width: 360px){.main-content{padding:1rem .875rem 1.25rem}.qr-display-container{width:140px;height:140px}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.tab-content.active,.api-sub-content.active{opacity:1!important;transform:none!important;animation:none!important}}