/* ============================================================
   鼎元制造 · 企业官网
   极简黑白 + 单色强调（工业橙）
   ============================================================ */

:root {
  /* 中性色阶 */
  --ink: #0b0b0c;
  --ink-2: #1c1c1e;
  --gray-7: #3d3d40;
  --gray-5: #6b6b70;
  --gray-4: #8e8e93;
  --gray-3: #c9c9ce;
  --gray-2: #e4e4e7;
  --gray-1: #f1f1f3;
  --paper: #fbfbfa;
  --white: #ffffff;

  /* 唯一强调色 */
  --accent: #e4551f;
  --accent-dark: #c24413;
  --accent-soft: rgba(228, 85, 31, 0.08);

  /* 版式 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  /* 节奏 */
  --maxw: 1240px;
  --gut: 40px;
  --sec-y: 120px;
  --r: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (max-width: 900px) {
  :root { --gut: 22px; --sec-y: 72px; }
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--accent); color: var(--white); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--white); padding: 12px 20px;
}
.skip-link:focus { left: 0; }

/* ---------- 布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.sec { padding-block: var(--sec-y); }
.sec--tight { padding-block: calc(var(--sec-y) * 0.62); }
.sec--dark { background: var(--ink); color: var(--white); }
.sec--gray { background: var(--gray-1); }

/* ---------- 通用排版 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--gray-5);
  margin-bottom: 24px;
}
.eyebrow::before {
  content: ""; width: 24px; height: 2px; background: var(--accent);
}
.sec--dark .eyebrow { color: var(--gray-3); }
.phero .eyebrow { color: var(--gray-3); }

.h-xl {
  font-size: clamp(40px, 6.4vw, 82px);
  line-height: 1.05; letter-spacing: -0.035em;
}
.h-lg {
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1.15; letter-spacing: -0.03em;
}
.h-md { font-size: clamp(21px, 2.1vw, 27px); line-height: 1.3; letter-spacing: -0.02em; }
.h-sm { font-size: 18px; }

.lede {
  font-size: clamp(16px, 1.35vw, 19px);
  color: var(--gray-7);
  max-width: 62ch;
  line-height: 1.75;
}
.sec--dark .lede { color: var(--gray-3); }

.muted { color: var(--gray-5); }
.small { font-size: 13.5px; line-height: 1.6; }

.rule { height: 1px; background: var(--gray-2); border: 0; margin: 0; }
.sec--dark .rule { background: #26262a; }

/* 区块标题行 */
.sec-head {
  display: flex; flex-wrap: wrap; align-items: flex-end;
  justify-content: space-between; gap: 24px;
  margin-bottom: 64px;
}
.sec-head__t { max-width: 46ch; }
.sec-head .h-lg { margin-top: 0; }

/* ---------- 按钮 ---------- */
.btn {
  --bh: 52px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--bh); padding-inline: 30px;
  border: 1px solid transparent; border-radius: var(--r);
  font-size: 15px; font-weight: 500; letter-spacing: 0.01em;
  cursor: pointer; white-space: nowrap;
  transition: background .28s var(--ease), color .28s var(--ease),
              border-color .28s var(--ease), transform .28s var(--ease);
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: translateY(1px); }

.btn--primary { background: var(--ink); color: var(--white); }
.btn--primary:hover:not(:disabled) { background: var(--accent); }

.btn--accent { background: var(--accent); color: var(--white); }
.btn--accent:hover:not(:disabled) { background: var(--accent-dark); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--gray-3); }
.btn--ghost:hover:not(:disabled) { border-color: var(--ink); background: var(--ink); color: var(--white); }

.sec--dark .btn--ghost { color: var(--white); border-color: #3a3a3f; }
.sec--dark .btn--ghost:hover:not(:disabled) { background: var(--white); color: var(--ink); border-color: var(--white); }

/* 深色 hero / cta 区域里的 ghost 按钮（浅色文字，否则深底上看不见） */
.hero .btn--ghost,
.phero .btn--ghost,
.cta .btn--ghost,
.hero__in .btn--ghost,
.phero__in .btn--ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, .32);
}
.hero .btn--ghost:hover:not(:disabled),
.phero .btn--ghost:hover:not(:disabled),
.cta .btn--ghost:hover:not(:disabled),
.hero__in .btn--ghost:hover:not(:disabled),
.phero__in .btn--ghost:hover:not(:disabled) {
  background: var(--white);
  color: var(--ink);
  border-color: var(--white);
}

.btn--sm { --bh: 40px; padding-inline: 20px; font-size: 14px; }
.btn--block { width: 100%; }

.btn__arrow { transition: transform .28s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* 文字链接 */
.tlink {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14.5px; font-weight: 500;
  padding-bottom: 3px; border-bottom: 1px solid var(--gray-3);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.tlink:hover { color: var(--accent); border-color: var(--accent); }
.sec--dark .tlink { border-color: #3a3a3f; }

/* ---------- 页头 ---------- */
.hdr {
  position: sticky; top: 0; z-index: 90;
  background: rgba(251, 251, 250, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.hdr.is-stuck { border-bottom-color: var(--gray-2); background: rgba(251,251,250,.94); }

.hdr__in {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px; gap: 32px;
}

/* logo */
.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo__mark { width: 26px; height: 26px; flex-shrink: 0; }
.logo__mark rect { fill: var(--ink); }
.logo__mark rect.on { fill: var(--accent); }
.logo__txt { display: flex; flex-direction: column; line-height: 1.05; }
.logo__cn { font-size: 17px; font-weight: 600; letter-spacing: 0.06em; }
.logo__en {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.16em;
  color: var(--gray-4); text-transform: uppercase; margin-top: 2px;
}

/* 主导航 */
.nav { display: flex; align-items: center; gap: 4px; }
.nav__a {
  position: relative; padding: 8px 16px;
  font-size: 15px; color: var(--gray-7);
  transition: color .25s var(--ease);
}
.nav__a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 1.5px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav__a:hover { color: var(--ink); }
.nav__a:hover::after, .nav__a[aria-current="page"]::after { transform: scaleX(1); }
.nav__a[aria-current="page"] { color: var(--ink); font-weight: 500; }

/* AI 工具下拉 */
.navdrop { position: relative; }
.navdrop__btn {
  background: none; border: 0; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
}
.navdrop__btn::after { display: none; }
.navdrop__car {
  font-size: 9px; color: var(--gray-4); transition: transform .25s var(--ease);
  display: inline-block;
}
.navdrop.is-open .navdrop__car { transform: rotate(180deg); }
.navdrop__panel {
  position: absolute; left: 8px; top: calc(100% + 12px);
  min-width: 224px; background: var(--white);
  border: 1px solid var(--gray-2); border-radius: var(--r);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .12);
  padding: 7px; display: none;
}
.navdrop.is-open .navdrop__panel { display: block; animation: dropIn .22s var(--ease); }
@keyframes dropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}
.navdrop__a {
  display: block; padding: 10px 14px; border-radius: var(--r);
  font-size: 14.5px; color: var(--gray-7);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.navdrop__a:hover { background: var(--gray-1); color: var(--ink); }
.navdrop__a[aria-current="page"] { color: var(--accent); font-weight: 500; }

.hdr__act { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* 用户菜单 */
.usermenu { position: relative; }
.usermenu__btn {
  display: flex; align-items: center; gap: 9px;
  height: 40px; padding: 0 8px 0 14px;
  background: var(--gray-1); border: 1px solid transparent; border-radius: 999px;
  cursor: pointer; font-size: 14px;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.usermenu__btn:hover { border-color: var(--gray-3); }
.usermenu__dot {
  width: 24px; height: 24px; border-radius: 999px;
  background: var(--accent); color: var(--white);
  display: grid; place-items: center;
  font-size: 11px; font-weight: 600; flex-shrink: 0;
}
.usermenu__name {
  max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.usermenu__panel {
  position: absolute; right: 0; top: calc(100% + 10px);
  min-width: 210px; background: var(--white);
  border: 1px solid var(--gray-2); border-radius: var(--r);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .12);
  padding: 8px; display: none;
}
.usermenu.is-open .usermenu__panel { display: block; }
.usermenu__hd {
  padding: 10px 12px 12px; border-bottom: 1px solid var(--gray-2); margin-bottom: 6px;
}
.usermenu__mail {
  font-size: 12.5px; color: var(--gray-5); word-break: break-all;
  font-family: var(--font-mono); margin-top: 3px;
}
.usermenu__a {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 9px 12px; border-radius: var(--r);
  background: none; border: 0; cursor: pointer; text-align: left;
  font-size: 14.5px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.usermenu__a:hover { background: var(--gray-1); }
.usermenu__a.is-danger { color: var(--accent); }

/* 汉堡 */
.burger {
  display: none; width: 42px; height: 42px;
  background: none; border: 1px solid var(--gray-2); border-radius: var(--r);
  cursor: pointer; position: relative;
}
.burger span {
  position: absolute; left: 11px; right: 11px; height: 1.5px;
  background: var(--ink); transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 25px; }
.burger.is-open span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 900px) {
  .burger { display: block; }
  .nav {
    position: fixed; inset: 76px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--gray-2);
    padding: 8px var(--gut) 24px;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: transform .3s var(--ease), opacity .25s var(--ease);
    max-height: calc(100dvh - 76px); overflow-y: auto;
  }
  .nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav__a { padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--gray-2); }
  .nav__a::after { display: none; }

  /* 移动端下拉：静态展开，不做悬停浮层 */
  .navdrop { width: 100%; }
  .navdrop__btn {
    width: 100%; padding: 14px 0; font-size: 17px;
    border-bottom: 1px solid var(--gray-2);
    justify-content: space-between;
  }
  .navdrop__panel {
    position: static; display: block; min-width: 0;
    box-shadow: none; border: 0; border-bottom: 1px solid var(--gray-2);
    padding: 4px 0 8px 16px; background: transparent;
  }
  .navdrop__a {
    padding: 11px 0; font-size: 16px; border-bottom: 1px solid var(--gray-1);
  }
  .navdrop__a:last-child { border-bottom: 0; }
  .navdrop__car { display: none; }

  .hdr__act .btn--primary { display: none; }
  .usermenu__name { max-width: 90px; }
}

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--ink); color: var(--white); }
.hero__bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(ellipse 90% 70% at 78% 22%, #000 5%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 78% 22%, #000 5%, transparent 72%);
}
.hero__glow {
  position: absolute; width: 620px; height: 620px; right: -140px; top: -180px;
  background: radial-gradient(circle, rgba(228,85,31,.34), transparent 66%);
  filter: blur(24px);
}
.hero__in {
  position: relative;
  padding-block: clamp(96px, 13vw, 168px) clamp(72px, 9vw, 120px);
}
.hero__tag {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--gray-3); margin-bottom: 32px;
}
.hero__tag i { width: 6px; height: 6px; border-radius: 999px; background: var(--accent); }

.hero__title { max-width: 16ch; }
.hero__title em { font-style: normal; color: var(--accent); }
.hero__lede { margin-top: 28px; max-width: 56ch; color: var(--gray-3); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 44px; }

.hero__stats {
  position: relative;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,.13);
}
.hero__stat { padding: 30px 26px 30px 0; }
.hero__stat + .hero__stat { border-left: 1px solid rgba(255,255,255,.13); padding-left: 26px; }
.hero__stat b {
  display: block; font-size: clamp(26px, 3vw, 38px); font-weight: 600;
  letter-spacing: -0.03em; line-height: 1.1;
}
.hero__stat b i { font-style: normal; font-size: .52em; color: var(--accent); margin-left: 3px; }
.hero__stat span { font-size: 13px; color: var(--gray-4); letter-spacing: .02em; }

@media (max-width: 760px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .hero__stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.13); }
}

/* 页内 hero（子页面） */
.phero { background: var(--ink); color: var(--white); position: relative; overflow: hidden; }
.phero__bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(120deg, transparent 28%, #000 100%);
  -webkit-mask-image: linear-gradient(120deg, transparent 28%, #000 100%);
}
.phero__in { position: relative; padding-block: clamp(72px, 9vw, 116px); }
.phero__title { max-width: 18ch; margin-top: 4px; }
.phero .lede { margin-top: 24px; color: var(--gray-3); }

/* ---------- 数据条 ---------- */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gray-2); }
.metric { background: var(--paper); padding: 40px 30px; }
.sec--dark .metric { background: var(--ink); }
.metric b {
  display: block; font-size: clamp(30px, 3.4vw, 42px); font-weight: 600;
  letter-spacing: -0.035em; line-height: 1.05; margin-bottom: 8px;
}
.metric b i { font-style: normal; font-size: .5em; color: var(--accent); }
.metric span { font-size: 13.5px; color: var(--gray-5); }
.sec--dark .metric span { color: var(--gray-4); }

@media (max-width: 900px) { .metrics { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .metrics { grid-template-columns: 1fr; } }

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 1px; background: var(--gray-2); border: 1px solid var(--gray-2); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper); padding: 40px 34px;
  display: flex; flex-direction: column;
  transition: background .3s var(--ease);
}
.sec--dark .card { background: var(--ink); }
.card:hover { background: var(--white); }
.sec--dark .card:hover { background: var(--ink-2); }

.card__no {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em;
  color: var(--accent); margin-bottom: 22px;
}
.card__t { margin-bottom: 12px; }
.card__d { color: var(--gray-5); font-size: 14.5px; line-height: 1.72; flex: 1; }
.card__more { margin-top: 22px; }

/* 产品卡 */
.pcard { background: var(--paper); display: flex; flex-direction: column; }
.pcard__fig {
  position: relative; aspect-ratio: 4 / 3; overflow: hidden;
  background: var(--gray-1);
}
.pcard__fig img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.pcard:hover .pcard__fig img { transform: scale(1.045); }
.pcard__fig::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0,0,0,.05));
}
.pcard__body { padding: 28px 28px 30px; flex: 1; display: flex; flex-direction: column; }
.pcard__cat {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.pcard__t { margin-bottom: 10px; }
.pcard__d { font-size: 14.5px; color: var(--gray-5); line-height: 1.72; flex: 1; }
.pcard__spec {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--gray-2);
  display: flex; justify-content: space-between; gap: 14px;
  font-size: 13px; color: var(--gray-5);
}
.pcard__spec b { color: var(--ink); font-weight: 500; }

/* 展开的详情区：默认收起，点击卡片标题行可展开 */
.pcard__toggle-row {
  margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--gray-2);
  display: flex; flex-wrap: wrap; align-items: center; gap: 22px;
}
.pcard__toggle {
  background: none; border: 0; border-bottom: 1px solid var(--gray-3);
  cursor: pointer; padding: 0 0 3px;
}
.pcard__toggle:hover { color: var(--accent); border-color: var(--accent); }

.pcard__detail {
  display: none;
  font-size: 14.5px; color: var(--gray-5); line-height: 1.78;
}
.pcard__detail.is-open { display: block; animation: detailIn .4s var(--ease); }
.pcard__detail .rule { margin: 20px 0 18px; }
.pcard__detail-cta { margin-top: 22px; }

@keyframes detailIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.pcard.is-expanded { background: var(--white); }
.pcard.is-expanded .pcard__fig img { transform: scale(1.03); }

/* 特色列表 */
.feat { display: grid; gap: 0; }
.feat__row {
  display: grid; grid-template-columns: 92px 1.15fr 1fr;
  gap: 40px; align-items: start;
  padding: 40px 0; border-top: 1px solid var(--gray-2);
  transition: background .3s var(--ease);
}
.feat__row:last-child { border-bottom: 1px solid var(--gray-2); }
.sec--dark .feat__row { border-color: #26262a; }
.feat__no { font-family: var(--font-mono); font-size: 12px; color: var(--accent); letter-spacing: .12em; padding-top: 6px; }
.feat__t { font-size: clamp(19px, 2vw, 24px); font-weight: 600; letter-spacing: -0.02em; }
.feat__d { color: var(--gray-5); font-size: 14.5px; line-height: 1.75; padding-top: 3px; }
.sec--dark .feat__d { color: var(--gray-4); }
@media (max-width: 860px) {
  .feat__row { grid-template-columns: 1fr; gap: 12px; padding: 30px 0; }
  .feat__no { padding-top: 0; }
}

/* ---------- 时间轴 ---------- */
.tl { position: relative; padding-left: 0; }
.tl__row {
  display: grid; grid-template-columns: 130px 1fr;
  gap: 44px; padding: 34px 0; border-top: 1px solid var(--gray-2);
  position: relative;
}
.tl__row:last-child { border-bottom: 1px solid var(--gray-2); }
.sec--dark .tl__row { border-color: #26262a; }
.tl__y {
  font-family: var(--font-mono); font-size: 24px; font-weight: 600;
  letter-spacing: -0.02em; color: var(--accent); line-height: 1;
}
.tl__t { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.tl__d { color: var(--gray-5); font-size: 14.5px; line-height: 1.75; max-width: 60ch; }
.sec--dark .tl__d { color: var(--gray-4); }
@media (max-width: 700px) {
  .tl__row { grid-template-columns: 1fr; gap: 10px; }
  .tl__y { font-size: 20px; }
}

/* ---------- 图片组 ---------- */
.fig { position: relative; overflow: hidden; background: var(--gray-1); }
.fig img { width: 100%; height: 100%; object-fit: cover; }
.fig--tall { aspect-ratio: 3 / 4; }
.fig--wide { aspect-ratio: 16 / 9; }
.fig--sq { aspect-ratio: 1; }

.fig2 { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
@media (max-width: 860px) { .fig2 { grid-template-columns: 1fr; } }

.figcap {
  margin-top: 14px; font-size: 13px; color: var(--gray-4);
  display: flex; gap: 8px; align-items: baseline;
}
.figcap b { font-family: var(--font-mono); font-size: 11px; color: var(--accent); }

/* 流程步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gray-2); }
.step { background: var(--paper); padding: 34px 26px; position: relative; }
.step b {
  display: block; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .16em; color: var(--accent); margin-bottom: 16px;
}
.step h4 { font-size: 17px; margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--gray-5); line-height: 1.7; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ---------- CTA 横幅 ---------- */
.cta {
  position: relative; overflow: hidden; background: var(--ink); color: var(--white);
  padding-block: clamp(72px, 9vw, 112px);
}
.cta__bg {
  position: absolute; width: 560px; height: 560px; left: -160px; bottom: -240px;
  background: radial-gradient(circle, rgba(228,85,31,.3), transparent 66%);
  filter: blur(20px);
}
.cta__in { position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 40px; }
.cta__t { max-width: 22ch; }
.cta__acts { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- 产品筛选 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 44px; }
.chip {
  padding: 9px 20px; border: 1px solid var(--gray-2); border-radius: 999px;
  background: var(--paper); cursor: pointer;
  font-size: 14px; color: var(--gray-5);
  transition: all .25s var(--ease);
}
.chip:hover { border-color: var(--gray-3); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--white); }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 20px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 620px) { .form__row { grid-template-columns: 1fr; } }

.field { display: grid; gap: 8px; }
.field > label {
  font-size: 13px; font-weight: 500; color: var(--gray-7);
  display: flex; align-items: center; gap: 6px;
}
.field > label .req { color: var(--accent); }
.field__hint { font-size: 12px; color: var(--gray-4); }

.input, .textarea, .select {
  width: 100%; padding: 13px 15px;
  background: var(--white); border: 1px solid var(--gray-2); border-radius: var(--r);
  font: inherit; font-size: 15px; color: var(--ink);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.input::placeholder, .textarea::placeholder { color: var(--gray-4); }
.input:focus, .textarea:focus, .select:focus {
  outline: none; border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.textarea { min-height: 132px; resize: vertical; line-height: 1.65; }
.select { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238e8e93' stroke-width='1.4' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 15px center; padding-right: 38px;
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--accent); }

.field__err { font-size: 12.5px; color: var(--accent); min-height: 0; }

/* 拖拽上传 */
.drop {
  border: 1px dashed var(--gray-3); border-radius: var(--r);
  padding: 26px; text-align: center; cursor: pointer;
  background: var(--white);
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.drop:hover, .drop.is-over { border-color: var(--accent); background: var(--accent-soft); }
.drop.is-full { border-style: solid; border-color: var(--gray-2); }
.drop__i { font-size: 22px; color: var(--gray-4); margin-bottom: 8px; }
.drop__t { font-size: 14px; color: var(--gray-5); }
.drop input { display: none; }

.filechip {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px; background: var(--gray-1); border-radius: var(--r);
  font-size: 13.5px;
}
.filechip__n {
  flex: 1; min-width: 0; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.filechip__s { color: var(--gray-4); font-size: 12px; font-family: var(--font-mono); }
.filechip__x {
  border: 0; background: none; cursor: pointer; color: var(--gray-4);
  font-size: 18px; line-height: 1; padding: 4px; border-radius: var(--r);
}
.filechip__x:hover { color: var(--accent); }

/* 表单消息条 */
.msg {
  display: none; padding: 13px 16px; border-radius: var(--r);
  font-size: 14px; gap: 10px; align-items: flex-start; line-height: 1.6;
}
.msg.is-on { display: flex; }
.msg--ok { background: rgba(28, 122, 74, .09); color: #14663d; border: 1px solid rgba(28,122,74,.2); }
.msg--err { background: rgba(228, 85, 31, .09); color: var(--accent-dark); border: 1px solid rgba(228,85,31,.22); }
.msg--info { background: var(--gray-1); color: var(--gray-7); border: 1px solid var(--gray-2); }
.msg b { font-weight: 600; }

/* ---------- 认证卡 ---------- */
.authcard {
  width: 100%; max-width: 452px; margin-inline: auto;
  background: var(--white); border: 1px solid var(--gray-2);
  padding: 44px 40px 40px;
}
@media (max-width: 520px) { .authcard { padding: 32px 24px; } }
.authcard__t { font-size: 26px; letter-spacing: -0.025em; margin-bottom: 8px; }
.authcard__d { font-size: 14px; color: var(--gray-5); margin-bottom: 30px; }

.tabs { display: flex; gap: 2px; background: var(--gray-1); padding: 3px; margin-bottom: 28px; }
.tab {
  flex: 1; padding: 10px; border: 0; background: none; cursor: pointer;
  font-size: 14.5px; color: var(--gray-5); border-radius: var(--r);
  transition: background .25s var(--ease), color .25s var(--ease);
}
.tab[aria-selected="true"] { background: var(--white); color: var(--ink); font-weight: 500; box-shadow: 0 1px 3px rgba(0,0,0,.06); }

.divider {
  display: flex; align-items: center; gap: 14px; margin: 26px 0;
  color: var(--gray-4); font-size: 12px;
}
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--gray-2); }

.wxbtn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; height: 50px;
  background: #07c160; color: var(--white); border: 0; border-radius: var(--r);
  cursor: pointer; font-size: 15px; font-weight: 500;
  transition: filter .25s var(--ease);
}
.wxbtn:hover:not(:disabled) { filter: brightness(.94); }
.wxbtn:disabled { opacity: .55; cursor: not-allowed; }

.code-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: start; }
.code-row .btn { white-space: nowrap; }

/* ---------- 账户面板 ---------- */
.acct { display: grid; grid-template-columns: 250px 1fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .acct { grid-template-columns: 1fr; gap: 36px; } }

.acct__side { position: sticky; top: 104px; }
@media (max-width: 900px) { .acct__side { position: static; } }

.acct__id {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 20px; background: var(--white);
  border: 1px solid var(--gray-2); margin-bottom: 18px;
}
.acct__av {
  width: 46px; height: 46px; border-radius: 999px; flex-shrink: 0;
  background: var(--accent); color: var(--white);
  display: grid; place-items: center; font-size: 17px; font-weight: 600;
}
.acct__nm { font-weight: 600; font-size: 15px; }
.acct__ml {
  font-size: 12px; color: var(--gray-4); font-family: var(--font-mono);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 168px;
}

.acct__nav { display: grid; gap: 1px; background: var(--gray-2); border: 1px solid var(--gray-2); }
.acct__nav button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 13px 16px; background: var(--paper); border: 0; cursor: pointer;
  font-size: 14.5px; text-align: left; color: var(--gray-7);
  transition: background .25s var(--ease), color .25s var(--ease);
}
.acct__nav button:hover { background: var(--white); color: var(--ink); }
.acct__nav button[aria-selected="true"] {
  background: var(--ink); color: var(--white); font-weight: 500;
}
.acct__nav .count {
  margin-left: auto; font-family: var(--font-mono); font-size: 11px;
  color: var(--gray-4);
}
.acct__nav button[aria-selected="true"] .count { color: var(--gray-3); }

/* 记录条目 */
.rec {
  display: grid; grid-template-columns: 1fr auto; gap: 12px 20px;
  padding: 24px 26px; background: var(--white);
  border: 1px solid var(--gray-2);
  transition: border-color .25s var(--ease);
}
.rec:hover { border-color: var(--gray-3); }
.rec + .rec { margin-top: 12px; }
.rec__t { font-size: 16px; font-weight: 500; }
.rec__m {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--gray-4);
  margin-top: 5px; display: flex; flex-wrap: wrap; gap: 5px 14px;
}
.rec__body {
  grid-column: 1 / -1; margin-top: 10px; padding-top: 16px;
  border-top: 1px solid var(--gray-1);
  font-size: 14.5px; color: var(--gray-7); line-height: 1.7;
  white-space: pre-wrap; word-break: break-word;
}

.tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 11px; border-radius: 999px;
  font-size: 12px; font-weight: 500; white-space: nowrap;
}
.tag--pending { background: rgba(214, 158, 46, .13); color: #8a6412; }
.tag--done { background: rgba(28, 122, 74, .11); color: #14663d; }
.tag--reply { background: var(--gray-1); color: var(--gray-7); }

.rec__act { display: flex; gap: 14px; grid-column: 1 / -1; margin-top: 12px; }
.iconbtn {
  border: 0; background: none; cursor: pointer; padding: 4px 0;
  font-size: 13px; color: var(--gray-5);
  display: inline-flex; align-items: center; gap: 6px;
  transition: color .2s var(--ease);
}
.iconbtn:hover { color: var(--accent); }
.iconbtn.is-danger:hover { color: #b3261e; }

/* 空状态 */
.empty {
  padding: 64px 30px; text-align: center;
  border: 1px dashed var(--gray-3); background: var(--white);
}
.empty__i { font-size: 30px; color: var(--gray-3); margin-bottom: 14px; }
.empty__t { font-size: 16px; margin-bottom: 8px; }
.empty__d { font-size: 14px; color: var(--gray-5); margin-bottom: 22px; }

/* 骨架屏 */
.skel { background: var(--gray-1); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 68px; align-items: start; }
@media (max-width: 940px) { .contact-grid { grid-template-columns: 1fr; gap: 44px; } }

.cinfo { display: grid; gap: 0; }
.cinfo__row { padding: 24px 0; border-top: 1px solid var(--gray-2); display: grid; gap: 7px; }
.cinfo__row:last-child { border-bottom: 1px solid var(--gray-2); }
.cinfo__k {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .15em;
  text-transform: uppercase; color: var(--gray-4);
}
.cinfo__v { font-size: 16px; line-height: 1.6; }
.cinfo__v a:hover { color: var(--accent); }
.cinfo__sm { font-size: 13px; color: var(--gray-4); font-family: var(--font-mono); }

.map {
  aspect-ratio: 16 / 9; background: var(--gray-1); position: relative;
  display: grid; place-items: center; overflow: hidden;
}
.map__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.045) 1px, transparent 1px);
  background-size: 42px 42px;
}
.map__pin { position: relative; text-align: center; }
.map__pin b {
  display: grid; place-items: center; width: 40px; height: 40px; margin: 0 auto 10px;
  background: var(--accent); color: var(--white); border-radius: 999px;
  font-size: 17px; box-shadow: 0 6px 18px rgba(228,85,31,.34);
}
.map__pin span { font-size: 13px; color: var(--gray-5); }

/* ---------- 页脚 ---------- */
.ftr { background: var(--ink); color: var(--gray-4); padding-block: 72px 34px; }
.ftr__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr; gap: 44px; }
@media (max-width: 1040px) { .ftr__top { grid-template-columns: 1fr 1fr; gap: 40px; } }
@media (max-width: 560px) { .ftr__top { grid-template-columns: 1fr; } }
.ftr__brand .logo__cn { color: var(--white); }
.ftr__brand .logo__en { color: var(--gray-4); }
.ftr__mark rect { fill: var(--white); }
.ftr__mark rect.on { fill: var(--accent); }
.ftr__d { font-size: 13.5px; line-height: 1.75; margin-top: 18px; max-width: 34ch; }

.ftr__t {
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--white); margin-bottom: 18px; font-weight: 500;
}
.ftr__links { display: grid; gap: 11px; }
.ftr__links a { font-size: 14px; transition: color .2s var(--ease); }
.ftr__links a:hover { color: var(--accent); }

.ftr__ct { display: grid; gap: 5px; }
.ftr__ct b { font-size: 20px; color: var(--white); font-weight: 600; letter-spacing: -0.01em; }
.ftr__ct span { font-size: 13px; }

.ftr__bot {
  margin-top: 56px; padding-top: 26px; border-top: 1px solid #26262a;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px;
  font-size: 12.5px; color: var(--gray-4);
}
.ftr__bot a:hover { color: var(--gray-3); }
.ftr__icp { font-family: var(--font-mono); }

/* ---------- 动效 ---------- */
[data-rise] { opacity: 0; transform: translateY(22px); }
[data-rise].is-in {
  opacity: 1; transform: none;
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-rise] { opacity: 1; transform: none; }
}

/* ---------- 工具 ---------- */
.mt-s { margin-top: 16px; }
.mt-m { margin-top: 28px; }
.mt-l { margin-top: 44px; }
.mt-xl { margin-top: 68px; }
.mb-s { margin-bottom: 16px; }
.mb-m { margin-bottom: 28px; }
.mb-l { margin-bottom: 44px; }
.tc { text-align: center; }
.mxa { margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
[hidden] { display: none !important; }

/* 打印 */
@media print {
  .hdr, .ftr, .cta, .drop, .btn { display: none !important; }
  body { background: #fff; }
}
/* ============================================================
   产品管理后台
   ============================================================ */

.admin { padding-block: calc(var(--sec-y) * .7); }

/* 管理员身份横幅 */
.admbanner {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 16px 20px; margin-bottom: 28px;
  background: var(--accent-soft); border: 1px solid rgba(228, 85, 31, .22);
}
.admbanner__i {
  width: 32px; height: 32px; flex-shrink: 0; border-radius: 999px;
  background: var(--accent); color: var(--white);
  display: grid; place-items: center; font-size: 15px;
}
.admbanner__t { font-size: 14.5px; }
.admbanner__t b { font-weight: 600; }

/* 无权限提示 */
.noperm { max-width: 560px; margin-inline: auto; text-align: center; }
.noperm__i {
  width: 60px; height: 60px; margin: 0 auto 22px; border-radius: 999px;
  background: var(--gray-1); color: var(--gray-4);
  display: grid; place-items: center; font-size: 26px;
}
.noperm__t { font-size: 20px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 10px; }
.noperm__d { font-size: 14.5px; color: var(--gray-5); line-height: 1.75; margin-bottom: 26px; }
.noperm__code {
  display: inline-block; margin: 4px 0; padding: 3px 10px;
  background: var(--gray-1); border-radius: var(--r);
  font-family: var(--font-mono); font-size: 12.5px; color: var(--gray-7);
}

/* 工具条 */
.admbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; margin-bottom: 22px;
}
.admbar__l { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.admbar__n { font-size: 14px; color: var(--gray-5); }
.admbar__n b { font-family: var(--font-mono); color: var(--ink); font-weight: 600; }

.searchbox { position: relative; width: min(300px, 100%); }
.searchbox input {
  width: 100%; height: 42px; padding: 0 14px 0 38px;
  background: var(--white); border: 1px solid var(--gray-2); border-radius: var(--r);
  font: inherit; font-size: 14.5px;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.searchbox input:focus {
  outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px var(--accent-soft);
}
.searchbox svg {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  color: var(--gray-4); pointer-events: none;
}

/* 后台产品行 */
.prow {
  display: grid; grid-template-columns: 118px 1fr auto;
  gap: 22px; align-items: center;
  padding: 20px; background: var(--white);
  border: 1px solid var(--gray-2);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.prow:hover { border-color: var(--gray-3); box-shadow: 0 6px 20px rgba(0,0,0,.05); }
.prow + .prow { margin-top: 12px; }

.prow__fig {
  width: 118px; aspect-ratio: 4/3; background: var(--gray-1);
  overflow: hidden; border: 1px solid var(--gray-2);
}
.prow__fig img { width: 100%; height: 100%; object-fit: cover; }

.prow__cat {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 7px;
}
.prow__t { font-size: 17px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 6px; }
.prow__s {
  font-size: 13.5px; color: var(--gray-5); line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.prow__meta {
  margin-top: 9px; display: flex; flex-wrap: wrap; gap: 5px 14px;
  font-family: var(--font-mono); font-size: 11px; color: var(--gray-4);
}
.prow__acts { display: flex; flex-direction: column; gap: 8px; }
.prow__order {
  display: flex; align-items: center; gap: 4px;
  font-family: var(--font-mono); font-size: 11px; color: var(--gray-4);
}
.prow__order button {
  width: 24px; height: 24px; border: 1px solid var(--gray-2);
  background: var(--white); cursor: pointer; border-radius: var(--r);
  display: grid; place-items: center; color: var(--gray-5); font-size: 11px;
  transition: all .2s var(--ease);
}
.prow__order button:hover:not(:disabled) { border-color: var(--ink); color: var(--ink); }
.prow__order button:disabled { opacity: .3; cursor: not-allowed; }

@media (max-width: 760px) {
  .prow { grid-template-columns: 80px 1fr; gap: 16px; }
  .prow__fig { width: 80px; }
  .prow__acts { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; }
}

/* 图片上传预览 */
.imgpick { display: grid; gap: 12px; }
.imgpick__prev {
  width: 100%; max-width: 320px; aspect-ratio: 4/3;
  background: var(--gray-1); border: 1px solid var(--gray-2);
  overflow: hidden; display: grid; place-items: center;
  color: var(--gray-4); font-size: 13px; text-align: center; padding: 16px;
}
.imgpick__prev img { width: 100%; height: 100%; object-fit: cover; }
.imgpick__row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* 预览图库选择器（复用内置SVG 图示） */
.figlib { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.figlib button {
  aspect-ratio: 4/3; padding: 0; overflow: hidden; cursor: pointer;
  border: 2px solid transparent; background: var(--gray-1);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.figlib button:hover { transform: translateY(-2px); }
.figlib button[aria-pressed="true"] { border-color: var(--accent); }
.figlib img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 560px) { .figlib { grid-template-columns: repeat(3, 1fr); } }

/* 弹层 */
.modal {
  position: fixed; inset: 0; z-index: 120;
  background: rgba(11, 11, 12, .55);
  backdrop-filter: blur(3px);
  display: none; align-items: flex-start; justify-content: center;
  padding: 40px 20px; overflow-y: auto;
}
.modal.is-on { display: flex; }
.modal__box {
  width: 100%; max-width: 680px;
  background: var(--paper); border: 1px solid var(--gray-2);
  animation: modalIn .35s var(--ease);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.modal__hd {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 24px 30px; border-bottom: 1px solid var(--gray-2);
}
.modal__ft {
  display: flex; justify-content: flex-end; gap: 12px; flex-wrap: wrap;
  padding: 20px 30px; border-top: 1px solid var(--gray-2); background: var(--white);
}
.modal__body { padding: 30px; }
.modal__x {
  width: 34px; height: 34px; border: 1px solid var(--gray-2); background: none;
  cursor: pointer; border-radius: var(--r); color: var(--gray-5); font-size: 19px;
  display: grid; place-items: center; flex-shrink: 0;
  transition: all .2s var(--ease);
}
.modal__x:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }

/* 段落标题 */
.fgrp { margin-bottom: 22px; }
.fgrp__t {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--gray-4);
  padding-bottom: 10px; margin-bottom: 16px; border-bottom: 1px solid var(--gray-2);
}

/* 状态点 */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 11px; border-radius: 999px; font-size: 12px;
}
.pill--live { background: rgba(28,122,74,.11); color: #14663d; }
.pill--draft { background: rgba(214,158,46,.13); color: #8a6412; }
.pill i { width: 5px; height: 5px; border-radius: 999px; background: currentColor; }

/* 账户侧栏里的后台入口链接 */
.acct__navlink {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 16px; background: var(--paper);
  border-top: 1px solid var(--gray-2);
  font-size: 14.5px; color: var(--accent);
  transition: background .25s var(--ease);
}
.acct__navlink:hover { background: var(--white); color: var(--accent-dark); }

/* ============================================================
   内容管理（CMS）后台
   ============================================================ */

/* 分组导航 */
.cmstabnav { display: grid; gap: 1px; background: var(--gray-2); border: 1px solid var(--gray-2); }
.cmstabnav button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 12px 16px; background: var(--paper); border: 0; cursor: pointer;
  font-size: 14.5px; text-align: left; color: var(--gray-7);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.cmstabnav button:hover { background: var(--white); color: var(--ink); }
.cmstabnav button[aria-selected="true"] { background: var(--ink); color: var(--white); font-weight: 500; }
.cmstabnav .n { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: var(--gray-4); }
.cmstabnav button[aria-selected="true"] .n { color: var(--gray-3); }

/* 内容编辑区 */
.cmsgroup { margin-bottom: 34px; }
.cmsgroup__hd {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  padding-bottom: 12px; margin-bottom: 20px; border-bottom: 2px solid var(--ink);
}
.cmsgroup__t { font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.cmsgroup__n { font-family: var(--font-mono); font-size: 11.5px; color: var(--gray-4); }

.cmsrow {
  display: grid; grid-template-columns: 190px 1fr; gap: 20px;
  align-items: start; padding: 16px 0;
  border-bottom: 1px solid var(--gray-1);
}
.cmsrow:last-child { border-bottom: 0; }
@media (max-width: 720px) { .cmsrow { grid-template-columns: 1fr; gap: 8px; } }

.cmsrow__l { padding-top: 8px; }
.cmsrow__name { font-size: 13.5px; font-weight: 500; color: var(--gray-7); }
.cmsrow__key {
  display: block; margin-top: 3px;
  font-family: var(--font-mono); font-size: 10.5px; color: var(--gray-4);
  word-break: break-all;
}
.cmsrow__i { flex: 1; min-width: 0; display: grid; gap: 6px; }
.cmsrow__i .textarea { min-height: 84px; }
.cmsrow__i .input { font-size: 14.5px; }
.cmsrow__dirty::after {
  content: "已修改"; margin-left: 8px; font-size: 11px;
  color: var(--accent); font-family: var(--font-sans);
}

/* 快捷格式提示 */
.fmt {
  display: flex; flex-wrap: wrap; gap: 6px 14px;
  padding: 11px 15px; background: var(--gray-1);
  font-size: 12.5px; color: var(--gray-5); margin-bottom: 18px;
  border-left: 2px solid var(--accent);
}
.fmt code {
  font-family: var(--font-mono); font-size: 11.5px;
  background: var(--white); padding: 2px 6px; color: var(--gray-7);
}

/* 底部固定操作条 */
.cmssave {
  position: sticky; bottom: 0; z-index: 60;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-top: 28px; padding: 16px 22px;
  background: var(--white); border: 1px solid var(--gray-2);
  box-shadow: 0 -6px 24px rgba(0,0,0,.07);
}
.cmssave__st { font-size: 13.5px; color: var(--gray-5); flex: 1; min-width: 160px; }
.cmssave__st b { color: var(--accent); font-family: var(--font-mono); }
.cmssave__acts { display: flex; gap: 10px; }

/* 保存成功闪烁 */
@keyframes savedFlash {
  0% { background: rgba(28,122,74,.16); }
  100% { background: transparent; }
}
.cmssave.is-saved { animation: savedFlash 1.4s var(--ease); }

/* 预览新窗口 */
.previewbox {
  border: 1px solid var(--gray-2); background: var(--gray-1);
  padding: 12px; margin-bottom: 16px;
}
.previewbox iframe { width: 100%; height: 420px; border: 0; background: #fff; }

/* 导出面板 */
.exportbox {
  display: grid; gap: 14px; padding: 24px 26px;
  background: var(--white); border: 1px solid var(--gray-2);
}
.exportrow {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 14px 16px; background: var(--gray-1); border-radius: var(--r);
}
.exportrow__i { flex: 1; min-width: 180px; }
.exportrow__t { font-size: 14.5px; font-weight: 500; }
.exportrow__d { font-size: 12.5px; color: var(--gray-5); margin-top: 3px; }
.exportrow__n {
  font-family: var(--font-mono); font-size: 12px; color: var(--gray-5);
  padding: 3px 10px; background: var(--white); border-radius: 999px;
}

/* ============================================================
   纯色块视觉：所有图示位置改用 CSS 渐变块，零图片请求
   ============================================================ */
.blk { position: relative; overflow: hidden; width: 100%; height: 100%; }
.blk::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(11,11,12,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11,11,12,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .55; pointer-events: none;
}
.blk--a { background: linear-gradient(135deg, #1c1c1e 0%, #0b0b0c 55%, #26262a 100%); }
.blk--b { background: linear-gradient(135deg, #e4551f 0%, #c24413 100%); }
.blk--c { background: linear-gradient(135deg, #3d3d40 0%, #1c1c1e 100%); }
.blk--d { background: linear-gradient(135deg, #f1f1f3 0%, #c9c9ce 100%); }
.blk--e { background: linear-gradient(160deg, #26262a 0%, #0b0b0c 70%, #e4551f 190%); }
.blk--f { background: linear-gradient(135deg, #8e8e93 0%, #3d3d40 100%); }

/* 图示块里的居中标签 */
.blk__t {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .18em;
  text-transform: uppercase; color: rgba(255,255,255,.72);
}
.blk--d .blk__t, .blk--f .blk__t { color: rgba(11,11,12,.42); }

/* ---- 跨站导航项 ---- */
.nav__sep { width: 1px; height: 15px; background: var(--gray-2); margin: 0 2px; }
.nav__a--cta {
  background: var(--accent); color: #fff !important;
  padding: 6px 12px; border-radius: 7px; font-weight: 600;
}
.nav__a--cta:hover { background: var(--accent-dark); }
@media (max-width: 900px) { .nav__sep { display: none; } }

/* ============================================================
   产品详情页（AI 三件套）
   ============================================================ */

/* 顶部合规提示条 —— 每个产品页第一条就讲清楚 */
.pnotice {
  background: var(--ink-soft, #1c1c1e);
  color: var(--gray-3);
  border-bottom: 1px solid #2c2c30;
  font-size: 13.5px;
}
.pnotice__in {
  display: flex; align-items: flex-start; gap: 12px;
  padding-block: 15px;
}
.pnotice__i {
  flex-shrink: 0; width: 20px; height: 20px; border-radius: 999px;
  background: var(--accent); color: #fff;
  display: grid; place-items: center; font-size: 12px; font-weight: 700;
  margin-top: 1px;
}
.pnotice__t { line-height: 1.65; }
.pnotice__t b { color: var(--white); font-weight: 600; }
.pnotice a {
  color: var(--accent); border-bottom: 1px solid rgba(228,85,31,.4);
  padding-bottom: 1px;
}
.pnotice a:hover { border-color: var(--accent); }

/* 产品头图（纯色块） */
.pfig {
  position: relative; aspect-ratio: 21 / 9; overflow: hidden;
  border: 1px solid var(--gray-2);
}
.pfig .blk__t { font-size: 13px; letter-spacing: .22em; }
@media (max-width: 700px) { .pfig { aspect-ratio: 16 / 7; } }

/* 规格表 */
.spectable { border: 1px solid var(--gray-2); background: var(--gray-2); }
.spectable__row {
  display: grid; grid-template-columns: 200px 1fr; gap: 24px;
  padding: 15px 22px; background: var(--paper);
}
.spectable__row + .spectable__row { border-top: 1px solid var(--gray-2); }
.spectable__k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--gray-4); padding-top: 3px;
}
.spectable__v { font-size: 14.5px; color: var(--gray-7); }
@media (max-width: 640px) {
  .spectable__row { grid-template-columns: 1fr; gap: 6px; padding: 14px 18px; }
}

/* 合规提示块 */
.compliance {
  border: 1px solid rgba(228, 85, 31, .28);
  background: var(--accent-soft);
  padding: 30px 32px;
}
.compliance__t {
  display: flex; align-items: center; gap: 11px;
  font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 12px;
}
.compliance__t i {
  width: 22px; height: 22px; border-radius: 999px; flex-shrink: 0;
  background: var(--accent); color: #fff;
  display: grid; place-items: center; font-style: normal;
  font-size: 13px; font-weight: 700;
}
.compliance__d { font-size: 14.5px; color: var(--gray-7); line-height: 1.78; }
.compliance__l { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 10px 22px; }
.compliance__l a {
  font-size: 14px; font-weight: 500; color: var(--accent);
  border-bottom: 1px solid rgba(228,85,31,.4); padding-bottom: 2px;
}
.compliance__l a:hover { border-color: var(--accent); }

/* 要点列表（带勾选标记） */
.notes { display: grid; gap: 14px; }
.notes li {
  display: flex; gap: 13px; align-items: flex-start;
  font-size: 14.5px; color: var(--gray-5); line-height: 1.75;
}
.notes li::before {
  content: ""; flex-shrink: 0; width: 6px; height: 6px; margin-top: 10px;
  background: var(--accent); border-radius: 999px;
}

/* ============================================================
   法律长文页（隐私政策 / 服务条款 / 可接受使用政策 / 退款政策）
   ============================================================ */

.doc { padding-block: clamp(56px, 7vw, 92px); }
.doc__wrap { max-width: 880px; margin-inline: auto; }

.doc__meta {
  display: flex; flex-wrap: wrap; gap: 8px 26px;
  padding-bottom: 26px; margin-bottom: 34px;
  border-bottom: 1px solid var(--gray-2);
  font-family: var(--font-mono); font-size: 12px; color: var(--gray-4);
}
.doc__meta b { color: var(--gray-6, var(--gray-7)); font-weight: 500; }

/* 章节目录 */
.doctoc {
  background: var(--gray-1); border: 1px solid var(--gray-2);
  padding: 24px 26px; margin-bottom: 44px;
}
.doctoc__t {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--gray-4); margin-bottom: 14px;
}
.doctoc ol { counter-reset: toc; display: grid; gap: 9px; }
.doctoc li {
  counter-increment: toc; font-size: 14px; color: var(--gray-7);
  display: flex; gap: 11px; line-height: 1.6;
}
.doctoc li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 11.5px; color: var(--accent);
  flex-shrink: 0; padding-top: 3px;
}
/* 目录项做成锚点链接 */
.doctoc a {
  color: var(--gray-7); transition: color .2s var(--ease);
  border-bottom: 1px solid transparent; padding-bottom: 1px;
}
.doctoc a:hover { color: var(--accent); border-color: var(--accent); }

/* 章节锚点定位：留出吸顶页头的高度 */
.doc h2 { scroll-margin-top: 96px; }

/* 条文 */
.doc h2 {
  font-size: clamp(20px, 2vw, 24px); letter-spacing: -.02em;
  margin: 52px 0 16px; padding-top: 4px;
}
.doc h2:first-of-type { margin-top: 0; }
.doc h3 {
  font-size: 16.5px; font-weight: 600; margin: 30px 0 10px;
}
.doc p {
  font-size: 15px; line-height: 1.82; color: var(--gray-7); margin-bottom: 14px;
}
.doc p strong, .doc li strong { color: var(--ink); font-weight: 600; }
.doc ul, .doc ol { margin: 0 0 18px; padding-left: 0; }
.doc ul li, .doc ol li {
  position: relative; padding-left: 22px; margin-bottom: 9px;
  font-size: 15px; line-height: 1.78; color: var(--gray-7);
}
.doc ul li::before {
  content: ""; position: absolute; left: 3px; top: 12px;
  width: 5px; height: 5px; border-radius: 999px; background: var(--gray-3);
}
.doc ol { counter-reset: n; list-style: none; }
.doc ol li {
  counter-increment: n; padding-left: 34px; position: relative;
}
.doc ol li::before {
  content: counter(n) "."; position: absolute; left: 0; top: 0;
  font-family: var(--font-mono); font-size: 13px; color: var(--accent);
}
.doc a { color: var(--accent); border-bottom: 1px solid rgba(228,85,31,.35); }
.doc a:hover { border-color: var(--accent); }

/* 定义列表式条款（键值对） */
.doc__def { margin-bottom: 18px; }
.doc__def dt {
  font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 5px;
}
.doc__def dd {
  margin: 0; font-size: 15px; line-height: 1.8; color: var(--gray-7);
}

/* 重点提示框 */
.doc__callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 22px 26px; margin: 26px 0;
}
.doc__callout p { margin-bottom: 10px; }
.doc__callout p:last-child { margin-bottom: 0; }
.doc__callout--gray {
  border-left-color: var(--gray-3); background: var(--gray-1);
}

.doc__hr { height: 1px; background: var(--gray-2); margin: 44px 0; border: 0; }

/* 法律页底部的交叉链接 */
.doc__links {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--gray-2); border: 1px solid var(--gray-2);
  margin-top: 52px;
}
@media (max-width: 620px) { .doc__links { grid-template-columns: 1fr; } }
.doc__links a {
  background: var(--paper); padding: 22px 24px;
  transition: background .25s var(--ease);
}
.doc__links a:hover { background: var(--white); }
.doc__links b { display: block; font-size: 15px; margin-bottom: 4px; }
.doc__links span { font-size: 13.5px; color: var(--gray-5); }

/* 页脚的法律链接排版 */
.ftr__legal {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  font-size: 13px; color: var(--gray-4);
}
.ftr__legal a { transition: color .2s var(--ease); }
.ftr__legal a:hover { color: var(--accent); }