/*
 * [INPUT]: styles.css 基础样式与乘风品牌绿 #1eaa61。
 * [OUTPUT]: 官网绿色主题、首页交互布局与账户页面样式。
 * [POS]: .landing 与 .account-page 共用色值；运营后台沿用基础样式。
 * [PROTOCOL]: 变更时更新此头部，然后检查 CLAUDE.md
 */
@import url('./theme.css');
.landing .site-width { width: min(1184px, calc(100% - 64px)); margin-inline: auto; }
.landing .site-icons { position: absolute; width: 0; height: 0; overflow: hidden; }
.landing .icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.landing .skip-link { position: absolute; top: -60px; left: 16px; padding: 10px 18px; background: var(--surface); z-index: 10; }
.landing .skip-link:focus { top: 10px; }
.landing a { text-decoration: none; }
.landing .button { min-height: 48px; border-radius: 9px; padding: 12px 22px; gap: 12px; font-size: 14px; font-weight: 600; }
.landing .button.primary { background: var(--button-primary); color: var(--on-primary); border-color: var(--button-primary); }
.landing .button.primary:hover { filter: brightness(.95); }
.landing .button:not(.primary):hover { border-color: var(--input); background: var(--secondary); }
.landing a:focus-visible, .landing select:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; }
.landing .brand { gap: 10px; color: var(--fg); font-size: 18px; font-weight: 650; letter-spacing: -.035em; }
.landing .brand img { display: block; border-radius: 9px; flex-shrink: 0; }
.landing .site-header { min-height: 88px; padding-block: 20px; margin-bottom: 0; border: 0; gap: 24px; flex-wrap: nowrap; }
.landing .landing-nav { display: flex; align-items: center; gap: 36px; }
.landing .landing-nav a { font-size: 13px; color: var(--muted); }
.landing .landing-nav a:hover { color: var(--green-ink); }
.landing .account-link { min-height: 40px; padding: 9px 15px; font-size: 13px; }
.landing .account-link .icon { width: 16px; height: 16px; }
/* ---------- 双向翻译 Hero ---------- */
.landing .landing-hero { display: grid; grid-template-columns: minmax(0, .94fr) minmax(0, 1.06fr); align-items: start; gap: 76px; padding-block: 40px 56px; }
.landing .hero-copy { padding-top: 48px; }
.landing .hero-context { display: flex; align-items: center; gap: 9px; color: var(--green-ink); font-size: 13px; margin-bottom: 25px; }
.landing .status-dot { width: 7px; height: 7px; background: var(--primary); border-radius: 50%; }
.landing h1 { font-size: clamp(42px, 4.4vw, 60px); line-height: 1.26; font-weight: 650; letter-spacing: -.06em; text-align: left; }
.landing .hero-description { margin-top: 26px; font-size: 16px; line-height: 1.95; color: var(--muted); max-width: 30em; }
.landing .hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.landing .secondary-action { color: var(--fg); background: var(--surface); }
.landing .how-to-menu { position: relative; }
.landing .how-to-menu summary { cursor: pointer; list-style: none; }
.landing .how-to-menu summary::-webkit-details-marker { display: none; }
.landing .how-to-menu[open] summary > .icon { transform: rotate(180deg); }
.landing .how-to-options { position: absolute; top: calc(100% + 8px); right: 0; z-index: 5; display: grid; gap: 3px; min-width: 224px; padding: 6px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); }
.landing .how-option { display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 10px 12px; border-radius: 6px; color: var(--fg); font-size: 13px; line-height: 1.4; text-align: left; }
.landing a.how-option:hover, .landing a.how-option:focus-visible { background: var(--soft); color: var(--green-ink); }
.landing .how-option > .icon { width: 17px; height: 17px; color: var(--muted); }
.landing .how-option.unavailable { color: var(--muted); }
.landing .how-option small { margin-left: auto; padding: 2px 5px; border: 1px solid var(--border); border-radius: 4px; color: var(--muted); font-size: 10px; white-space: nowrap; }
.landing .hero-platforms { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 23px; color: var(--muted); font-size: 12px; }
.landing .hero-platforms > span { display: flex; align-items: center; gap: 7px; }
.landing .platform-icon { display: block; width: 18px; height: 18px; object-fit: contain; flex-shrink: 0; }
.landing img[src="/shortcuts-icon.png"] { border-radius: 24%; }
.landing .hero-platforms .icon { width: 16px; height: 16px; }
.landing .hero-demo { min-width: 0; background: var(--stage); border-radius: 22px; padding: 21px; }
.landing .demo-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; padding-inline: 2px; font-size: 12px; color: var(--muted); }
.landing .demo-badge { font-size: 10px; line-height: 1.4; padding: 4px 7px; border: 1px solid var(--input); border-radius: 5px; white-space: nowrap; }
.landing .demo-modes { display: flex; align-items: center; gap: 5px; margin: 0 0 13px; }
.landing .demo-modes button { display: flex; align-items: center; gap: 6px; background: transparent; padding: 8px 12px; min-height: 44px; border: 1px solid transparent; border-radius: 7px; font-size: 11px; color: var(--muted); }
.landing .demo-modes button[aria-pressed="true"] { color: var(--green-ink); background: var(--bubble); border-color: var(--border); }
.landing .demo-modes button .icon { width: 15px; height: 15px; }
.landing .demo-voice .sample-audio { padding: 8px 0; margin: 0; background: transparent; }
.landing .demo-voice .sample-audio > .icon { width: 20px; height: 20px; color: var(--green-ink); }
.landing .demo-voice button { display: flex; align-items: center; gap: 7px; margin-top: 8px; min-height: 44px; padding: 8px 12px; font-size: 11px; color: var(--green-ink); border-color: var(--input); background: var(--soft); }
.landing .demo-voice button:hover { background: var(--outgoing); }
.landing .demo-voice button .icon { width: 15px; height: 15px; }
.landing .demo-voice + .message-source { margin-top: 8px; }
.landing .demo-conversation { min-width: 0; }
.landing .demo-messages { display: flex; flex-direction: column; gap: 17px; }
.landing .demo-bubble { position: relative; border-radius: 3px 11px 11px; padding: 13px 15px 23px; background: var(--bubble); min-width: 0; }
.landing .demo-bubble.incoming { margin-right: 24px; border: 1px solid var(--border); }
.landing .demo-bubble.outgoing { margin-left: 24px; background: var(--outgoing); border-radius: 11px 3px 11px 11px; }
.landing .bubble-label { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px 10px; color: var(--muted); font-size: 10px; margin-bottom: 6px; }
.landing .bubble-language { font-size: 10px; }
.landing .message-source { font-size: 12px; line-height: 1.75; color: var(--muted); overflow-wrap: anywhere; }
.landing .bubble-translation { margin-top: 10px; border-top: 1px solid var(--border); padding-top: 9px; }
.landing .translation-label { display: flex; align-items: center; gap: 5px; color: var(--green-ink); font-size: 10px; margin-bottom: 4px; }
.landing .translation-label img { border-radius: 4px; }
.landing .bubble-translation > p { font-size: 13px; line-height: 1.75; color: var(--fg); overflow-wrap: anywhere; font-weight: 500; }
.landing [dir="rtl"] { text-align: right; }
.landing .message-time { display: flex; align-items: center; gap: 3px; position: absolute; right: 12px; bottom: 4px; font-size: 9px; color: var(--muted); line-height: 1.5; }
.landing .message-time .icon { width: 13px; height: 13px; color: var(--green-ink); }
.landing .demo-language-controls { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; margin-top: 16px; }
.landing .demo-language-controls label { font-size: 11px; color: var(--muted); font-weight: 400; gap: 7px; }
.landing .demo-language-controls select { min-height: 43px; padding: 10px 12px; background: var(--bubble); border-color: var(--border); border-radius: 7px; color: var(--fg); font-size: 12px; }
.landing .demo-note { color: var(--muted); font-size: 10px; margin-top: 11px; text-align: center; }
/* ---------- 功能与产品示意 ---------- */
.landing .benefit-strip { background: var(--bg); border-block: 1px solid var(--border); }
.landing .benefit-strip > div { display: flex; justify-content: center; gap: 32px 76px; flex-wrap: wrap; padding-block: 19px; }
.landing .benefit-strip span { display: flex; align-items: center; gap: 9px; font-size: 12px; color: var(--muted); }
.landing .benefit-strip .icon { width: 17px; height: 17px; color: var(--green-ink); }
.landing .product-section { padding-block: 80px; scroll-margin-top: 24px; }
.landing .section-intro { display: grid; grid-template-columns: 1fr .8fr; gap: 80px; align-items: end; margin-bottom: 48px; }
.landing .section-label { color: var(--green-ink); font-size: 12px; margin-bottom: 13px; }
.landing h2 { font-size: clamp(28px, 3vw, 37px); line-height: 1.4; letter-spacing: -.045em; font-weight: 620; }
.landing .section-intro > p { font-size: 14px; color: var(--muted); line-height: 1.9; max-width: 33em; padding-bottom: 4px; }
.landing .desktop-feature { display: grid; grid-template-columns: .87fr 1.13fr; gap: 80px; align-items: center; }
.landing .feature-copy h3 { font-size: 25px; font-weight: 580; line-height: 1.5; letter-spacing: -.035em; }
.landing .feature-copy > p { font-size: 13px; line-height: 1.9; color: var(--muted); margin-top: 15px; max-width: 29em; }
.landing .feature-list { display: grid; gap: 18px; list-style: none; padding: 0; margin: 26px 0; }
.landing .feature-list li { display: flex; align-items: flex-start; gap: 11px; }
.landing .feature-list .icon { width: 16px; height: 16px; margin-top: 3px; color: var(--green-ink); }
.landing .feature-list strong { font-size: 13px; font-weight: 550; display: block; }
.landing .feature-list span { font-size: 12px; line-height: 1.8; color: var(--muted); display: block; margin-top: 2px; }
.landing .text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--green-ink); font-size: 13px; font-weight: 500; }
.landing .text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.landing .text-link .icon { width: 16px; height: 16px; }
.landing .voice-demo { border: 1px solid var(--border); border-radius: 14px; background: var(--surface); overflow: hidden; box-shadow: var(--shadow); }
.landing .mini-window-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 17px; border-bottom: 1px solid var(--border); font-size: 11px; color: var(--muted); }
.landing .mini-window-bar > .icon { width: 18px; height: 18px; }
.landing .window-dots { display: flex; gap: 5px; }
.landing .window-dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--input); }
.landing .voice-demo-content { padding: 44px 32px 22px; background: var(--chat); }
.landing .sample-audio { display: flex; align-items: center; gap: 13px; padding: 16px; margin: 0 30px 12px 0; border-radius: 0 12px 12px; background: var(--bubble); color: var(--muted); font-size: 10px; }
.landing .play-symbol { color: var(--green-ink); display: grid; place-items: center; }
.landing .play-symbol .icon { fill: currentColor; stroke-width: 0; width: 24px; height: 24px; }
.landing .audio-wave { display: flex; align-items: center; gap: 4px; height: 27px; flex: 1; overflow: hidden; }
.landing .audio-wave i { width: 3px; height: 9px; flex-shrink: 0; border-radius: 4px; background: var(--input); }
.landing .audio-wave i:nth-child(3n) { height: 22px; background: var(--primary); }
.landing .audio-wave i:nth-child(4n) { height: 16px; }
.landing .audio-wave i:nth-child(7n) { height: 27px; }
.landing .sample-result { border: 1px solid var(--border); border-radius: 9px; background: var(--bubble); margin-right: 12px; overflow: hidden; }
.landing .sample-result-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 11px; }
.landing .sample-result-header > span:first-child { display: flex; align-items: center; gap: 7px; }
.landing .sample-result-header img { border-radius: 5px; }
.landing .sample-result-header > span:last-child { color: var(--muted); }
.landing .sample-result > p { padding: 12px 13px 0; font-size: 13px; line-height: 1.85; }
.landing .sample-result > p:nth-last-child(2) { padding-bottom: 13px; }
.landing .sample-result > p > span { font-size: 10px; color: var(--muted); margin-right: 10px; }
.landing .sample-result-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 7px; border-top: 1px solid var(--border); padding: 8px 12px; font-size: 10px; color: var(--muted); }
.landing .sample-caption { display: block; text-align: center; margin-top: 16px; font-size: 10px; color: var(--muted); }
.landing .composer-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 52px; padding: 30px 32px; background: var(--bg); border-radius: 12px; align-items: center; }
.landing .composer-copy { display: flex; gap: 15px; align-items: flex-start; }
.landing .composer-copy > .icon { width: 24px; height: 24px; color: var(--green-ink); margin-top: 2px; }
.landing .composer-copy h3 { font-size: 17px; font-weight: 580; }
.landing .composer-copy p { font-size: 12px; color: var(--muted); line-height: 1.9; margin-top: 9px; }
.landing .composer-example { background: var(--surface); padding: 15px 18px; border: 1px solid var(--border); border-radius: 8px; }
.landing .composer-example p { font-size: 12px; line-height: 1.8; }
.landing .composer-example > div { display: flex; align-items: center; gap: 5px; margin-block: 10px; }
.landing .composer-example kbd { font: inherit; font-size: 9px; line-height: 1.5; padding: 3px 9px; border: 1px solid var(--input); border-bottom-width: 2px; border-radius: 4px; background: var(--secondary); color: var(--muted); }
.landing .composer-example .icon { width: 14px; height: 14px; color: var(--green-ink); margin-left: 5px; }
/* ---------- iPhone 与使用步骤 ---------- */
.landing .mobile-section { background: var(--bg); padding-block: 70px; }
.landing .mobile-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.landing .mobile-visual { padding: 28px 38px; }
.landing .android-section { background: var(--surface); }
.landing .android-visual { display: flex; justify-content: center; align-items: center; }
.landing .phone-frame { width: min(250px, 72%); padding: 7px; border-radius: 38px; background: #16251d; box-shadow: 0 22px 54px rgba(12, 48, 30, .2); transform: rotate(1.2deg); }
.landing .phone-frame img { display: block; width: 100%; height: auto; border-radius: 31px; }
.landing .shortcut-sheet { background: var(--bubble); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; transform: rotate(-2deg); }
.landing .shortcut-sheet-header { display: flex; align-items: center; gap: 10px; padding: 19px 20px; border-bottom: 1px solid var(--border); }
.landing .shortcut-symbol { width: 37px; height: 37px; display: grid; place-items: center; background: var(--soft); border-radius: 10px; color: var(--green-ink); }
.landing .shortcut-sheet-header > div { display: grid; line-height: 1.6; }
.landing .shortcut-sheet-header strong { font-size: 13px; }
.landing .shortcut-sheet-header div span { font-size: 10px; color: var(--muted); }
.landing .sheet-status { font-size: 11px; margin-left: auto; color: var(--muted); }
.landing .shortcut-result { padding: 20px 24px 27px; }
.landing .shortcut-result-label { font-size: 10px; color: var(--muted); display: block; margin-bottom: 6px; }
.landing .shortcut-result p { font-size: 14px; line-height: 1.85; }
.landing .shortcut-result p + .shortcut-result-label { margin-top: 19px; }
.landing .shortcut-done { font-size: 13px; color: var(--green-ink); text-align: center; padding: 12px; border-top: 1px solid var(--border); }
.landing .share-route { position: relative; display: flex; justify-content: center; align-items: center; gap: 10px; background: var(--bubble); border: 1px solid var(--border); border-radius: 11px; padding: 15px 12px; width: 90%; margin: 22px auto 0; color: var(--fg); font-size: 12px; }
.landing .share-route > .icon:first-child { color: var(--green-ink); }
.landing .share-route > .icon:nth-of-type(2) { color: var(--muted); width: 16px; height: 16px; margin-inline: 4px; }
.landing .share-route img { border-radius: 7px; }
.landing .mobile-copy > p:not(.section-label):not(.availability) { font-size: 14px; line-height: 1.95; color: var(--muted); max-width: 30em; margin-top: 20px; }
.landing .mobile-benefits { display: flex; flex-wrap: wrap; gap: 9px 18px; list-style: none; padding: 0; margin: 22px 0 28px; font-size: 12px; color: var(--green-ink); }
.landing .mobile-benefits li::before { content: ""; display: inline-block; vertical-align: middle; width: 4px; height: 4px; margin-right: 7px; border-radius: 50%; background: currentColor; }
.landing .availability { display: block; color: var(--muted); font-size: 11px; line-height: 1.9; margin-top: 14px; }
.landing .setup-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 44px; list-style: none; padding: 0; margin: 0; }
.landing .setup-steps li { border-top: 1px solid var(--input); padding-top: 21px; }
.landing .step-number { display: block; font-size: 12px; color: var(--green-ink); margin-bottom: 16px; }
.landing .setup-steps h3 { font-size: 16px; font-weight: 580; }
.landing .setup-steps p { font-size: 13px; color: var(--muted); line-height: 1.9; margin-top: 9px; max-width: 26em; }
.landing .privacy-section { padding-block: 44px 56px; border-top: 1px solid var(--border); scroll-margin-top: 24px; }
.landing .privacy-heading { display: flex; align-items: center; gap: 13px; }
.landing .privacy-heading > .icon { color: var(--green-ink); width: 23px; height: 23px; }
.landing .privacy-heading h2 { font-size: 25px; font-weight: 580; }
.landing .privacy-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 44px; margin-block: 28px 24px; }
.landing .privacy-points h3 { font-size: 13px; font-weight: 550; }
.landing .privacy-points p { color: var(--muted); font-size: 12px; line-height: 1.9; margin-top: 8px; max-width: 28em; }
.landing .start-strip { padding: 32px 38px; border: 1px solid var(--border); border-radius: 14px; background: var(--soft); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.landing .start-strip h2 { font-size: 26px; font-weight: 580; letter-spacing: -.035em; }
.landing .start-strip p { color: var(--muted); font-size: 13px; margin-top: 6px; }
.landing .footer { padding-block: 36px 30px; border: 0; align-items: center; gap: 24px; }
.landing .footer .brand { font-size: 14px; }
.landing .footer .brand img { border-radius: 7px; }
.landing .footer p { font-size: 10px; margin-top: 11px; color: var(--muted); }
.landing .footer-links { display: flex; flex-wrap: wrap; gap: 22px; font-size: 12px; }
.landing .footer-links a { color: var(--muted); }
.landing .footer-links a:hover { color: var(--green-ink); }
.landing .provider-highlight { display: block; margin-top: 9px; color: var(--green-ink); font-weight: 650; }
.landing .footer .footer-copyright, .account-page .footer .footer-copyright { flex-basis: 100%; margin: 0; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: 11px; }
/* ---------- 账户与登录 ---------- */
.account-page { background: var(--bg); font-size: 14px; line-height: 1.7; }
.account-page .shell { max-width: 1184px; padding-block: 26px 40px; }
.account-page .site-header { align-items: center; padding-bottom: 22px; margin-bottom: 28px; }
.account-page .brand { color: var(--fg); font-size: 17px; letter-spacing: -.03em; }
.account-page .brand img { display: block; border-radius: 9px; flex-shrink: 0; }
.account-page a { color: var(--green-ink); }
.account-page .primary { background: var(--button-primary); border-color: var(--button-primary); color: var(--on-primary); }
.account-page .primary:hover { filter: brightness(.95); }
.account-page .page-heading { margin-bottom: 24px; align-items: center; }
.account-page .page-heading h1 { font-size: 27px; line-height: 1.4; }
.account-page .page-heading p { font-size: 13px; }
.account-page .content { gap: 24px; }
.account-page .panel { border-radius: 12px; padding: 24px; }
.account-page .panel-heading { margin-bottom: 20px; }
.account-page .panel-heading h2 { font-size: 18px; }
.account-page .dashboard-nav { gap: 4px; padding: 6px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
.account-page .dashboard-nav a { padding: 8px 14px; border-radius: 6px; color: var(--muted); }
.account-page .dashboard-nav a:hover, .account-page .dashboard-nav a:focus-visible { background: var(--soft); color: var(--green-ink); text-decoration: none; }
.account-page .balance-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; padding: 0 0 20px; margin-bottom: 17px; }
.account-page .balance-item { min-width: 0; padding: 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); gap: 7px; }
.account-page .balance-item:first-child { background: var(--soft); }
.account-page .balance-item strong { font-size: 23px; line-height: 1.4; overflow-wrap: anywhere; }
.account-page .balance-item:first-child strong { color: var(--green-ink); }
.account-page #account-state { padding: 4px 9px; color: var(--green-ink); background: var(--soft); }
.account-page #signed-out { max-width: 620px; margin: 36px auto; padding: 32px; }
.account-page input:focus, .account-page select:focus { border-color: var(--primary); }
.account-page .shortcut-controls { padding-left: 24px; }
.account-page .shortcut-controls .actions { gap: 8px; }
.account-page .shortcut-controls .button, .account-page .shortcut-controls button { min-height: 38px; }
.account-page .table-wrap { border-radius: 9px; }
.account-page th { background: var(--bg); }
.account-page td, .account-page th { padding-block: 13px; }
.account-page .footer { gap: 14px 24px; }
.account-page .footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.account-page .footer-links a { color: var(--muted); }
.dashboard-nav { display: flex; flex-wrap: wrap; gap: 16px; font-size: 12px; }
.shortcut-controls .button { border-radius: 6px; }
#shortcut { scroll-margin-top: 20px; }
.shortcut-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.shortcut-steps { margin: 0; padding-left: 20px; font-size: 13px; }
.shortcut-steps li { padding: 0 0 16px 5px; }
.shortcut-steps li:last-child { padding-bottom: 0; }
.shortcut-steps p { margin-top: 4px; font-size: 12px; color: var(--muted); }
.shortcut-controls { min-width: 0; padding-left: 28px; border-left: 1px solid var(--border); }
.shortcut-controls .actions { margin-top: 14px; }
.shortcut-meta { margin: 12px 0; display: grid; gap: 6px; font-size: 12px; color: var(--muted); }
.shortcut-meta div { display: flex; flex-wrap: wrap; gap: 6px 12px; }
.shortcut-meta dd { margin: 0; overflow-wrap: anywhere; }
.pair-result { margin-top: 18px; padding: 16px; background: var(--secondary); border: 1px solid var(--border); border-radius: 8px; }
.pair-result h3 { margin-bottom: 6px; }
.pair-result p { font-size: 12px; color: var(--muted); }
.shortcut-dialog { max-width: 440px; width: calc(100% - 32px); padding: 24px; border: 1px solid var(--border); border-radius: 12px; color: var(--fg); background: var(--surface); }
.shortcut-dialog::backdrop { background: rgb(0 0 0 / .4); }
.shortcut-dialog p { margin-top: 12px; font-size: 13px; color: var(--muted); }
.shortcut-dialog .actions { margin-top: 22px; justify-content: flex-end; }
.login-next { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); }
/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .landing .landing-hero { gap: 40px; padding-top: 36px; }
  .landing .desktop-feature { gap: 45px; }
  .landing .mobile-layout { gap: 48px; }
  .landing .mobile-visual { padding-inline: 16px; }
  .landing .section-intro { gap: 50px; }
  .landing .composer-feature { gap: 30px; }
}
@media (max-width: 1000px) {
  .landing .site-header { flex-wrap: wrap; justify-content: space-between; row-gap: 14px; }
  .landing .brand { white-space: nowrap; }
  .landing .landing-nav { order: 3; width: 100%; justify-content: center; flex-wrap: wrap; gap: 10px 22px; }
}
@media (max-width: 900px) {
  .landing .site-width { width: min(700px, calc(100% - 48px)); }
  .landing .landing-nav { gap: 20px; }
  .landing .landing-hero { grid-template-columns: minmax(0, 1fr); gap: 40px; padding-block: 40px 50px; }
  .landing .hero-copy { text-align: center; padding: 0; }
  .landing h1 { text-align: center; font-size: 50px; }
  .landing .hero-context, .landing .hero-actions, .landing .hero-platforms { justify-content: center; }
  .landing .hero-description { margin-inline: auto; }
  .landing .desktop-break { display: none; }
  .landing .hero-demo { width: 100%; max-width: 540px; margin-inline: auto; }
  .landing .benefit-strip > div { gap: 16px 26px; }
  .landing .product-section { padding-block: 56px; }
  .landing .section-intro { grid-template-columns: 1fr; gap: 16px; margin-bottom: 32px; }
  .landing .section-intro > p { max-width: 40em; }
  .landing .desktop-feature { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .landing .feature-copy h3 br { display: none; }
  .landing .feature-copy > p { max-width: 40em; }
  .landing .feature-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
  .landing .feature-list li { gap: 8px; }
  .landing .voice-demo { width: 100%; max-width: 540px; margin-inline: auto; }
  .landing .composer-feature { grid-template-columns: 1fr; gap: 22px; }
  .landing .mobile-layout { gap: 30px; }
  .landing .mobile-visual { padding-inline: 0; }
  .landing .shortcut-sheet-header { padding: 15px; }
  .landing .shortcut-result { padding: 16px; }
  .landing .mobile-copy h2 { font-size: 28px; }
  .landing .setup-steps, .landing .privacy-points { gap: 24px; }
  .landing .start-strip { padding: 27px; }
  .landing .start-strip h2 { font-size: 23px; }
}
@media (max-width: 600px) {
  .landing .site-width { width: calc(100% - 32px); }
  .landing .site-header { min-height: 76px; padding-block: 17px; gap: 16px; }
  .landing .brand { font-size: 16px; }
  .landing .brand > img { width: 30px; height: 30px; }
  .landing .landing-nav { display: none; }
  .landing .account-link { font-size: 12px; min-height: 38px; padding: 8px 11px; gap: 5px; }
  .landing .landing-hero { padding-top: 25px; gap: 32px; }
  .landing .hero-context { font-size: 11px; margin-bottom: 19px; }
  .landing h1 { font-size: clamp(37px, 10.5vw, 48px); }
  .landing .hero-description { font-size: 14px; line-height: 1.9; margin-top: 19px; max-width: 23em; }
  .landing .hero-actions { position: relative; margin-top: 24px; gap: 10px; }
  .landing .hero-actions .button { padding-inline: 17px; font-size: 13px; }
  .landing .how-to-menu { position: static; }
  .landing .how-to-options { left: 0; right: 0; min-width: 0; }
  .landing .hero-platforms { gap: 10px 19px; font-size: 10px; margin-top: 19px; }
  .landing .hero-demo { padding: 13px; border-radius: 17px; }
  .landing .demo-heading { margin-bottom: 12px; font-size: 11px; }
  .landing .demo-badge { font-size: 9px; }
  .landing .demo-messages { gap: 13px; }
  .landing .demo-bubble { padding-inline: 12px; }
  .landing .demo-bubble.incoming { margin-right: 13px; }
  .landing .demo-bubble.outgoing { margin-left: 13px; }
  .landing .bubble-label { font-size: 9px; }
  .landing .bubble-language { font-size: 9px; }
  .landing .message-source { font-size: 11px; }
  .landing .bubble-translation > p { font-size: 12px; }
  .landing .demo-language-controls { gap: 10px; margin-top: 13px; }
  .landing .demo-language-controls label { font-size: 10px; }
  .landing .demo-language-controls select { font-size: 12px; min-height: 44px; padding-inline: 9px; }
  .landing .demo-note { font-size: 9px; }
  .landing .benefit-strip > div { justify-content: flex-start; padding-block: 15px; gap: 9px 19px; }
  .landing .benefit-strip span { font-size: 10px; gap: 5px; }
  .landing .benefit-strip .icon { width: 14px; height: 14px; }
  .landing .product-section { padding-block: 44px; }
  .landing h2 { font-size: 29px; }
  .landing .section-label { font-size: 11px; margin-bottom: 10px; }
  .landing .section-intro > p { font-size: 13px; }
  .landing .feature-copy h3 { font-size: 22px; }
  .landing .feature-list { grid-template-columns: 1fr; gap: 17px; }
  .landing .feature-list li { gap: 10px; }
  .landing .voice-demo-content { padding: 28px 16px 18px; }
  .landing .sample-audio { margin-right: 13px; gap: 9px; }
  .landing .sample-result { margin-right: 0; }
  .landing .sample-result > p { font-size: 12px; }
  .landing .composer-feature { margin-top: 32px; padding: 21px 18px; gap: 19px; }
  .landing .composer-copy { gap: 10px; }
  .landing .composer-copy h3 { font-size: 16px; }
  .landing .mobile-section { padding-block: 44px; }
  .landing .mobile-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .landing .mobile-copy { grid-row: 1; }
  .landing .mobile-copy h2 { font-size: 29px; }
  .landing .mobile-copy > p:not(.section-label):not(.availability) { font-size: 13px; max-width: 30em; }
  .landing .mobile-visual { padding: 16px 22px 0; max-width: 400px; margin-inline: auto; width: 100%; }
  .landing .mobile-benefits { margin-bottom: 23px; gap: 7px 14px; font-size: 11px; }
  .landing .share-route { gap: 8px; font-size: 11px; }
  .landing .setup-steps { grid-template-columns: 1fr; gap: 26px; }
  .landing .setup-steps li { display: grid; grid-template-columns: 26px 1fr; column-gap: 13px; padding-top: 17px; }
  .landing .step-number { grid-row: 1 / 4; margin: 0; padding-top: 2px; }
  .landing .setup-steps p { max-width: none; }
  .landing .setup-steps .availability { grid-column: 2; }
  .landing .privacy-section { padding-block: 35px 38px; }
  .landing .privacy-heading { gap: 9px; align-items: flex-start; }
  .landing .privacy-heading > .icon { width: 19px; height: 19px; margin-top: 4px; }
  .landing .privacy-heading h2 { font-size: 22px; }
  .landing .privacy-points { grid-template-columns: 1fr; gap: 21px; margin-block: 24px; }
  .landing .privacy-points p { max-width: none; }
  .landing .start-strip { padding: 23px; flex-wrap: wrap; gap: 20px; }
  .landing .start-strip h2 { font-size: 23px; max-width: 11em; line-height: 1.6; }
  .landing .start-strip p { font-size: 12px; }
  .landing .footer { align-items: flex-start; padding-block: 28px; gap: 23px; }
  .landing .footer p { font-size: 9px; }
  .landing .footer-links { gap: 22px; font-size: 11px; }
}
@media (max-width: 680px) {
  .account-page .shell { padding-block: 18px 30px; }
  .account-page .header-links { gap: 12px; font-size: 12px; }
  .account-page .page-heading { align-items: flex-start; }
  .account-page .page-heading h1 { font-size: 24px; }
  .account-page .panel { padding: 18px; }
  .account-page .balance-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .account-page .balance-item { padding: 13px; }
  .account-page .balance-item strong { font-size: 20px; }
  .account-page .shortcut-controls { padding: 22px 0 0; }
  .account-page #signed-out { padding: 22px; margin-block: 24px; }
  .shortcut-layout { grid-template-columns: minmax(0, 1fr); }
  .shortcut-controls { border-left: 0; border-top: 1px solid var(--border); padding: 22px 0 0; }
}
@media (prefers-reduced-motion: reduce) {
  .landing *, .landing *::before, .landing *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}

/* 语言切换：右上角图标，静态链接保证可抓取与无脚本可用 */
.landing .header-actions { display: flex; align-items: center; gap: 10px; }
.landing .lang-switch { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; flex: 0 0 auto; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); color: var(--muted); }
.landing .lang-switch:hover { color: var(--green-ink); text-decoration: none; }
.landing .lang-switch .icon { width: 18px; height: 18px; }
@media (max-width: 720px) {
  .landing .header-actions { gap: 8px; }
  .landing .lang-switch { width: 38px; height: 38px; }
}