/* ============================================================
   永艺 UE 官网改版原型 V2 · 结构 1:1 对齐现站
   黑白暖灰 + 单一 UE 钴蓝(仅 CTA / 链接 / 强调)
   ============================================================ */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("../fonts/space-grotesk-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+2000-206F, U+2191, U+2193, U+2212;
}

:root {
  --ink: #0b0d10;
  --ink-soft: #1a1d21;
  --paper: #f5f5f3;
  --mist: #e7e8e5;
  --steel: #6b7178;
  --brand: #0f3fb6;
  --white: #ffffff;
  --font-zh: "PingFang SC", "MiSans", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-latin: "Space Grotesk", "PingFang SC", "Microsoft YaHei", sans-serif;
  --max: 1280px;
  --pad: clamp(20px, 4vw, 56px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-zh); background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; }
::selection { background: var(--brand); color: var(--white); }

.wrap { max-width: var(--max); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

/* ---------- 排版角色 ---------- */
.eyebrow {
  font-family: var(--font-latin);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel);
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before { content: ""; width: 2px; height: 14px; background: var(--brand); flex: none; }
.display { font-weight: 700; letter-spacing: 0.01em; line-height: 1.25; font-size: clamp(28px, 4vw, 48px); }
.latin, .num { font-family: var(--font-latin); letter-spacing: 0.01em; }
.lede { color: var(--steel); max-width: 36em; }

.btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 26px; border-radius: 999px; font-size: 15px; border: 1px solid var(--ink); transition: all 0.22s var(--ease); cursor: pointer; background: transparent; }
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--brand); border-color: var(--brand); }
.btn-ghost:hover { background: var(--ink); color: var(--white); }
.link-more { font-size: 15px; color: var(--brand); border-bottom: 1px solid transparent; }
.link-more:hover { border-bottom-color: var(--brand); }

/* ---------- 导航(结构与现站一致:7 项 + 下拉) ---------- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; background: rgba(245,245,243,0.92); backdrop-filter: blur(14px); border-bottom: 1px solid var(--mist); }
.nav-inner { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); height: 64px; display: flex; align-items: center; gap: 34px; }
.nav-logo img { height: 22px; width: auto; filter: brightness(0); }
.nav-menu { display: flex; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a, .nav-item > button {
  display: block; padding: 20px 13px; font-size: 14.5px; color: var(--ink);
  background: none; border: none; cursor: pointer; line-height: 1.6;
  border-bottom: 2px solid transparent; transition: border-color 0.2s;
}
.nav-item:hover > a, .nav-item:hover > button,
.nav-item > a[aria-current] { border-bottom-color: var(--brand); }
.drop {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(6px);
  min-width: 230px; background: var(--white); border: 1px solid var(--mist);
  box-shadow: 0 24px 60px rgba(11,13,16,0.12); padding: 18px 0 14px;
  opacity: 0; visibility: hidden; transition: all 0.18s var(--ease);
}
.nav-item:hover .drop, .nav-item:focus-within .drop { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.drop-group { padding: 4px 24px 10px; }
.drop-group + .drop-group { border-top: 1px solid var(--mist); padding-top: 12px; }
.drop-group h5 { font-size: 12px; color: var(--steel); font-weight: 500; letter-spacing: 0.08em; margin-bottom: 6px; }
.drop-group h5 a { color: inherit; }
.drop-group h5 a:hover { color: var(--brand); }
.drop a { display: block; font-size: 13.5px; padding: 4px 0; color: var(--ink-soft); white-space: nowrap; }
.drop a:hover { color: var(--brand); }
.drop.wide { min-width: 520px; display: none; grid-template-columns: 1fr 1fr; }
.nav-item:hover .drop.wide, .nav-item:focus-within .drop.wide { display: grid; }

/* ---------- 页面头部(page hero) ---------- */
.page-hero { padding: 150px 0 64px; background: var(--paper); }
.page-hero h1 { margin-top: 14px; }
.page-hero .lede { margin-top: 16px; }
.chapter-nav { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; }
.chapter-nav a {
  border: 1px solid var(--mist); background: var(--white); border-radius: 999px;
  padding: 9px 20px; font-size: 14px; color: var(--ink-soft); transition: all 0.2s;
}
.chapter-nav a:hover { border-color: var(--ink); }

/* ---------- 首页轮播(6 帧,形式沿用现站) ---------- */
.carousel { position: relative; height: 100svh; min-height: 620px; overflow: hidden; background: var(--ink); }
.frames { display: flex; height: 100%; transition: transform 0.75s var(--ease); }
.frame { position: relative; flex: 0 0 100%; height: 100%; overflow: hidden; display: flex; align-items: flex-end; }
.frame-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.frame-body { position: relative; width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--pad) 110px; }
.frame.ink { background: linear-gradient(150deg, #101216 0%, #0b0d10 60%, #10141c 100%); color: var(--white); align-items: center; }
.frame.ink .frame-body { padding-bottom: 0; }
.frame.paper { background: var(--paper); color: var(--ink); align-items: center; }
.frame.paper .frame-body { padding-bottom: 0; }
.frame.photo { color: var(--white); }
.frame.photo::after { content: ""; position: absolute; inset: auto 0 0 0; height: 42%; background: linear-gradient(to top, rgba(5,6,8,0.62), transparent); }
.frame.photo .frame-body { z-index: 1; }
.frame.photo.light { color: var(--ink); }
.frame.photo.light::after { background: linear-gradient(to top, rgba(245,245,243,0.8), transparent); }
.frame .eyebrow { color: rgba(255,255,255,0.66); }
.frame.paper .eyebrow, .frame.photo.light .eyebrow { color: var(--steel); }
.frame h2 { font-size: clamp(28px, 3.6vw, 48px); font-weight: 700; line-height: 1.28; margin-top: 14px; max-width: 15em; }
.frame .sub { margin-top: 12px; font-size: 15.5px; max-width: 34em; color: rgba(255,255,255,0.7); }
.frame.paper .sub, .frame.photo.light .sub { color: var(--steel); }
.frame .cta-row { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }
.frame.ink .btn, .frame.photo .btn { border-color: rgba(255,255,255,0.8); color: var(--white); }
.frame.ink .btn:hover, .frame.photo .btn:hover { background: var(--white); color: var(--ink); }
/* 帧1:三个第一(排版化) */
.firsts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,0.14); margin-top: 44px; }
.firsts > div { background: rgba(11,13,16,0.86); padding: 26px 26px 24px; }
.firsts .num { font-size: clamp(24px, 2.6vw, 38px); font-weight: 500; line-height: 1.1; }
.firsts .num sup { font-size: 0.4em; color: #7d9bf0; margin-left: 2px; }
.firsts p { font-size: 13.5px; color: rgba(255,255,255,0.6); margin-top: 8px; }
.frame .footnote { margin-top: 22px; font-size: 11.5px; color: rgba(255,255,255,0.34); max-width: 62em; }
/* 轮播控件 */
.car-ui { position: absolute; z-index: 5; left: 0; right: 0; bottom: 0; }
.car-ui-inner { max-width: var(--max); margin: 0 auto; padding: 0 calc(var(--pad) + 128px) 30px var(--pad); display: flex; align-items: center; gap: 22px; }
.dots { display: flex; gap: 10px; margin-right: auto; }
.dots button { width: 26px; height: 3px; border: none; background: rgba(255,255,255,0.3); cursor: pointer; transition: background 0.2s; }
.dots button.on { background: var(--white); }
.car-count { font-family: var(--font-latin); font-size: 13px; color: rgba(255,255,255,0.7); letter-spacing: 0.1em; }
.car-arrows { display: flex; gap: 10px; }
.car-arrows button {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.4);
  background: transparent; color: var(--white); font-size: 16px; cursor: pointer; transition: all 0.2s;
}
.car-arrows button:hover { background: var(--white); color: var(--ink); border-color: var(--white); }
.carousel.on-light .dots button { background: rgba(11,13,16,0.22); }
.carousel.on-light .dots button.on { background: var(--ink); }
.carousel.on-light .car-count { color: var(--steel); }
.carousel.on-light .car-arrows button { border-color: rgba(11,13,16,0.35); color: var(--ink); }
.carousel.on-light .car-arrows button:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }

/* ---------- 首页 screen 区块 ---------- */
.screen { position: relative; min-height: 88svh; display: flex; align-items: center; overflow: hidden; }
.screen-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.screen.dark { background: var(--ink); color: var(--white); }
.screen.dark .veil { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(5,6,8,0.78) 10%, rgba(5,6,8,0.3) 65%); }
.screen-body { position: relative; width: 100%; max-width: var(--max); margin: 0 auto; padding: 88px var(--pad); }
.screen.dark .eyebrow { color: rgba(255,255,255,0.6); }
.screen h2 { font-size: clamp(26px, 3.2vw, 42px); font-weight: 700; line-height: 1.3; margin-top: 14px; max-width: 17em; }
.screen .sub { margin-top: 16px; font-size: 15.5px; max-width: 36em; color: rgba(255,255,255,0.72); }
.screen .links { margin-top: 28px; display: flex; gap: 26px; flex-wrap: wrap; }
.screen .links a { font-size: 15px; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 4px; transition: all 0.2s; }
.screen .links a:hover { color: #9db6f5; border-color: #9db6f5; }
.screen.kv-light { background: #e9eae7; color: var(--ink); align-items: flex-end; min-height: 92svh; }
.screen.kv-light .kv-veil { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(245,245,243,0.95) 0%, rgba(245,245,243,0.72) 34%, rgba(245,245,243,0) 62%); }
.screen.kv-light .sub { color: var(--steel); }
.screen.kv-light .links a { border-color: rgba(11,13,16,0.35); }
.screen.kv-light .links a:hover { color: var(--brand); border-color: var(--brand); }
/* 双拼场景 */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.duo a { position: relative; aspect-ratio: 4 / 4.1; overflow: hidden; display: flex; align-items: flex-end; color: var(--white); background: var(--ink); }
.duo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.94; transition: transform 1s var(--ease); }
.duo a:hover img { transform: scale(1.035); }
.duo a::after { content: ""; position: absolute; inset: auto 0 0 0; height: 40%; background: linear-gradient(to top, rgba(5,6,8,0.66), transparent); }
.duo .cap { position: relative; z-index: 1; padding: 28px; width: 100%; display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.duo .cap h3 { font-size: 20px; font-weight: 700; }
.duo .cap span { font-size: 13.5px; opacity: 0.8; }
/* 关于永艺 screen(三段切换) */
.about-screen { background: linear-gradient(120deg, #d9dad7, #eceded); }
.about-screen .screen-media { opacity: 0.55; filter: grayscale(1); }
.about-tabs { margin-top: 30px; border-top: 1px solid rgba(11,13,16,0.15); }
.about-tab-btns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.about-tab-btns button {
  border: 1px solid rgba(11,13,16,0.2); background: rgba(255,255,255,0.6); border-radius: 999px;
  padding: 8px 18px; font-size: 13.5px; cursor: pointer; transition: all 0.2s;
}
.about-tab-btns button.on { background: var(--ink); color: var(--white); border-color: var(--ink); }
.about-pane { display: none; margin-top: 22px; max-width: 44em; }
.about-pane.on { display: block; }
.about-pane h3 { font-size: 18px; font-weight: 700; }
.about-pane p { font-size: 14.5px; color: var(--ink-soft); margin-top: 8px; }
.about-pane .link-more { display: inline-block; margin-top: 10px; }

/* ---------- 通用区块 ---------- */
.section { padding: clamp(64px, 8vw, 112px) 0; }
.content-card { background: var(--white); border: 1px solid var(--mist); padding: clamp(32px, 4.5vw, 64px); }
.content-card + .content-card { margin-top: 18px; }
.section-head { margin-bottom: clamp(28px, 3.5vw, 44px); }
.section-head h2 { margin-top: 12px; font-size: clamp(24px, 2.8vw, 36px); font-weight: 700; line-height: 1.35; }
.section-head .lede { margin-top: 12px; }

/* 特性四联(核心技术等) */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.feature { border-top: 2px solid var(--ink); padding-top: 18px; }
.feature h3 { font-size: 16.5px; font-weight: 700; }
.feature p { font-size: 13.5px; color: var(--steel); margin-top: 8px; line-height: 1.7; }

/* 左右拼(科研与验证等) */
.split-row { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.split-row img { width: 100%; height: 100%; max-height: 460px; object-fit: cover; }

/* 徽标/入口 chips */
.chip-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.chip { border: 1px solid var(--mist); background: var(--paper); border-radius: 999px; padding: 8px 18px; font-size: 13.5px; color: var(--ink-soft); transition: all 0.2s; }
a.chip:hover { border-color: var(--ink); }

/* 信任资产墙 */
.creds { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 32px; }
.cred { border: 1px solid var(--mist); background: var(--white); padding: 24px 20px; min-height: 140px; display: flex; flex-direction: column; justify-content: space-between; transition: border-color 0.2s; }
.cred:hover { border-color: var(--ink); }
.cred .mark { font-family: var(--font-latin); font-weight: 500; font-size: 17px; letter-spacing: 0.04em; }
.cred p { font-size: 13px; color: var(--steel); line-height: 1.6; margin-top: 10px; }
.cred .view { font-size: 12.5px; color: var(--brand); margin-top: 8px; }

/* 深色横带 */
.band-dark { background: var(--ink); color: var(--white); padding: clamp(56px, 7vw, 92px) 0; }
.band-dark .eyebrow { color: rgba(255,255,255,0.6); }
.band-dark h2 { font-size: clamp(24px, 2.8vw, 36px); font-weight: 700; margin-top: 12px; }
.band-dark .lede { color: rgba(255,255,255,0.65); }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,0.12); margin-top: 36px; }
.support-grid div { background: var(--ink); padding: 22px 24px; font-size: 15px; display: flex; align-items: center; gap: 12px; }
.support-grid div::before { content: ""; width: 2px; height: 14px; background: var(--brand); filter: brightness(1.7); flex: none; }

/* 统计横带(关于页) */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,0.12); }
.stat-band { background: var(--ink); color: var(--white); }
.stat-cell { background: var(--ink); padding: 42px var(--pad) 38px; }
.stat-cell .num { font-size: clamp(28px, 3vw, 42px); font-weight: 500; line-height: 1.1; }
.stat-cell p { font-size: 13.5px; color: rgba(255,255,255,0.6); margin-top: 8px; }

/* 时间轴(发展历程) */
.timeline { margin-top: 12px; }
.tl-item { display: grid; grid-template-columns: 130px 1fr; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--mist); }
.tl-item:last-child { border-bottom: none; }
.tl-item .years { font-family: var(--font-latin); font-size: 14px; color: var(--brand); padding-top: 3px; }
.tl-item h3 { font-size: 17px; font-weight: 700; }
.tl-item p { font-size: 14px; color: var(--steel); margin-top: 6px; }

/* 文化横带 */
.culture-band { position: relative; min-height: 46svh; display: flex; align-items: center; background: var(--ink); color: var(--white); overflow: hidden; }
.culture-band img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.4; filter: grayscale(1); }
.culture-band .screen-body { text-align: left; }

/* 门户行(关于页 ESG/新闻/投资者/加入/联系) */
.portal-row { border-top: 1px solid var(--mist); padding: 40px 0; display: grid; grid-template-columns: 260px 1fr auto; gap: 28px; align-items: start; }
.portal-row h2 { font-size: 20px; font-weight: 700; }
.portal-row p { font-size: 14px; color: var(--steel); max-width: 40em; }
.portal-row .chip-row { margin-top: 0; }
.portal-row .link-more { white-space: nowrap; padding-top: 2px; }

/* 照片横带 */
.photo-band { height: clamp(300px, 52vw, 560px); overflow: hidden; }
.photo-band img { width: 100%; height: 100%; object-fit: cover; }

/* 四栏入口(购买与服务) */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.entry-col { background: var(--white); border: 1px solid var(--mist); padding: 34px 30px 30px; }
.entry-col .no { font-family: var(--font-latin); font-size: 12px; color: var(--brand); letter-spacing: 0.14em; }
.entry-col h2 { font-size: 24px; font-weight: 700; margin: 10px 0 18px; }
.entry-col ul li { border-top: 1px solid var(--mist); }
.entry-col ul a { display: flex; justify-content: space-between; align-items: center; padding: 11px 2px; font-size: 14px; color: var(--ink-soft); transition: color 0.2s; }
.entry-col ul a::after { content: "→"; font-family: var(--font-latin); color: var(--mist); transition: all 0.2s; }
.entry-col ul a:hover { color: var(--brand); }
.entry-col ul a:hover::after { color: var(--brand); transform: translateX(3px); }
.entry-col .link-more { display: inline-block; margin-top: 18px; }

/* 双卡入口(坐与空间) */
.entry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.entry-card { position: relative; min-height: 460px; overflow: hidden; display: flex; align-items: flex-end; border: 1px solid var(--mist); background: var(--ink); color: var(--white); }
.entry-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.82; transition: transform 1s var(--ease); }
.entry-card:hover img { transform: scale(1.03); }
.entry-card::after { content: ""; position: absolute; inset: auto 0 0 0; height: 52%; background: linear-gradient(to top, rgba(5,6,8,0.74), transparent); }
.entry-card .body { position: relative; z-index: 1; padding: 30px; }
.entry-card h2 { font-size: 22px; font-weight: 700; }
.entry-card p { font-size: 13.5px; color: rgba(255,255,255,0.72); margin-top: 8px; max-width: 30em; }
.entry-card .link-more { color: var(--white); display: inline-block; margin-top: 14px; border-bottom: 1px solid rgba(255,255,255,0.4); }
.entry-card .link-more:hover { color: #9db6f5; border-color: #9db6f5; }

/* ---------- 产品中心(左列表 + 右详情,结构沿用现站) ---------- */
.explorer { display: grid; grid-template-columns: 280px 1fr; gap: 18px; align-items: start; }
.explorer-side { position: sticky; top: 84px; background: var(--white); border: 1px solid var(--mist); max-height: calc(100vh - 108px); overflow: auto; scrollbar-width: thin; scrollbar-color: var(--mist) transparent; }
.explorer-side .side-head { padding: 24px 24px 14px; border-bottom: 1px solid var(--mist); }
.explorer-side .side-head h2 { font-size: 20px; font-weight: 700; margin-top: 8px; }
.side-cat { padding: 14px 24px 4px; display: flex; justify-content: space-between; align-items: baseline; }
.side-cat h3 { font-size: 12.5px; color: var(--steel); font-weight: 500; letter-spacing: 0.06em; }
.side-cat .num { font-size: 11px; color: var(--steel); }
.side-item { display: block; width: 100%; text-align: left; background: none; border: none; cursor: pointer; font-size: 14px; padding: 9px 24px; color: var(--ink-soft); border-left: 2px solid transparent; transition: all 0.18s; }
.side-item:hover { color: var(--brand); }
.side-item.on { border-left-color: var(--brand); color: var(--ink); font-weight: 600; background: var(--paper); }
.explorer-main { display: grid; gap: 18px; }
.pd-hero { display: grid; grid-template-columns: 7fr 5fr; gap: 18px; }
.pd-media { background: var(--white); border: 1px solid var(--mist); display: flex; align-items: center; justify-content: center; padding: clamp(24px, 3.5vw, 56px); min-height: 420px; }
.pd-media img { max-height: 480px; width: auto; max-width: 100%; object-fit: contain; }
.pd-info { background: var(--white); border: 1px solid var(--mist); padding: clamp(28px, 3vw, 44px); display: flex; flex-direction: column; }
.pd-info h1 { font-size: clamp(30px, 3vw, 44px); font-weight: 700; line-height: 1.15; margin-top: 14px; }
.pd-info .tagline { color: var(--steel); margin-top: 10px; font-size: 15px; }
.pd-info .btn { margin-top: auto; align-self: flex-start; }
.pd-card { background: var(--white); border: 1px solid var(--mist); padding: clamp(28px, 3.5vw, 48px); }
.pd-card h2 { font-size: clamp(20px, 2.2vw, 28px); font-weight: 700; margin-top: 12px; line-height: 1.4; }
.pd-card .desc { color: var(--steel); font-size: 14.5px; margin-top: 12px; max-width: 40em; }
.pd-specs { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--mist); margin-top: 26px; }
.pd-specs > div { padding: 18px 20px; border-right: 1px solid var(--mist); }
.pd-specs > div:last-child { border-right: none; }
.pd-specs .k { font-size: 12.5px; color: var(--steel); }
.pd-specs .v { font-family: var(--font-latin); font-size: 19px; font-weight: 500; margin-top: 4px; }
.variant-head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; flex-wrap: wrap; }
.variant-note { font-size: 12px; color: var(--steel); }
.variants { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.variant { width: 168px; border: 1px solid var(--mist); background: var(--paper); padding: 14px; transition: border-color 0.2s; }
.variant:hover { border-color: var(--ink); }
.variant img { height: 120px; width: 100%; object-fit: contain; }
.variant p { font-size: 12.5px; color: var(--steel); margin-top: 10px; }

/* ---------- 新闻 ---------- */
.filters { display: flex; gap: 24px; border-bottom: 1px solid var(--mist); flex-wrap: wrap; }
.filters button { background: none; border: none; font-size: 14.5px; color: var(--steel); padding: 10px 2px 12px; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all 0.2s; }
.filters button.on { color: var(--ink); border-bottom-color: var(--brand); }
.news-list { margin-top: 6px; }
.news-item { display: grid; grid-template-columns: 110px 130px 1fr auto; gap: 20px; align-items: baseline; padding: 26px 0; border-bottom: 1px solid var(--mist); }
.news-item time { font-family: var(--font-latin); font-size: 13.5px; color: var(--steel); }
.news-item .cat { font-size: 12.5px; color: var(--brand); }
.news-item h2 { font-size: clamp(16px, 1.6vw, 20px); font-weight: 600; line-height: 1.5; }
.news-item .go { font-family: var(--font-latin); color: var(--steel); transition: all 0.2s; }
.news-item:hover .go { color: var(--brand); transform: translate(2px, -2px); }
.news-note { font-size: 12.5px; color: var(--steel); margin-top: 20px; }

/* ---------- 投资者 ---------- */
.ticker-band { background: var(--ink); color: var(--white); padding: clamp(48px, 6vw, 80px) 0; }
.ticker-inner { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; }
.ticker-inner .code { font-family: var(--font-latin); font-size: clamp(48px, 7vw, 96px); font-weight: 500; letter-spacing: 0.04em; text-align: center; }
.ticker-inner .l { color: rgba(255,255,255,0.5); font-size: 12px; letter-spacing: 0.2em; font-family: var(--font-latin); text-transform: uppercase; }
.ticker-inner .r { text-align: right; color: rgba(255,255,255,0.7); font-size: 14px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.notice { font-size: 12.5px; color: var(--steel); border: 1px solid var(--mist); background: var(--white); padding: 18px 24px; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-card { background: var(--white); border: 1px solid var(--mist); padding: 30px 28px; }
.contact-card h3 { font-size: 19px; font-weight: 700; margin-top: 12px; }
.contact-card .row { margin-top: 16px; font-size: 14.5px; }
.contact-card .row span { display: block; font-size: 12px; color: var(--steel); }
.contact-card .row a { font-family: var(--font-latin); color: var(--ink); }
.contact-card .row a:hover { color: var(--brand); }
.form-card { margin-top: 16px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; margin-top: 26px; }
.field label { display: block; font-size: 13px; color: var(--steel); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; border: 1px solid var(--mist); background: var(--paper); padding: 12px 14px;
  font-size: 14.5px; font-family: inherit; transition: border-color 0.2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--brand); background: var(--white); }
.field.full { grid-column: 1 / -1; }
.consent { grid-column: 1 / -1; display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--steel); }
.consent input { margin-top: 4px; accent-color: var(--brand); }
.form-actions { grid-column: 1 / -1; }

/* ---------- 页脚(栏目与现站一致) ---------- */
.footer { background: #0a0c0e; color: rgba(255,255,255,0.78); padding: 64px 0 32px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 28px; }
.footer h4 { font-size: 13px; letter-spacing: 0.08em; color: rgba(255,255,255,0.45); font-weight: 500; margin-bottom: 14px; }
.footer ul { display: grid; gap: 9px; }
.footer ul a { font-size: 13.5px; color: rgba(255,255,255,0.75); }
.footer ul a:hover { color: var(--white); }
.footer-side { display: grid; grid-template-columns: 1fr 1fr auto; gap: 14px; margin-top: 44px; }
.foot-card { border: 1px solid rgba(255,255,255,0.14); padding: 18px 22px; }
.foot-card span { display: block; font-size: 12px; color: rgba(255,255,255,0.45); }
.foot-card a { font-family: var(--font-latin); font-size: 17px; }
.foot-card a:hover { color: var(--white); }
.qr-card { border: 1px solid rgba(255,255,255,0.14); padding: 14px 22px; display: flex; align-items: center; gap: 16px; }
.qr-ph { width: 64px; height: 64px; border: 1px solid rgba(255,255,255,0.3); display: grid; place-items: center; font-family: var(--font-latin); font-size: 10px; letter-spacing: 0.12em; color: rgba(255,255,255,0.5); }
.qr-card p { font-size: 12.5px; color: rgba(255,255,255,0.6); line-height: 1.6; }
.footer .legal { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px; padding-top: 22px; font-size: 12.5px; color: rgba(255,255,255,0.35); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer .legal a:hover { color: rgba(255,255,255,0.7); }

/* ---------- 动效 / 原型说明 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.proto-toggle { position: fixed; right: 20px; bottom: 20px; z-index: 60; background: var(--brand); color: var(--white); border: none; border-radius: 999px; padding: 11px 20px; font-size: 13.5px; cursor: pointer; box-shadow: 0 8px 28px rgba(15,63,182,0.35); }
.proto-panel { position: fixed; right: 20px; bottom: 72px; z-index: 60; width: min(400px, calc(100vw - 40px)); max-height: 66vh; overflow: auto; background: var(--white); border: 1px solid var(--mist); box-shadow: 0 24px 64px rgba(11,13,16,0.18); padding: 26px 26px 22px; display: none; }
.proto-panel.open { display: block; }
.proto-panel h3 { font-size: 15px; margin-bottom: 12px; }
.proto-panel ol { padding-left: 18px; display: grid; gap: 9px; font-size: 13.5px; color: var(--ink-soft); }
.proto-panel li b { color: var(--brand); font-weight: 500; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .frames { transition: none !important; }
  .duo img, .entry-card img { transition: none !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-menu { display: none; }
  .feature-grid, .creds { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .explorer { grid-template-columns: 1fr; }
  .explorer-side { position: static; max-height: none; }
  .pd-hero { grid-template-columns: 1fr; }
  .firsts { grid-template-columns: 1fr; }
  .split-row { grid-template-columns: 1fr; }
  .portal-row { grid-template-columns: 1fr; gap: 12px; }
  .contact-grid { grid-template-columns: 1fr; }
  .ticker-inner { grid-template-columns: 1fr; text-align: center; }
  .ticker-inner .r { text-align: center; }
}
@media (max-width: 640px) {
  .duo, .entry-grid, .grid-4, .grid-2, .form-grid, .footer-side { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 6px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .pd-specs { grid-template-columns: 1fr 1fr; }
  .pd-specs > div { border-bottom: 1px solid var(--mist); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }