/* 海川传媒官网 — 手机优先，电脑端自适应 */
:root {
  --brand: #1a318e;
  --brand-600: #22409f;
  --brand-700: #142774;
  --brand-900: #0b1645;
  --accent: #5b8cff;
  --accent-soft: #e8eeff;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --tint: #f4f6fc;
  --warn-bg: #fff7ed;
  --warn-line: #fed7aa;
  --ok: #15803d;
  --err: #b91c1c;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(26, 49, 142, .08);
  --wrap: 1120px;
  --gutter: 16px;
  --header-h: 60px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-600); }
h1, h2, h3 { line-height: 1.3; margin: 0 0 .5em; letter-spacing: .01em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 800px; }
.center { text-align: center; }
.muted { color: var(--muted); font-size: 14px; }
.sr-only, .hp { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 22px; border-radius: 999px;
  border: 1.5px solid transparent; font-weight: 600; font-size: 15px; line-height: 1.2;
  cursor: pointer; transition: background .2s, color .2s, border-color .2s, transform .1s;
  text-align: center; white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-sm { min-height: 36px; padding: 6px 16px; font-size: 14px; }
.btn-lg { min-height: 50px; padding: 12px 28px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-600); color: #fff; }
.btn-outline { border-color: var(--brand); color: var(--brand); background: #fff; }
.btn-outline:hover { background: var(--accent-soft); }
.btn-white { background: #fff; color: var(--brand); }
.btn-white:hover { background: var(--accent-soft); color: var(--brand-700); }
.btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; border-color: #fff; }
.btn[disabled] { opacity: .6; cursor: wait; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  -webkit-backdrop-filter: saturate(160%) blur(10px); backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.brand img { height: 30px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 18px; letter-spacing: .12em; }
.brand-text small { font-size: 9.5px; letter-spacing: .22em; color: var(--muted); margin-top: 3px; }
.brand-light, .brand-light:hover { color: #fff; }
.brand-light small { color: rgba(255,255,255,.6); }

.nav-toggle {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; margin-right: -10px; padding: 0 11px;
  background: none; border: 0; cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .2s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  position: fixed; left: 0; right: 0; top: var(--header-h);
  display: flex; flex-direction: column; padding: 8px var(--gutter) 20px;
  background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px rgba(15,23,42,.08);
  transform: translateY(-8px); opacity: 0; visibility: hidden; transition: all .2s;
}
.nav-open .site-nav { transform: none; opacity: 1; visibility: visible; }
.site-nav a { padding: 12px 4px; color: var(--ink-2); font-size: 16px; border-bottom: 1px solid var(--line); }
.site-nav a[aria-current="page"] { color: var(--brand); font-weight: 600; }
.site-nav .nav-cta { margin-top: 14px; border: 0; color: #fff; padding: 12px; }

@media (min-width: 860px) {
  :root { --header-h: 68px; --gutter: 24px; }
  .nav-toggle { display: none; }
  .site-nav {
    position: static; flex-direction: row; align-items: center; gap: 6px; padding: 0;
    background: none; border: 0; box-shadow: none; transform: none; opacity: 1; visibility: visible;
  }
  .site-nav a { border: 0; padding: 8px 14px; font-size: 15px; border-radius: 8px; }
  .site-nav a:hover { color: var(--brand); background: var(--tint); }
  .site-nav .nav-cta { margin: 0 0 0 10px; padding: 6px 18px; }
  .site-nav .nav-cta:hover { background: var(--brand-600); color: #fff; }
}

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1000px 480px at 85% -10%, rgba(91,140,255,.35), transparent 60%),
    radial-gradient(700px 400px at -10% 110%, rgba(91,140,255,.22), transparent 60%),
    linear-gradient(160deg, var(--brand-700) 0%, var(--brand) 55%, #2346b8 100%);
}
.hero-inner { position: relative; padding: 56px var(--gutter) 64px; }
.hero h1 { font-size: clamp(28px, 7.4vw, 52px); font-weight: 800; margin-bottom: 18px; letter-spacing: .02em; }
.hero .hl { background: linear-gradient(90deg, #a9c3ff, #fff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: clamp(15px, 2.2vw, 18px); color: rgba(255,255,255,.86); max-width: 640px; }
.br-md { display: none; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .12em; color: #c7d6ff; margin-bottom: 14px; }
.eyebrow-dark { color: var(--brand); margin-bottom: 8px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 26px; }
.hero-actions .btn { flex: 1 1 100%; }
.hero-points { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 14px; color: rgba(255,255,255,.82); }
.hero-points li { display: inline-flex; align-items: center; gap: 7px; }
.hero-points li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #8fb0ff; }

/* 声波动画：呼应 logo 的竖线声波 */
.hero-wave {
  position: absolute; right: -40px; bottom: -10px; height: 70%; width: 70%;
  display: flex; align-items: center; justify-content: flex-end; gap: 10px;
  opacity: .16; pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 40%); mask-image: linear-gradient(90deg, transparent, #000 40%);
}
.hero-wave i { flex: 0 0 6px; border-radius: 6px; background: #fff; height: 20%; animation: wave 2.6s ease-in-out infinite; }
.hero-wave i:nth-child(3n)   { animation-delay: -.4s; }
.hero-wave i:nth-child(3n+1) { animation-delay: -1.1s; }
.hero-wave i:nth-child(4n)   { animation-delay: -1.7s; animation-duration: 3.2s; }
.hero-wave i:nth-child(5n)   { animation-delay: -.8s; animation-duration: 2.2s; }
@keyframes wave { 0%, 100% { height: 18%; } 50% { height: 92%; } }
@media (prefers-reduced-motion: reduce) { .hero-wave i { animation: none; height: 50%; } html { scroll-behavior: auto; } }

@media (min-width: 640px) {
  .hero-actions .btn { flex: 0 0 auto; }
}
@media (min-width: 860px) {
  .hero-inner { padding: 96px var(--gutter) 104px; }
  .br-md { display: inline; }
  .hero-wave { width: 52%; height: 86%; gap: 14px; opacity: .2; }
  .hero-wave i { flex-basis: 8px; }
}

/* ---------- 内页头部 ---------- */
.page-hero { background: linear-gradient(160deg, var(--brand-700), var(--brand)); color: #fff; padding: 28px 0 40px; }
.page-hero h1 { font-size: clamp(28px, 6vw, 42px); font-weight: 800; }
.page-hero .lead { color: rgba(255,255,255,.85); max-width: 680px; margin: 0; }
.crumbs { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 18px; }
.crumbs a { color: rgba(255,255,255,.85); }
.crumbs a::after { content: "/"; margin: 0 8px; color: rgba(255,255,255,.45); }
.tabs { display: flex; gap: 8px; margin-top: 24px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a { flex: 0 0 auto; padding: 7px 14px; border-radius: 999px; background: rgba(255,255,255,.12); color: #fff; font-size: 14px; }
.tabs a:hover { background: rgba(255,255,255,.22); color: #fff; }
@media (min-width: 860px) { .page-hero { padding: 40px 0 64px; } }

/* ---------- 通用版块 ---------- */
.section { padding: 56px 0; }
.section-tint { background: var(--tint); }
.section-head { max-width: 720px; margin-bottom: 32px; }
.section-head h2 { font-size: clamp(24px, 4.6vw, 34px); font-weight: 800; }
.section-head p { color: var(--ink-2); margin: 0; }
@media (min-width: 860px) { .section { padding: 88px 0; } .section-head { margin-bottom: 44px; } }

/* 流程 */
.flow { display: grid; gap: 14px; grid-template-columns: 1fr; counter-reset: flow; }
.flow-item { position: relative; padding: 22px 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.flow-no { display: block; font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: .1em; margin-bottom: 6px; }
.flow-item h3 { font-size: 18px; margin-bottom: 6px; }
.flow-item p { color: var(--ink-2); font-size: 15px; margin: 0; }
@media (min-width: 600px) { .flow { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .flow { grid-template-columns: repeat(4, 1fr); } }

/* 岗位卡片 */
.cards { display: grid; gap: 14px; grid-template-columns: 1fr; }
.card {
  display: flex; flex-direction: column; padding: 24px 22px; border-radius: var(--radius);
  background: #fff; color: var(--ink); box-shadow: var(--shadow); border: 1px solid transparent;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); border-color: #c9d6ff; color: var(--ink); }
.card-icon { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); display: grid; place-items: center; margin-bottom: 16px; }
.card-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--brand); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 19px; }
.card p { color: var(--ink-2); font-size: 15px; flex: 1; }
.card-more { color: var(--brand); font-weight: 600; font-size: 14px; }
.card-more::after { content: " →"; }
@media (min-width: 600px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1040px) { .cards { grid-template-columns: repeat(4, 1fr); } }

/* 福利 */
.perks { display: grid; gap: 0; grid-template-columns: 1fr; }
.perk { padding: 20px 0 18px 18px; border-left: 3px solid var(--accent-soft); margin-bottom: 8px; }
.perk h3 { font-size: 18px; margin-bottom: 6px; }
.perk p { color: var(--ink-2); font-size: 15px; margin: 0; }
.perk:hover { border-left-color: var(--brand); }
@media (min-width: 700px) { .perks { grid-template-columns: 1fr 1fr; gap: 12px 40px; } }
@media (min-width: 1040px) { .perks { grid-template-columns: repeat(3, 1fr); } }

/* 加入步骤 */
.steps { list-style: none; counter-reset: step; display: grid; gap: 14px; margin-bottom: 36px; }
.steps li { counter-increment: step; position: relative; padding: 20px 20px 18px 72px; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.steps li::before {
  content: counter(step); position: absolute; left: 20px; top: 20px;
  width: 36px; height: 36px; border-radius: 50%; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-weight: 700;
}
.steps h3 { font-size: 18px; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--ink-2); font-size: 15px; }
@media (min-width: 980px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
  .steps li { padding: 72px 20px 22px; }
}

/* FAQ */
.faq { border-top: 1px solid var(--line); margin-bottom: 28px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 40px 18px 0; position: relative;
  font-weight: 600; font-size: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 10px; height: 10px; margin-top: -7px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg); transition: transform .2s;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { color: var(--ink-2); padding: 0 0 18px; margin: 0; }
.faq-group { font-size: 20px; margin: 36px 0 12px; color: var(--brand); }
.faq-group:first-child { margin-top: 0; }
.link-more { font-weight: 600; }
.link-more::after { content: " →"; }

/* CTA */
.cta-band { background: linear-gradient(120deg, var(--brand-900), var(--brand) 70%, #2a52c9); color: #fff; padding: 48px 0; }
.cta-inner { display: flex; flex-direction: column; gap: 22px; }
.cta-inner h2 { font-size: clamp(22px, 4vw, 30px); margin-bottom: 6px; }
.cta-inner p { color: rgba(255,255,255,.8); margin: 0; }
.cta-inner .btn { align-self: stretch; }
@media (min-width: 760px) {
  .cta-band { padding: 60px 0; }
  .cta-inner { flex-direction: row; align-items: center; justify-content: space-between; }
  .cta-inner .btn { align-self: center; }
}

/* ---------- 岗位页 ---------- */
.job-list { display: grid; gap: 22px; }
.job { padding: 26px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.job header { margin-bottom: 18px; padding-bottom: 16px; border-bottom: 1px dashed var(--line); }
.job header h2 { font-size: clamp(22px, 4vw, 28px); }
.job header p:last-child { color: var(--ink-2); margin: 0; }
.job-grid { display: grid; gap: 18px; }
.job h3 { font-size: 16px; color: var(--brand); }
.job ul, .checklist { list-style: none; }
.job li { position: relative; padding-left: 18px; margin-bottom: 8px; color: var(--ink-2); font-size: 15px; }
.job li::before { content: ""; position: absolute; left: 2px; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
@media (min-width: 760px) { .job { padding: 34px 36px; } .job-grid { grid-template-columns: 1fr 1fr; gap: 36px; } }
.checklist { display: grid; gap: 12px; grid-template-columns: 1fr; }
.checklist li { position: relative; padding: 14px 16px 14px 46px; background: #fff; border-radius: var(--radius-sm); border: 1px solid var(--line); }
.checklist li::before {
  content: ""; position: absolute; left: 16px; top: 50%; width: 16px; height: 9px; margin-top: -7px;
  border-left: 2.5px solid var(--ok); border-bottom: 2.5px solid var(--ok); transform: rotate(-45deg);
}
@media (min-width: 700px) { .checklist { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1040px) { .checklist { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 关于页 ---------- */
.about-grid { display: grid; gap: 32px; }
.prose h2 { font-size: 24px; margin-top: 1.6em; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--ink-2); }
.about-card { padding: 26px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); align-self: start; }
.about-card img { width: 100%; max-width: 300px; margin: 0 auto 18px; }
.about-card dl { margin: 0 0 20px; }
.about-card dl div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.about-card dt { color: var(--muted); }
.about-card dd { margin: 0; font-weight: 600; text-align: right; }
@media (min-width: 900px) { .about-grid { grid-template-columns: 1fr 360px; gap: 56px; } .about-card { position: sticky; top: calc(var(--header-h) + 24px); } }

/* ---------- 报名页 ---------- */
.join-grid { display: grid; gap: 28px; }
.apply-form { padding: 24px 18px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.apply-form h2 { font-size: 24px; }
.form-note { color: var(--muted); font-size: 14px; }
.req { color: var(--err); }
.field { display: block; margin: 0 0 18px; border: 0; padding: 0; min-width: 0; flex: 1; }
.field-sm { flex: 0 0 104px; }
.field-row { display: flex; gap: 12px; }
.field label, .field legend { display: block; font-weight: 600; font-size: 15px; margin-bottom: 6px; padding: 0; }
.field small { font-weight: 400; color: var(--muted); font-size: 13px; margin-left: 4px; }
.field input, .field select, .field textarea {
  width: 100%; min-height: 46px; padding: 10px 14px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--line); background: #fff; color: var(--ink);
  font: inherit; font-size: 16px; /* 16px 防止 iOS 自动放大 */
  transition: border-color .2s, box-shadow .2s; -webkit-appearance: none; appearance: none;
}
.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px;
}
.field textarea { resize: vertical; min-height: 90px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px var(--accent-soft); }
.field .invalid, .field.invalid input { border-color: var(--err); }
.field.invalid .chips span { border-color: #fca5a5; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label { position: relative; margin: 0; font-weight: 400; }
.chips input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chips span {
  display: inline-flex; align-items: center; min-height: 40px; padding: 6px 14px; border-radius: 999px;
  border: 1.5px solid var(--line); font-size: 15px; cursor: pointer; transition: all .15s; user-select: none;
}
.chips input:checked + span { background: var(--brand); border-color: var(--brand); color: #fff; }
.chips input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.agree { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--ink-2); margin: 6px 0 20px; cursor: pointer; }
.agree input { width: 20px; height: 20px; margin: 3px 0 0; flex: 0 0 auto; accent-color: var(--brand); }
.agree.invalid { color: var(--err); }
.form-msg { margin: 14px 0 0; font-size: 15px; min-height: 1.5em; }
.form-msg.ok { color: var(--ok); font-weight: 600; }
.form-msg.err { color: var(--err); }
.form-done { text-align: center; padding: 36px 8px; }
.form-done .done-icon { width: 64px; height: 64px; border-radius: 50%; background: #dcfce7; margin: 0 auto 18px; position: relative; }
.form-done .done-icon::after { content: ""; position: absolute; left: 22px; top: 20px; width: 22px; height: 12px; border-left: 3px solid var(--ok); border-bottom: 3px solid var(--ok); transform: rotate(-45deg); }
.form-done h2 { font-size: 24px; }
.form-done p { color: var(--ink-2); }

.join-side { display: grid; gap: 16px; align-content: start; }
.side-card { padding: 22px; border-radius: var(--radius); background: var(--tint); }
.side-card h2 { font-size: 17px; margin-bottom: 10px; }
.side-card .qr { margin: 0 auto 12px; border-radius: 8px; background: #fff; padding: 8px; }
.big-id { font-size: 22px; font-weight: 800; color: var(--brand); letter-spacing: .04em; margin-bottom: 12px; word-break: break-all; }
.side-card .muted { margin: 10px 0 0; }
.mini-steps { padding-left: 1.3em; color: var(--ink-2); font-size: 15px; }
.mini-steps li { margin-bottom: 6px; }
.side-warn { background: var(--warn-bg); border: 1px solid var(--warn-line); }
.side-warn p { margin: 0; font-size: 15px; color: #9a3412; }
@media (min-width: 900px) {
  .join-grid { grid-template-columns: 1fr 340px; gap: 40px; }
  .apply-form { padding: 36px 36px 30px; }
  .join-side { position: sticky; top: calc(var(--header-h) + 24px); }
}

/* 404 */
.notfound { padding: 96px 0; }
.nf-code { font-size: 96px; font-weight: 900; line-height: 1; color: var(--accent-soft); -webkit-text-stroke: 2px var(--brand); margin-bottom: 18px; }
.lead-dark { color: var(--ink-2); }
.center-actions { justify-content: center; }
.center-actions .btn { flex: 0 0 auto; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--brand-900); color: rgba(255,255,255,.72); font-size: 14px; padding: 48px 0 0; }
.footer-grid { display: grid; gap: 30px; padding-bottom: 32px; }
.footer-brand p { margin: 16px 0 0; max-width: 420px; line-height: 1.8; }
.site-footer h2 { font-size: 15px; color: #fff; margin-bottom: 12px; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: rgba(255,255,255,.78); }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px; padding-bottom: calc(18px + env(safe-area-inset-bottom)); font-size: 13px; color: rgba(255,255,255,.5); }
.footer-bottom p { margin: 0 0 4px; }
.footer-bottom a { color: rgba(255,255,255,.6); }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; gap: 48px; } }

.copy-inline { background: none; border: 0; padding: 0; color: inherit; font-weight: 600; cursor: pointer; text-decoration: underline dotted; text-underline-offset: 3px; }
.copy-inline:hover { color: #fff; }
.about-card .copy-inline:hover { color: var(--brand); }

/* 提示条 */
.toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: rgba(15,23,42,.92); color: #fff; padding: 10px 18px; border-radius: 999px; font-size: 14px;
  opacity: 0; visibility: hidden; transition: all .25s; z-index: 200; max-width: calc(100% - 32px); text-align: center;
}
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }