/* 呦呦视频 · 一帧回响 / 原创响应式视觉系统 */
:root {
  --paper: #f8f8f2;
  --white: #ffffff;
  --ink: #213e34;
  --green: #193c32;
  --muted: #728078;
  --lime: #d4f375;
  --line: #e1e6dc;
  --soft: #eef2e8;
  --warm: #f2ecdf;
  --radius: 14px;
  --ease: cubic-bezier(.23,1,.32,1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.75 -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif; -webkit-font-smoothing: antialiased; }
body.modal-open { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:hover { color: #598137; }
button, a { touch-action: manipulation; }
button:active, .button:active { transform: scale(.98); }
:focus-visible { outline: 3px solid #8aa64b; outline-offset: 4px; }
img { display: block; max-width: 100%; height: auto; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
h1,h2,h3,h4,h5,h6,p { margin: 0; }
h1,h2,h3,h4,h5,h6 { line-height: 1.4; font-weight: 650; }
h2 { font-size: 29px; letter-spacing: -.8px; }
h3 { font-size: 17px; }
small { font-size: 12px; }
[hidden] { display: none !important; }
::selection { background: var(--lime); color: var(--green); }
.wrap { max-width: 1280px; width: calc(100% - 80px); margin: 0 auto; }
.skip { position: absolute; top: -90px; left: 20px; z-index: 200; background: var(--lime); padding: 12px; }
.skip:focus { top: 10px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; }
.muted { color: var(--muted); }
.pill { display: inline-flex; align-items: center; gap: 6px; border-radius: 30px; padding: 4px 11px; font-size: 11px; line-height: 1.6; background: var(--soft); }
.pill.lime { background: var(--lime); color: var(--green); }
.dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.button { display: inline-flex; gap: 10px; align-items: center; justify-content: center; border: 1px solid var(--green); border-radius: 6px; background: var(--green); color: white; padding: 11px 20px; font-size: 13px; font-weight: 600; transition: background .2s, transform .16s; }
.button:hover { background: #2d5141; color: white; }
.button.lime { background: var(--lime); border-color: var(--lime); color: var(--green); }
.button.outline { background: transparent; color: var(--green); border-color: #c4cec1; }
.button.white { background: white; color: var(--green); border-color: white; }
.text-link { display: inline-flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.text-link svg { width: 16px; }
.json-link { border: none; background: transparent; font-size: 11px; color: var(--muted); padding: 7px 0; }
.json-link:hover { color: var(--green); text-decoration: underline; }
.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 26px; }
.section-head .eyebrow { color: #78855a; margin-bottom: 9px; }
.section-head p { font-size: 13px; color: var(--muted); margin-top: 9px; }
.section-head-right { display: flex; gap: 16px; align-items: center; }
.topline { background: var(--green); color: #dce5d5; font-size: 11px; padding: 7px 0; }
.topline .wrap { display: flex; justify-content: space-between; }
.topline strong { color: var(--lime); font-weight: 500; }
.header { background: rgba(248,248,242,.98); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; min-height: 88px; gap: 38px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { width: 46px; height: 46px; border-radius: 11px; }
.brand-name { display: block; font-size: 29px; letter-spacing: 3px; line-height: 1.25; font-weight: 750; }
.brand-desc { font-size: 10px; letter-spacing: 1.7px; color: var(--muted); }
.nav { display: flex; align-items: center; gap: 27px; margin-left: auto; }
.nav a { font-size: 13px; padding: 31px 0 27px; border-bottom: 3px solid transparent; white-space: nowrap; }
.nav a.active { border-color: var(--green); font-weight: 700; }
.header-action { padding: 9px 17px; white-space: nowrap; }
.menu-toggle { display: none; padding: 9px; background: none; border: 1px solid var(--line); border-radius: 6px; }
.search-row { display: flex; gap: 20px; align-items: center; padding: 18px 0; }
.search-form { display: flex; align-items: center; background: #eeefe8; border-radius: 6px; padding: 0 14px; min-width: 280px; width: 52%; gap: 10px; }
.search-form svg { width: 17px; color: var(--muted); }
.search-form input { background: none; border: 0; width: 100%; padding: 11px 0; outline: none; font-size: 12px; min-width: 0; }
.search-form:focus-within { outline: 2px solid #89a465; }
.search-form button { background: transparent; border: none; font-size: 11px; color: var(--muted); padding: 5px 0 5px 10px; border-left: 1px solid #d3dacd; white-space: nowrap; }
.hot-links { display: flex; gap: 17px; align-items: center; font-size: 11px; color: #758071; white-space: nowrap; }
.hot-links a { color: #596b54; }
.hero { position: relative; overflow: hidden; border-radius: var(--radius); min-height: 530px; background: var(--green); color: white; isolation: isolate; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg,rgba(8,32,23,.86),rgba(10,33,24,.52) 43%,rgba(10,33,24,.02) 76%),linear-gradient(0deg,rgba(5,27,17,.55),transparent 30%); }
.hero-content { padding: 56px; max-width: 670px; }
.hero .pill { background: #e0f3ae21; border: 1px solid #ddecba55; color: #e5f4d0; font-size: 11px; margin-bottom: 24px; }
.hero h1 { font-size: clamp(34px,4.25vw,58px); letter-spacing: -1.5px; font-weight: 650; line-height: 1.42; }
.hero h1 .brand-heading { display: block; font-size: 13px; letter-spacing: 4px; font-weight: 500; margin-bottom: 16px; color: #d6e8c7; }
.hero h1 em { color: #d6ef98; font-style: normal; }
.hero p { font-size: 13px; color: #d2dfd0; max-width: 400px; margin: 19px 0 26px; line-height: 1.9; }
.hero-actions { display: flex; gap: 20px; align-items: center; }
.hero-actions .text-link { color: #edf3e5; }
.hero-bottom { position: absolute; left: 56px; bottom: 27px; right: 34px; display: flex; justify-content: space-between; align-items: center; color: #d8e4d2; font-size: 10px; }
.hero-pager { display: flex; gap: 12px; align-items: center; }
.hero-pager button { color: #cad6c5; background: none; border: 0; padding: 6px; font: 11px monospace; }
.hero-pager button.active { color: var(--lime); border-bottom: 1px solid var(--lime); }
.hero-pager .pager-line { width: 52px; height: 1px; background: #8eae7e; }
.hero-side { position: absolute; right: 25px; top: 25px; writing-mode: vertical-rl; letter-spacing: 5px; font-size: 10px; color: #eff5e5; }
.quick-grid { display: grid; grid-template-columns: repeat(4,1fr); padding: 26px 0; border-bottom: 1px solid var(--line); }
.quick-item { display: flex; gap: 14px; align-items: center; padding: 8px 28px; border-left: 1px solid var(--line); }
.quick-item:first-child { border: 0; padding-left: 8px; }
.quick-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: var(--soft); flex-shrink: 0; }
.quick-icon svg { width: 22px; height: 22px; }
.quick-item strong { display: block; font-size: 13px; margin-bottom: 4px; }
.quick-item span { font-size: 11px; color: var(--muted); }
.filterbar { display: flex; align-items: center; gap: 8px; margin: 24px 0; overflow-x: auto; scrollbar-width: none; }
.filterbar button { background: transparent; border: 1px solid transparent; border-radius: 30px; padding: 7px 19px; font-size: 12px; white-space: nowrap; }
.filterbar button.active { background: var(--green); color: white; }
.filterbar button:hover:not(.active) { background: var(--soft); }
.filter-note { margin-left: auto; color: var(--muted); font-size: 11px; white-space: nowrap; }
.media-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px 24px; }
.media-card { min-width: 0; }
.media-cover { position: relative; width: 100%; border: 0; display: block; padding: 0; margin: 0; border-radius: 9px; overflow: hidden; aspect-ratio: 16/10; background: #d7dfd1; text-align: left; }
.media-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.media-cover::after { content: ''; position: absolute; inset: 35% 0 0; background: linear-gradient(transparent,#08251999); }
.media-cover:hover img { transform: scale(1.04); }
.card-badge { position: absolute; top: 13px; left: 13px; z-index: 1; padding: 3px 9px; color: white; background: #17372dd9; border-radius: 3px; font-size: 10px; }
.play-circle { display: grid; place-items: center; position: absolute; top: 50%; left: 50%; width: 53px; height: 53px; border-radius: 50%; border: 1px solid #ffffffaa; background: #fafcf448; backdrop-filter: blur(6px); color: white; z-index: 2; transform: translate(-50%,-50%) scale(.9); opacity: 0; transition: opacity .2s,transform .2s; }
.play-circle svg { fill: currentColor; width: 22px; stroke-width: 0; }
.media-cover:hover .play-circle,.media-cover:focus-visible .play-circle { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.cover-bottom { position: absolute; bottom: 12px; left: 13px; right: 13px; display: flex; justify-content: space-between; z-index: 1; color: white; font-size: 10px; }
.card-info { padding: 15px 1px 0; }
.card-info h3 { font-size: 16px; margin-bottom: 8px; }
.card-info p { color: var(--muted); font-size: 12px; line-height: 1.8; }
.card-meta { display: flex; justify-content: space-between; align-items: center; color: #7c8579; font-size: 10px; border-top: 1px solid var(--line); padding-top: 11px; margin-top: 13px; }
.card-meta .meta-actions { display: flex; gap: 13px; }
.meta-actions span,.like-button { display: inline-flex; align-items: center; gap: 4px; }
.meta-actions svg,.like-button svg { width: 13px; height: 13px; }
.like-button { border: 0; background: none; color: inherit; padding: 0; font-size: 10px; }
.like-button[aria-pressed=true] { color: #678342; }
.like-button[aria-pressed=true] svg { fill: #d5e7b4; }
.tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 11px; }
.tags span { font-size: 10px; color: #738267; background: #edf0e5; border-radius: 3px; padding: 1px 6px; }
.disclaimer { font-size: 11px; color: #838b7d; line-height: 1.8; margin-top: 22px; }
.service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.service-card { padding: 29px; background: var(--paper); }
.service-number { color: #97a67c; font: 13px/1 monospace; margin-bottom: 27px; display: flex; justify-content: space-between; }
.service-card h3 { margin-bottom: 12px; }
.service-card p { color: var(--muted); font-size: 12px; }
.service-card .text-link { font-size: 11px; margin-top: 20px; }
.ai-section { background: var(--green); color: #f3f8e9; border-radius: 14px; padding: 44px; display: grid; grid-template-columns: .95fr 1.05fr; gap: 50px; margin: 64px 0 0; overflow: hidden; position: relative; }
.ai-section .eyebrow { color: var(--lime); }
.ai-section h2 { font-size: 34px; margin: 13px 0 18px; line-height: 1.5; }
.ai-section p { color: #b6c6b4; font-size: 12px; max-width: 390px; }
.ai-features { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 27px 0; }
.ai-feature h3 { font-size: 12px; margin-bottom: 6px; color: #e1ebd9; }
.ai-feature span { color: #9eb79e; font-size: 10px; }
.ai-section .json-link { color: #c7d5ba; }
.editor { background: #102920; border: 1px solid #4b6552; border-radius: 9px; padding: 16px; transform: rotate(1.5deg); align-self: center; box-shadow: 0 22px 40px #071a2640; }
.editor-top { display: flex; justify-content: space-between; align-items: center; font-size: 10px; color: #bdcab1; margin-bottom: 12px; }
.window-dots { display: inline-flex; gap: 4px; }
.window-dots i { background: #738b6d; width: 5px; height: 5px; border-radius: 50%; }
.editor-preview { position: relative; border-radius: 4px; overflow: hidden; }
.editor-preview img { width: 100%; aspect-ratio: 16/9; object-fit: cover; opacity: .9; }
.editor-caption { position: absolute; bottom: 15px; left: 0; right: 0; text-align: center; font-size: 12px; letter-spacing: 5px; text-shadow: 0 1px 7px black; }
.editor-controls { display: flex; justify-content: space-between; align-items: center; font-size: 9px; color: #b1c5a4; padding: 11px 0; }
.editor-controls svg { width: 13px; height: 13px; }
.timeline { position: relative; display: grid; gap: 5px; padding-top: 7px; border-top: 1px solid #324a38; }
.timeline::after { content: ''; position: absolute; top: 0; bottom: 0; width: 1px; left: 43%; background: var(--lime); }
.timeline-row { height: 23px; display: flex; gap: 4px; }
.timeline-row span { background: #486740; width: 25%; border-radius: 2px; color: #cad9bc; font-size: 8px; padding: 4px 7px; white-space: nowrap; overflow: hidden; }
.timeline-row:nth-child(2) span { background: #374e45; width: 60%; }
.timeline-row:nth-child(3) span { background: #626944; width: 90%; }
.community-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; }
.community-feature { position: relative; min-height: 340px; border-radius: 10px; overflow: hidden; color: white; background: var(--green); }
.community-feature img { width: 100%; height: 100%; position: absolute; object-fit: cover; opacity: .55; }
.community-feature-content { position: relative; padding: 33px; display: flex; flex-direction: column; align-items: flex-start; min-height: 340px; }
.community-feature-content h3 { font-size: 25px; margin-top: auto; padding-top: 45px; }
.community-feature-content p { color: #e6eadc; font-size: 12px; margin: 12px 0 20px; max-width: 390px; }
.community-topics { display: flex; flex-direction: column; }
.topic-row { display: flex; align-items: flex-start; gap: 16px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.topic-row:first-child { padding-top: 4px; }
.topic-number { color: #a6b08e; font: italic 22px Georgia,serif; }
.topic-row h3 { font-size: 14px; }
.topic-row p { margin-top: 6px; font-size: 11px; color: var(--muted); }
.topic-row .text-link { font-size: 11px; margin-top: 5px; }
.feature-strip { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 26px; }
.feature-chip { background: var(--soft); padding: 23px; border-radius: 9px; }
.feature-chip h3 { display: flex; gap: 10px; align-items: center; font-size: 14px; margin-bottom: 9px; }
.feature-chip p { font-size: 11px; color: var(--muted); }
.feature-chip button { border: 0; background: none; padding: 14px 0 0; font-size: 11px; }
.tutorial-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.tutorial-card { padding: 22px; border: 1px solid var(--line); border-radius: 8px; transition: background .2s; }
.tutorial-card:hover { background: var(--soft); }
.tutorial-card .eyebrow { font-size: 10px; color: #93a17b; margin-bottom: 18px; }
.tutorial-card h3 { font-size: 14px; margin-bottom: 12px; }
.tutorial-card p { font-size: 11px; color: var(--muted); }
.tutorial-card footer { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; font-size: 10px; color: #83916e; }
.tutorial-card svg { width: 15px; }
.expert-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.expert-card { border: 1px solid var(--line); border-radius: 9px; padding: 26px; background: #fbfcf6; }
.expert-top { display: flex; align-items: center; gap: 15px; margin-bottom: 18px; }
.avatar { display: grid; place-items: center; flex-shrink: 0; width: 49px; height: 49px; border-radius: 50%; background: #e9eddd; color: #788b5c; font: italic 22px Georgia,serif; }
.expert-top h3 { font-size: 15px; }
.expert-top span { font-size: 10px; color: var(--muted); }
.expert-card p { font-size: 11px; color: var(--muted); margin-top: 8px; }
.expert-card dl { font-size: 11px; display: grid; grid-template-columns: 45px 1fr; gap: 8px; margin: 18px 0; }
.expert-card dt { color: #829071; }
.expert-card dd { margin: 0; color: #596954; }
.expert-actions { display: flex; gap: 14px; border-top: 1px solid var(--line); padding-top: 15px; }
.expert-actions button,.expert-actions a { background: none; border: none; padding: 0; font-size: 11px; }
.partner-wall { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; border: 1px solid var(--line); border-radius: 8px; }
.partner { padding: 28px 15px; text-align: center; border-right: 1px solid var(--line); }
.partner:last-child { border: 0; }
.partner strong { display: block; font-size: 22px; letter-spacing: 3px; color: #7d8d71; }
.partner span { font-size: 10px; color: var(--muted); }
.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 25px; counter-reset: guide; }
.step img { border-radius: 7px; width: 100%; aspect-ratio: 16/9; object-fit: cover; margin-bottom: 18px; }
.step h3 { font-size: 14px; margin-bottom: 9px; }
.step h3::before { counter-increment: guide; content: '0' counter(guide) ' / '; color: #96a26e; }
.step p { color: var(--muted); font-size: 11px; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.review { padding: 23px; background: var(--soft); border-radius: 8px; }
.review-top { display: flex; align-items: center; gap: 10px; }
.review .avatar { width: 34px; height: 34px; font: 13px sans-serif; background: #dce5ce; }
.review h3 { font-size: 12px; }
.review .quote { font: 38px/.7 Georgia,serif; color: #97ab78; margin-left: auto; }
.review blockquote { margin: 17px 0; font-size: 12px; line-height: 1.95; }
.review footer { font-size: 10px; color: var(--muted); }
.faq-layout { display: grid; grid-template-columns: .6fr 1.4fr; gap: 60px; }
.faq-intro p { margin: 15px 0; font-size: 12px; color: var(--muted); }
.faq-list details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; font-size: 14px; display: flex; justify-content: space-between; align-items: center; gap: 15px; }
.faq-list summary::after { content: '+'; font-size: 22px; font-weight: 300; color: #7b8d63; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list details p { font-size: 12px; color: var(--muted); padding: 15px 30px 0 0; }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
.contact-photo img { width: 100%; border-radius: 9px; }
.contact-photo figcaption { font-size: 10px; color: var(--muted); margin-top: 10px; }
.contact-photo { margin: 0; }
.contact-info h3 { font-size: 22px; margin-bottom: 13px; }
.contact-info p { font-size: 12px; color: var(--muted); }
.contact-info dl { display: grid; grid-template-columns: 68px 1fr; font-size: 12px; gap: 12px; margin: 23px 0; }
.contact-info dt { color: var(--muted); }
.contact-info dd { margin: 0; overflow-wrap: anywhere; }
.contact-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.contact-actions button { font-size: 11px; padding: 7px 12px; }
.editorial { background: #eff1e6; border: 1px solid #e1e6d2; border-radius: 8px; padding: 25px; display: flex; gap: 22px; margin-top: 30px; }
.editorial h3 { font-size: 13px; margin-bottom: 7px; }
.editorial p { font-size: 11px; color: var(--muted); }
.site-footer { background: var(--green); color: #d0ddc7; margin-top: 64px; padding: 50px 0 22px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 34px; border-bottom: 1px solid #3b5544; gap: 30px; }
.footer-top h2 { font-size: 32px; color: #eef4e4; margin-bottom: 10px; }
.footer-top p { font-size: 12px; color: #a4b69d; }
.footer-main { display: grid; grid-template-columns: 1.35fr .75fr .75fr 1fr; gap: 45px; padding: 35px 0; }
.site-footer .brand-desc { color: #a3b897; }
.site-footer .brand-name { color: #f1f7e8; }
.footer-brand p { font-size: 11px; color: #9db194; margin-top: 18px; max-width: 260px; }
.footer-col h3 { font-size: 12px; color: #e7efdd; margin-bottom: 16px; }
.footer-col a,.footer-col button { display: block; border: 0; background: none; color: #a5b99b; font-size: 11px; padding: 0; margin-bottom: 9px; text-align: left; }
.footer-col a:hover,.footer-col button:hover { color: var(--lime); }
.qr-row { display: flex; gap: 22px; }
.qr-item img { width: 78px; height: 78px; padding: 3px; border-radius: 3px; background: white; }
.qr-item span { font-size: 10px; display: block; margin-top: 8px; color: #afc4a2; }
.footer-bottom { border-top: 1px solid #3b5544; padding-top: 19px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 10px; color: #93ad88; }
.footer-note { margin-top: 14px; color: #8aa080; font-size: 10px; }
.social-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.social-row button { border: 1px solid #4b6650; border-radius: 4px; padding: 4px 9px; color: #c5d7b8; background: none; font-size: 10px; }
.breadcrumb { display: flex; gap: 10px; font-size: 11px; color: var(--muted); padding: 22px 0; }
.page-intro { padding: 36px 0 45px; border-bottom: 1px solid var(--line); }
.page-intro .eyebrow { color: #879a66; margin-bottom: 14px; }
.page-intro h1 { font-size: 43px; margin-bottom: 16px; }
.page-intro p { color: var(--muted); font-size: 14px; max-width: 720px; }
.page-intro .tags { margin-top: 22px; }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 260px; gap: 60px; padding: 38px 0 65px; }
.article-body { max-width: 810px; }
.article-body h2 { margin: 32px 0 16px; font-size: 25px; }
.article-body h3 { margin: 25px 0 12px; }
.article-body p { font-size: 14px; color: #60715e; line-height: 2; margin: 16px 0; }
.article-body li { font-size: 14px; color: #60715e; line-height: 2; margin-bottom: 10px; }
.article-body blockquote { margin: 25px 0; padding: 23px; border-left: 3px solid #aac17c; background: var(--soft); font-size: 14px; }
.article-body img { width: 100%; border-radius: 10px; }
.article-side { border-left: 1px solid var(--line); padding-left: 25px; }
.article-side h2 { font-size: 16px; margin: 0 0 20px; }
.article-side a { display: block; padding: 13px 0; font-size: 12px; border-bottom: 1px solid var(--line); }
.author-box { display: flex; flex-wrap: wrap; gap: 20px; padding: 18px 0; font-size: 11px; color: var(--muted); }
.tool-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.tool-panel { border: 1px solid var(--line); background: white; padding: 30px; border-radius: 10px; }
.tool-panel h2 { font-size: 21px; margin-bottom: 14px; }
.tool-panel p { font-size: 12px; color: var(--muted); margin-bottom: 19px; }
.field { display: block; font-size: 12px; margin-bottom: 16px; }
.field input,.field select,.field textarea { display: block; width: 100%; margin-top: 7px; border: 1px solid #d4ddca; border-radius: 6px; padding: 10px 13px; background: #f9fbf4; color: var(--green); }
.field textarea { min-height: 100px; resize: vertical; }
.output { border-radius: 6px; background: var(--soft); padding: 18px; margin-top: 19px; white-space: pre-wrap; font: 12px/1.9 monospace; overflow-wrap: anywhere; }
.output:empty { display: none; }
.rule-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 28px 0; }
.rule { padding: 25px; background: var(--soft); border-radius: 8px; }
.rule h2 { font-size: 18px; margin-bottom: 12px; }
.rule p { font-size: 12px; color: var(--muted); }
.status-notice { padding: 15px 20px; background: #eff2e5; border: 1px solid #dce4cc; border-radius: 6px; font-size: 12px; color: #677b57; margin: 24px 0; }
dialog { border: 1px solid var(--line); border-radius: 14px; padding: 0; width: min(700px,calc(100vw - 32px)); background: var(--paper); color: var(--ink); max-height: 90vh; }
dialog::backdrop { background: #09261acc; backdrop-filter: blur(6px); }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 25px; gap: 20px; border-bottom: 1px solid var(--line); }
.modal-header h2 { font-size: 18px; }
.modal-close { border: 0; background: var(--soft); border-radius: 50%; width: 32px; height: 32px; font-size: 21px; }
.modal-content { padding: 25px; max-height: 72vh; overflow-y: auto; }
.modal-content p { font-size: 13px; color: var(--muted); margin-bottom: 15px; }
.modal-content video { width: 100%; display: block; border-radius: 7px; margin-bottom: 15px; aspect-ratio: 16/9; background: var(--green); }
.modal-content pre { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--soft); padding: 18px; border-radius: 6px; font: 11px/1.75 monospace; }
.modal-content .qr-large { width: 210px; height: 210px; margin: 15px auto; }
.modal-buttons { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.toast { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%); padding: 14px 23px; background: #183a2fec; color: white; border: 1px solid #687f5b; box-shadow: 0 12px 25px #183a2f25; border-radius: 9px; font-size: 12px; z-index: 500; max-width: min(90vw,550px); width: max-content; }
.to-top { position: fixed; right: 24px; bottom: 24px; background: var(--paper); border: 1px solid var(--line); color: var(--green); width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; z-index: 10; }
@media (min-width: 1600px) { .wrap { max-width: 1360px; } .hero { min-height: 580px; } }
@media (max-width: 1100px) {
 .wrap { width: calc(100% - 48px); }
 .header-row { gap: 20px; }
 .nav { gap: 17px; }
 .nav a { font-size: 11px; }
 .header-action { display: none; }
 .hero-content { padding: 42px; }
 .hero-bottom { left: 42px; }
 .quick-item { padding: 8px 16px; gap: 9px; }
 .quick-item strong { font-size: 12px; }
 .quick-item span { font-size: 10px; }
 .ai-section { padding: 32px; gap: 28px; }
 .ai-section h2 { font-size: 28px; }
 .footer-main { gap: 25px; grid-template-columns: 1fr .8fr .8fr 1fr; }
 .qr-row { gap: 12px; }
 .qr-item img { width: 68px; height: 68px; }
 .expert-card { padding: 20px; }
}
@media (max-width: 800px) {
 .topline .wrap span:last-child { display: none; }
 .header-row { min-height: 76px; justify-content: space-between; position: relative; }
 .menu-toggle { display: block; }
 .nav { display: none; position: absolute; top: 76px; left: -24px; right: -24px; background: var(--paper); padding: 20px 24px; z-index: 100; box-shadow: 0 15px 15px #183a2f11; margin: 0; }
 .nav.open { display: grid; gap: 0; }
 .nav a { padding: 13px 0; font-size: 13px; }
 .brand img { width: 39px; height: 39px; }
 .brand-name { font-size: 24px; }
 .brand-desc { font-size: 9px; }
 .search-form { width: 100%; }
 .hot-links { display: none; }
 .hero { min-height: 470px; }
 .hero h1 { font-size: 40px; }
 .hero-content { padding: 36px; }
 .hero-bottom { left: 36px; right: 25px; }
 .hero-img { object-position: 61% center; }
 .hero::after { background: linear-gradient(90deg,#09291be8,#09291b8a 55%,#09291b22),linear-gradient(0deg,#082c2388,transparent 45%); }
 .quick-grid { grid-template-columns: 1fr 1fr; gap: 22px 0; }
 .quick-item:nth-child(3) { border: 0; padding-left: 8px; }
 .media-grid { grid-template-columns: 1fr 1fr; gap: 25px 18px; }
 .section { padding: 45px 0; }
 .section-head h2 { font-size: 25px; }
 .section-head-right { flex-direction: column; align-items: flex-end; gap: 6px; }
 .filter-note { display: none; }
 .service-grid { grid-template-columns: 1fr 1fr; }
 .ai-section { grid-template-columns: 1fr; margin-top: 45px; gap: 30px; }
 .ai-section p { max-width: 100%; }
 .editor { max-width: 540px; width: 100%; margin: 0 auto; }
 .community-grid { grid-template-columns: 1fr; gap: 27px; }
 .community-topics { display: grid; grid-template-columns: 1fr 1fr; gap: 0 25px; }
 .topic-row:first-child { padding-top: 19px; }
 .feature-strip { grid-template-columns: 1fr 1fr; }
 .tutorial-grid { grid-template-columns: 1fr 1fr; }
 .expert-grid { grid-template-columns: 1fr 1fr; }
 .steps { grid-template-columns: 1fr 1fr; gap: 28px; }
 .review-grid { grid-template-columns: 1fr 1fr; }
 .faq-layout { grid-template-columns: 1fr; gap: 20px; }
 .contact-grid { grid-template-columns: 1fr; gap: 30px; }
 .contact-photo img { max-height: 350px; object-fit: cover; }
 .footer-top h2 { font-size: 26px; }
 .footer-main { grid-template-columns: 1fr 1fr; gap: 30px; }
 .article-layout { grid-template-columns: 1fr; gap: 30px; }
 .article-side { padding: 25px 0 0; border-left: 0; border-top: 1px solid var(--line); }
 .tool-layout { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
 .wrap { width: calc(100% - 32px); }
 .topline { font-size: 10px; }
 .nav { left: -16px; right: -16px; }
 .search-row { padding: 13px 0; }
 .hero { min-height: 480px; border-radius: 9px; }
 .hero-content { padding: 31px 25px; }
 .hero h1 { font-size: 34px; line-height: 1.5; }
 .hero h1 .brand-heading { font-size: 11px; letter-spacing: 2px; }
 .hero .pill { font-size: 9px; margin-bottom: 22px; }
 .hero p { font-size: 11px; max-width: 260px; }
 .hero-img { object-position: 66% center; }
 .hero::after { background: linear-gradient(90deg,#09291bec,#09291b9c 55%,#09291b55),linear-gradient(0deg,#082c23aa,transparent 60%); }
 .hero-actions { gap: 13px; }
 .hero-actions .button { font-size: 11px; padding: 9px 13px; }
 .hero-actions .text-link { font-size: 11px; }
 .hero-bottom { left: 25px; right: 22px; bottom: 19px; font-size: 8px; }
 .hero-side { right: 13px; font-size: 8px; }
 .hero-pager { gap: 3px; }
 .hero-pager .pager-line { width: 25px; }
 .hero-bottom>span { max-width: 180px; }
 .quick-item { padding-left: 15px; }
 .quick-item strong { font-size: 11px; }
 .quick-icon { width: 34px; height: 34px; }
 .quick-item span { font-size: 9px; }
 .section-head { gap: 12px; margin-bottom: 22px; }
 .section-head h2 { font-size: 22px; }
 .section-head p { font-size: 11px; }
 .section-head-right .text-link { font-size: 10px; gap: 4px; }
 .section-head .eyebrow { font-size: 9px; }
 .section-head-right .json-link { font-size: 9px; }
 .filterbar { margin: 19px 0; gap: 3px; }
 .filterbar button { padding: 6px 13px; font-size: 11px; }
 .media-grid { gap: 24px 12px; }
 .media-cover { aspect-ratio: 4/3; border-radius: 6px; }
 .card-badge { font-size: 8px; top: 8px; left: 8px; padding: 2px 5px; }
 .cover-bottom { bottom: 7px; left: 8px; right: 8px; font-size: 8px; }
 .card-info { padding-top: 11px; }
 .card-info h3 { font-size: 13px; }
 .card-info p { font-size: 10px; }
 .card-meta { font-size: 8px; flex-wrap: wrap; gap: 7px; }
 .card-meta .meta-actions { gap: 10px; }
 .like-button { font-size: 8px; }
 .tags { gap: 4px; }
 .tags span { font-size: 8px; padding: 1px 4px; }
 .play-circle { opacity: 1; width: 34px; height: 34px; }
 .play-circle svg { width: 16px; }
 .service-card { padding: 21px 17px; }
 .service-card h3 { font-size: 14px; }
 .service-card p { font-size: 11px; }
 .ai-section { padding: 27px 22px; border-radius: 9px; }
 .ai-section h2 { font-size: 27px; }
 .ai-features { gap: 16px 12px; }
 .editor { transform: none; padding: 11px; }
 .editor-caption { font-size: 10px; }
 .community-feature-content { padding: 25px; }
 .community-feature-content h3 { font-size: 23px; }
 .community-topics { grid-template-columns: 1fr; gap: 0; }
 .feature-strip { grid-template-columns: 1fr; gap: 12px; }
 .feature-chip { padding: 21px; }
 .tutorial-card { padding: 18px; }
 .tutorial-card h3 { font-size: 13px; }
 .expert-grid { grid-template-columns: 1fr; gap: 14px; }
 .expert-card { padding: 23px; }
 .partner-wall { grid-template-columns: 1fr 1fr; }
 .partner { padding: 20px 12px; border-bottom: 1px solid var(--line); }
 .partner:nth-child(2) { border-right: 0; }
 .partner:nth-child(3) { border-bottom: 0; }
 .partner strong { font-size: 18px; }
 .steps { gap: 26px 15px; }
 .step h3 { font-size: 12px; }
 .review-grid { grid-template-columns: 1fr; gap: 13px; }
 .faq-list summary { font-size: 12px; }
 .editorial { padding: 20px; gap: 13px; }
 .footer-top { flex-direction: column; align-items: flex-start; }
 .footer-top h2 { font-size: 24px; }
 .footer-main { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
 .footer-brand { grid-column: 1/-1; }
 .qr-col { grid-column: 1/-1; }
 .qr-row { gap: 28px; }
 .qr-item img { width: 83px; height: 83px; }
 .footer-bottom { flex-direction: column; }
 .site-footer { margin-top: 45px; }
 .page-intro { padding: 22px 0 30px; }
 .page-intro h1 { font-size: 30px; }
 .page-intro p { font-size: 12px; }
 .article-layout { padding-top: 25px; }
 .article-body h2 { font-size: 21px; }
 .article-body p { font-size: 13px; }
 .rule-grid { grid-template-columns: 1fr; }
 .tool-panel { padding: 23px; }
 .modal-header { padding: 17px; }
 .modal-header h2 { font-size: 15px; }
 .modal-content { padding: 19px; }
 .to-top { right: 12px; bottom: 12px; width: 32px; height: 32px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *,*::before,*::after { transition: none !important; animation: none !important; }
}

/* 勾选确认保持原生可访问控件尺寸，不继承文本输入框宽度。 */
.field input[type="checkbox"] {
  display: inline-block;
  width: auto;
  margin: 0 8px 0 0;
  vertical-align: middle;
  accent-color: var(--green);
}