/* 悦德家政官网 · 深色科技风，与宣传片同一套视觉；移动端优先（大部分访客来自微信） */
[hidden] { display: none !important; }
:root {
  --bg: #060b16; --bg2: #0a1222; --panel: #0e1729; --line: #1c2a44; --line2: #2a3b5c;
  --fg: #e9eff9; --fg2: #b7c4da; --muted: #8798b6;
  --accent: #38bdf8; --accent2: #818cf8; --ok: #34d399;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", system-ui, sans-serif;
  --num: "DIN Alternate", "Bahnschrift", "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --r: 14px; --gut: max(16px, env(safe-area-inset-left, 0px));
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.7 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0; line-height: 1.25; text-wrap: balance; }
p { margin: 0; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: 1160px; margin: 0 auto; padding-left: var(--gut); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #001018; padding: 6px 12px; border-radius: 8px; z-index: 99; }
.skip:focus { left: 12px; }
.sel { user-select: all; }

/* ── 按钮 ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 22px; border-radius: 12px; white-space: nowrap;
  background: linear-gradient(180deg, #4cc6fb, #1fa6e6); color: #02121d; font-weight: 700; font-size: 15px; border: 0;
  box-shadow: 0 8px 24px -10px #38bdf8aa, inset 0 1px 0 #ffffff55; transition: transform .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 30px -10px #38bdf8cc, inset 0 1px 0 #ffffff55; }
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line2); box-shadow: none; }
.btn.ghost:hover { border-color: var(--accent); }
.btn.sm { height: 36px; padding: 0 14px; font-size: 14px; border-radius: 10px; }
.btn.wide { width: 100%; }
.btn[disabled] { opacity: .6; pointer-events: none; }

/* ── 顶栏 ── */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(6, 11, 22, .82); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid #ffffff0d; padding-top: env(safe-area-inset-top, 0px); }
.nav-in { height: 60px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.mark { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #0ea5e9, #6366f1); box-shadow: 0 6px 18px -6px #38bdf8aa; }
.mark svg { width: 20px; height: 20px; }
.brand-t { display: flex; flex-direction: column; line-height: 1.15; }
.brand-t b { font-size: 16px; letter-spacing: .06em; }
.brand-t small { font-size: 9px; letter-spacing: .18em; color: var(--muted); }
.links { display: flex; gap: 4px; margin-left: auto; }
.links a { padding: 6px 12px; border-radius: 8px; color: var(--fg2); font-size: 14px; white-space: nowrap; }
.links a:hover { color: var(--fg); background: #ffffff0a; }
.nav-r { display: flex; align-items: center; gap: 10px; }
.lang { position: relative; display: flex; align-items: center; gap: 4px; height: 36px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line2); background: transparent; font-size: 13px; color: var(--muted); }
.lang i { font-style: normal; opacity: .5; }
.lang::after { content: ""; position: absolute; left: -4px; right: -4px; top: -5px; bottom: -5px; } /* 点击区域 ≥ 44px */
html[lang="zh-CN"] .lang [data-l="zh"], html[lang="en"] .lang [data-l="en"] { color: var(--accent); font-weight: 700; }
.menu { display: none; width: 44px; height: 44px; border: 0; background: transparent; position: relative; }
.menu span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--fg); border-radius: 2px; transition: transform .2s; }
.menu span:first-child { top: 17px; } .menu span:last-child { top: 25px; }
.nav.open .menu span:first-child { transform: translateY(4px) rotate(45deg); }
.nav.open .menu span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ── 首屏 ── */
.hero { position: relative; overflow: hidden; padding: 64px 0 56px;
  background: radial-gradient(900px 480px at 78% 10%, #1d3a6a55, transparent 70%), radial-gradient(700px 400px at 5% 90%, #0e749022, transparent 70%); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(#ffffff08 1px, transparent 1px), linear-gradient(90deg, #ffffff08 1px, transparent 1px); background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 60% 30%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse at 60% 30%, #000 30%, transparent 75%); }
.hero-in { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--accent); letter-spacing: .08em; padding: 4px 12px; border: 1px solid #38bdf833; border-radius: 999px; background: #38bdf80d; }
.hero h1 { margin-top: 18px; font-size: clamp(36px, 5.4vw, 60px); font-weight: 800; letter-spacing: .02em; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #7dd3fc, #a5b4fc); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 18px; max-width: 34em; color: var(--fg2); font-size: 16px; }
.cta { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.play-link { display: inline-flex; align-items: center; gap: 10px; color: var(--fg2); font-size: 14px; padding: 8px 4px; }
.play-link:hover { color: var(--fg); }
.pl-dot { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line2); display: grid; place-items: center; }
.pl-dot::after { content: ""; border-left: 8px solid var(--accent); border-top: 5px solid transparent; border-bottom: 5px solid transparent; margin-left: 2px; }
.stats { margin: 40px 0 0; display: flex; flex-wrap: wrap; justify-content: start; gap: 12px 40px; }
.stats div { display: flex; flex-direction: column-reverse; }
.stats dt { color: var(--muted); font-size: 13px; }
.stats dd { margin: 0; font: 700 28px/1.2 var(--num); font-variant-numeric: tabular-nums; letter-spacing: .01em; }
.hero-card { position: relative; background: linear-gradient(180deg, #111d33, #0b1424); border: 1px solid var(--line2); border-radius: 18px; padding: 18px; box-shadow: 0 30px 80px -30px #000, 0 0 0 1px #38bdf811, 0 0 60px -20px #38bdf844; }
.hc-head { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--fg2); padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.hc-head .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.hc-list { list-style: none; margin: 12px 0; padding: 0; display: grid; gap: 8px; }
.hc-list li { display: grid; grid-template-columns: 28px 1fr auto; grid-template-rows: auto auto; column-gap: 10px; align-items: center; padding: 10px 12px; border-radius: 12px; background: #ffffff06; border: 1px solid #ffffff0a; }
.hc-list li:first-child { background: #38bdf812; border-color: #38bdf840; }
.rk { grid-row: span 2; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; font: 700 13px var(--num); background: #ffffff10; color: var(--fg2); }
li:first-child .rk { background: var(--accent); color: #02121d; }
.nm { font-weight: 700; font-size: 14px; }
.tg { grid-column: 2; font-size: 12px; color: var(--muted); }
.sc { grid-row: 1 / span 2; grid-column: 3; font: 700 22px var(--num); color: var(--accent); }
.hc-foot { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--fg2); padding-top: 12px; border-top: 1px solid var(--line); }
.hc-foot .arrow { color: var(--accent); }
.hc-note { flex: none; font-size: 11px; line-height: 1.5; color: var(--muted); border: 1px solid var(--line2); border-radius: 4px; padding: 0 6px; }

/* ── 通用分区 ── */
.sec { padding: 80px 0; }
.sec.alt { background: var(--bg2); border-top: 1px solid #ffffff08; border-bottom: 1px solid #ffffff08; }
.sec-head { max-width: 640px; margin: 0 auto 36px; text-align: center; display: grid; gap: 10px; }
.sec-head.left { margin: 0; text-align: left; }
.sec-head h2 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 800; letter-spacing: .02em; }
.sec-head p { color: var(--fg2); }

/* ── 播放器 ── */
.player { max-width: 1040px; margin: 0 auto; }
.pv { position: relative; aspect-ratio: 16 / 9; max-width: 100%; border-radius: 16px 16px 0 0; overflow: hidden; background: #02060d; border: 1px solid var(--line2); border-bottom: 0;
  box-shadow: 0 40px 100px -40px #000, 0 0 80px -30px #38bdf855; }
.pv video { width: 100%; height: 100%; display: block; object-fit: contain; background: #02060d; }
.pv-sub { position: absolute; left: 6%; right: 6%; bottom: 3.2%; text-align: center; pointer-events: none; display: flex; justify-content: center; }
.pv-sub span { display: inline-block; padding: .25em .7em; border-radius: 8px; background: rgba(2, 6, 14, .72); color: #fff; font-weight: 600;
  font-size: clamp(13px, 2.1vw, 24px); line-height: 1.45; text-shadow: 0 1px 2px #000; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.player.nocc .pv-sub { display: none; }
.pv-big { position: absolute; inset: 0; margin: auto; width: max-content; height: max-content; display: flex; flex-direction: column; align-items: center; gap: 12px; border: 0; background: transparent; color: #fff; font-size: 14px; font-weight: 600; text-shadow: 0 1px 6px #000; }
.pv-big svg { width: 76px; height: 76px; padding: 20px 18px 20px 24px; border-radius: 50%; fill: #02121d; background: linear-gradient(180deg, #67d3ff, #22a8e8); box-shadow: 0 0 0 10px #38bdf833, 0 10px 40px -6px #38bdf8; transition: transform .2s; }
.pv-big:hover svg { transform: scale(1.06); }
.player.playing .pv-big, .player.started .pv-big, .player.failed .pv-big { display: none; }
/* 加载失败：只留一句提示，不再显示播放、章节和下载 */
.pv-err { position: absolute; inset: 0; margin: 0; display: grid; place-items: center; padding: 24px; text-align: center; color: var(--fg2); font-size: 15px; background: radial-gradient(closest-side, #0b1424cc, #02060dcc); }
.player.failed .pv-bar, .player.failed .chapters, .player.failed .pv-dl { display: none; }
.player.failed .pv { border-radius: 16px; border-bottom: 1px solid var(--line2); }
.pv-load { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.pv-load i { width: 42px; height: 42px; border-radius: 50%; border: 3px solid #ffffff33; border-top-color: var(--accent); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.pv-bar { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: #0b1424; border: 1px solid var(--line2); border-top: 1px solid var(--line); border-radius: 0 0 16px 16px; }
.pv-btn { flex-shrink: 0; height: 36px; min-width: 36px; display: grid; place-items: center; border-radius: 9px; border: 0; background: #ffffff0d; color: var(--fg); }
.pv-btn:hover { background: #ffffff18; }
.pv-btn svg { width: 18px; height: 18px; fill: currentColor; }
.pv-btn svg[fill="none"] { fill: none; }
.pv-btn .i-pause, .player.playing .pv-btn .i-play { display: none; }
.player.playing .pv-btn .i-pause { display: block; }
.pv-btn.txt { font: 700 12px var(--num); padding: 0 9px; color: var(--muted); }
.pv-btn.txt.on { color: #02121d; background: var(--accent); }
.pv-time { flex-shrink: 0; font: 13px var(--num); font-variant-numeric: tabular-nums; color: var(--fg2); white-space: nowrap; }
.pv-track { position: relative; flex: 1; min-width: 60px; height: 28px; cursor: pointer; touch-action: none; }
.pv-track::before, .pv-buf, .pv-fill { content: ""; position: absolute; left: 0; top: 12px; height: 4px; border-radius: 2px; }
.pv-track::before { right: 0; background: #ffffff18; }
.pv-buf { background: #ffffff26; width: 0; }
.pv-fill { background: linear-gradient(90deg, var(--accent), var(--accent2)); width: 0; }
.pv-fill::after { content: ""; position: absolute; right: -6px; top: -4px; width: 12px; height: 12px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 3px #38bdf866; }
.pv-marks i { position: absolute; top: 11px; width: 2px; height: 6px; background: #060b16; }
.pv-seg { flex-shrink: 0; display: flex; padding: 3px; border-radius: 10px; background: #ffffff0d; }
.pv-seg button { height: 30px; padding: 0 10px; border: 0; border-radius: 7px; background: transparent; font-size: 13px; color: var(--fg2); white-space: nowrap; }
.pv-seg button.on { background: var(--accent); color: #02121d; font-weight: 700; }
.chapters { list-style: none; padding: 0; margin: 18px 0 0; display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.chapters button { width: 100%; text-align: left; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: #ffffff04; color: var(--fg2); font-size: 12px; line-height: 1.35; min-height: 52px; }
.chapters button b { display: block; font: 700 11px var(--num); color: var(--muted); margin-bottom: 2px; }
.chapters button:hover { border-color: var(--line2); color: var(--fg); }
.chapters button.on { border-color: #38bdf870; background: #38bdf812; color: var(--fg); }
.chapters button.on b { color: var(--accent); }
.pv-dl { margin-top: 8px; text-align: center; font-size: 13px; }
.pv-dl a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); text-decoration: underline dashed var(--line2); text-underline-offset: 4px; }
.pv-dl a:hover { color: var(--accent); }
.player:fullscreen { background: #000; display: flex; flex-direction: column; justify-content: center; max-width: none; }
.player:fullscreen .pv { border-radius: 0; flex: 1; aspect-ratio: auto; border: 0; }
.player:fullscreen .pv-bar { border-radius: 0; }
.player:fullscreen .chapters, .player:fullscreen .pv-dl { display: none; }

/* ── 服务 ── */
.svc { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.svc li { background: var(--bg); padding: 26px 24px; display: grid; gap: 8px; align-content: start; }
.svc h3 { font-size: 18px; }
.svc h3::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); margin-right: 10px; vertical-align: 3px; transform: rotate(45deg); }
.svc p { color: var(--fg2); font-size: 14px; }

/* ── 流程 ── */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: s; }
.steps li { position: relative; padding: 24px 20px 22px; border-radius: var(--r); background: var(--panel); border: 1px solid var(--line); display: grid; gap: 8px; align-content: start; }
.steps li:not(:last-child)::after { content: ""; position: absolute; top: 40px; right: -13px; width: 10px; height: 10px; border-top: 2px solid var(--line2); border-right: 2px solid var(--line2); transform: rotate(45deg); }
.sn { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font: 800 16px var(--num); color: #02121d; background: linear-gradient(135deg, #67d3ff, #818cf8); }
.steps h3 { font-size: 17px; margin-top: 6px; }
.steps p { color: var(--fg2); font-size: 14px; }

/* ── 保障 ── */
.trust { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
.tl { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.tl li { display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.tl b { font-size: 16px; }
.tl b::before { content: "✓"; color: var(--ok); margin-right: 10px; font-weight: 800; }
.tl span { color: var(--fg2); font-size: 14px; }

/* ── 入口 ── */
.apps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.apps a { height: 100%; display: grid; justify-items: center; gap: 6px; padding: 22px 16px; border-radius: var(--r); background: var(--panel); border: 1px solid var(--line); text-align: center; transition: border-color .15s, transform .15s; }
.apps a:hover { border-color: #38bdf870; transform: translateY(-2px); }
.apps img { width: 104px; height: 104px; padding: 6px; border-radius: 10px; background: #fff; margin-bottom: 6px; }
.apps b { font-size: 16px; }
.apps span { font-size: 13px; color: var(--muted); }
.only-narrow { display: none; }

/* ── 关于 ── */
.about { max-width: 760px; }
.about div { display: grid; gap: 14px; }
.about h2 { font-size: clamp(24px, 3.2vw, 34px); }
.about p { color: var(--fg2); }

/* ── 联系 ── */
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.c-info { display: grid; gap: 12px; }
.c-info h2 { font-size: clamp(24px, 3.2vw, 34px); }
.c-info > p { color: var(--fg2); }
.c-info dl { margin: 12px 0 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.c-info dl div { display: grid; grid-template-columns: 84px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.c-info dt { color: var(--muted); font-size: 13px; padding-top: 2px; }
.c-info dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.c-info dd a { display: inline-flex; align-items: center; min-height: 44px; margin: -10px 0; color: var(--accent); font: 700 20px var(--num); }
.c-form { display: grid; gap: 14px; padding: 24px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line2); }
.c-form label, .c-form fieldset { display: grid; gap: 6px; font-size: 13px; color: var(--fg2); min-width: 0; }
.c-form fieldset { border: 0; padding: 0; margin: 0; }
.c-form legend { padding: 0; margin-bottom: 6px; }
.f2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.c-form input:not([type=radio]), .c-form select, .c-form textarea { width: 100%; min-width: 0; height: 44px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line2); background: #060b16; color: var(--fg); font: 15px var(--sans); outline: none; }
.c-form textarea { height: auto; padding: 10px 12px; resize: vertical; }
.c-form input:focus, .c-form select:focus, .c-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px #38bdf826; }
.c-form .bad { border-color: #f87171 !important; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label { display: block; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips span { display: inline-block; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line2); color: var(--fg2); font-size: 13px; cursor: pointer; }
.chips input:checked + span { border-color: var(--accent); color: var(--accent); background: #38bdf812; }
.chips input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.f-msg { min-height: 1.4em; font-size: 14px; }
.f-msg.ok { color: var(--ok); } .f-msg.err { color: #fca5a5; }
.f-note { font-size: 12px; color: var(--muted); }

/* ── 页脚 ── */
.foot { padding: 36px 0 calc(36px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid #ffffff0d; color: var(--muted); font-size: 13px; }
.foot-in { display: flex; justify-content: space-between; gap: 16px 32px; flex-wrap: wrap; }
.foot b { color: var(--fg2); }
.beian { display: flex; flex-wrap: wrap; gap: 0 18px; align-items: center; }
.beian a { display: inline-flex; align-items: center; min-height: 44px; }
.beian a:hover { color: var(--fg); }
.ai-fab { position: fixed; right: max(18px, env(safe-area-inset-right, 0px)); bottom: calc(18px + env(safe-area-inset-bottom, 0px)); z-index: 40; display: flex; align-items: center; gap: 8px; height: 48px; padding: 0 18px 0 14px; border-radius: 999px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1); color: #fff; font-weight: 700; font-size: 14px; box-shadow: 0 12px 30px -8px #38bdf8aa; }
.ai-fab svg { width: 22px; height: 22px; }

/* ── 响应式 ── */
@media (max-width: 1020px) {
  .links { display: none; }
  .menu { display: block; }
  .nav.open .links { display: flex; flex-direction: column; position: absolute; left: 0; right: 0; top: 100%; padding: 8px var(--gut) 16px; background: #060b16f2; border-bottom: 1px solid var(--line); }
  .nav.open .links a { padding: 12px 8px; font-size: 16px; border-bottom: 1px solid #ffffff08; }
  .nav-r { margin-left: auto; }
  .hero-in { grid-template-columns: 1fr; gap: 36px; }
  .hero-card { max-width: 480px; }
  .chapters { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li::after { display: none; }
  .apps { grid-template-columns: 1fr 1fr; }
  .trust, .contact { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 640px) {
  body { font-size: 15px; }
  .nav-in { gap: 12px; height: 56px; }
  .nav-r .btn.sm { display: none; }
  .brand-t small { display: none; }
  .hero { padding: 40px 0 44px; }
  .lead { font-size: 15px; }
  .cta .btn { flex: 1 1 100%; }
  .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
  .stats dd { font-size: 24px; }
  .sec { padding: 56px 0; }
  .sec-head { text-align: left; margin-bottom: 26px; }
  .pv { border-radius: 12px 12px 0 0; }
  .pv-bar { flex-wrap: wrap; gap: 8px; border-radius: 0 0 12px 12px; padding: 8px 10px; }
  .pv-track { order: -1; flex: 1 1 100%; height: 22px; }
  .pv-track::before, .pv-buf, .pv-fill { top: 9px; }
  .pv-marks i { top: 8px; }
  .pv-time { margin-right: auto; }
  .chapters { grid-template-columns: 1fr 1fr; }
  .svc { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .tl li { grid-template-columns: 1fr; gap: 4px; }
  .apps img { display: none; }
  .only-wide { display: none; }
  .only-narrow { display: inline; }
  .apps a { padding: 18px 12px; }
  .f2 { grid-template-columns: 1fr; }
  .c-form { padding: 18px; }
  .ai-fab span { display: none; }
  .foot { padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)); } /* 给右下角 AI 客服按钮留位置 */
  .ai-fab { width: 52px; height: 52px; padding: 0; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }

/* 节日主题条（后台「节日主题」配置，只在有效期内显示） */
.holiday { background: color-mix(in srgb, var(--accent) 16%, var(--bg)); border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); color: var(--fg); font-size: 14px; }
.holiday .wrap { display: flex; align-items: center; gap: 10px; min-height: 40px; padding-top: 8px; padding-bottom: 8px; }
.holiday .hb-dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 25%, transparent); }
.c-form.off .f-off { display: block; }
.f-off { display: none; margin: 0 0 14px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line2); color: var(--fg2); font-size: 14px; }