/* ============================================================================
   字体：Inter（自托管，不依赖 Google CDN，国内也能正常加载）
   可变字体，一个文件覆盖 400–800 全部字重
   ========================================================================== */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
                 U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
                 U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF,
                 U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ============================================================================
   字体：JetBrains Mono（自托管，用于所有规格数字/尺寸/参数）
   可变字体，一个文件覆盖 100–800 全部字重。设计系统的硬要求。
   ========================================================================== */
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url("../fonts/jbm-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
                 U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url("../fonts/jbm-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
                 U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF,
                 U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ============================================================================
   设计系统
   ----------------------------------------------------------------------------
   想换配色 → 只改下面 :root 里的变量
   想换字体 → 只改 --font
   ========================================================================== */

:root {
  /* ── 字体 ────────────────────────────────────────────────────────────── */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
          "PingFang SC", "Microsoft YaHei", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* ── 墨色阶梯（文字）───────────────────────────────────────────────── */
  --ink:   #0A0E14;   /* 标题 */
  --ink-2: #1E293B;   /* 正文加重 */
  --ink-3: #475569;   /* 正文 */
  --ink-4: #64748B;   /* 次要 */
  --ink-5: #94A3B8;   /* 最弱 */

  /* ── 浅色底 ──────────────────────────────────────────────────────────── */
  --bg:     #FFFFFF;
  --bg-2:   #FAFBFC;
  --bg-3:   #F1F5F9;
  --line:   #E4E8ED;
  --line-2: #EDF0F3;

  /* ── 深色底（墨蓝，不是纯黑：配合 logo 的深蓝）────────────────────── */
  --dark:      #0A1020;
  --dark-2:    #121A2E;
  --dark-3:    #1B2438;
  --dark-line: rgba(255,255,255,.10);
  --dark-text: rgba(255,255,255,.72);
  --dark-text-2: rgba(255,255,255,.50);

  /* ── 主色（钴蓝，2026-09-23 按设计稿从 #1B44A8 换成 #1D4ED8）─────────
     白字对比度 6.3:1，仍通过 WCAG AA（正文）/AAA（大字）。 */
  --accent:      #1D4ED8;
  --accent-2:    #1E40AF;     /* 悬停 */
  --accent-tint: #EEF4FF;
  --accent-line: #C9DAFB;
  --accent-bright: #5B9DF9;   /* 深色底上的可用蓝（暗蓝在深底上看不见）*/

  /* ── 激光青：设计稿里的技术高亮色，只用在深色底和小徽章上 ─────────── */
  --cyan:      #38BDF8;
  --cyan-ink:  #0284C7;       /* 浅色底上的青（够深，能看清） */
  --cyan-tint: #E0F2FE;

  /* ── 功能色 ──────────────────────────────────────────────────────────── */
  --wa:    #25D366;
  --wa-2:  #1DAA52;
  --ok:    #059669;

  /* ── 圆角（设计稿要求「机加工边缘」感，比原来收窄一档）───────────────── */
  --r-sm:   2px;
  --r:      4px;
  --r-lg:   8px;
  --r-full: 999px;

  /* ── 阴影（分层，克制）─────────────────────────────────────────────── */
  --sh-1: 0 1px 2px rgba(10,14,20,.05);
  --sh-2: 0 1px 3px rgba(10,14,20,.06), 0 4px 12px rgba(10,14,20,.05);
  --sh-3: 0 4px 8px rgba(10,14,20,.06), 0 16px 32px rgba(10,14,20,.09);
  --sh-accent: 0 2px 8px rgba(29,78,216,.25);

  /* ── 布局 ────────────────────────────────────────────────────────────── */
  --maxw: 1280px;
  --ease: cubic-bezier(.4, 0, .2, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-3);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

img, svg { max-width: 100%; display: block; }
img { height: auto; }

a { color: var(--accent); text-decoration: none; transition: color .15s var(--ease); }
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.022em;
}
/* 字号取自设计系统：display-xl 56px/800、headline-lg 36px/700、headline-sm 18px/600
   1280 是设计稿画布宽度，用 vw 系数让它在 1280 正好落在目标值，再宽就封顶 */
h1 { font-size: clamp(2.25rem, 4.375vw, 3.5rem); letter-spacing: -.03em; line-height: 1.14; font-weight: 800; }
h2 { font-size: clamp(1.75rem, 2.8125vw, 2.25rem); letter-spacing: -.02em; line-height: 1.22; }
h3 { font-size: 1.125rem; letter-spacing: -.01em; font-weight: 600; }
h4 { font-size: .95rem; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

/* ══ 布局工具 ══════════════════════════════════════════════════════════════ */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* 区块间距对齐设计系统的 space-2xl（4rem）：相邻区块共 128px，原先是 200px */
.section { padding: 64px 0; }
.section--tight { padding: 44px 0; }
.section--alt { background: var(--bg-2); }
.section--dark, .section--navy {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  color: var(--dark-text);
}
.section--dark h2, .section--dark h3,
.section--navy h2, .section--navy h3 { color: #fff; }

/* 深色区加一层辉光，不要一块死板的纯色 */
.section--dark::before, .section--navy::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(760px 340px at 50% -22%, rgba(29,78,216,.17), transparent 72%);
}
.section--dark .wrap, .section--navy .wrap { position: relative; z-index: 1; }

.center { text-align: center; }
.muted { color: var(--ink-4); }
.lead { font-size: 1.125rem; line-height: 1.6; color: var(--ink-3); }
.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

/* 区块眉标 —— 大厂感的关键细节 */
.eyebrow {
  display: block;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section--dark .eyebrow, .section--navy .eyebrow { color: var(--accent); }

.sec-head { max-width: 660px; margin: 0 auto 44px; }
.sec-head--left { margin-left: 0; }
.sec-head p { margin-bottom: 0; }

/* ══ 顶部导航 ══════════════════════════════════════════════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 32px; height: 72px; }

.logo {
  display: flex; align-items: center; gap: 12px;
  font-weight: 700; color: var(--ink);
  font-size: 1rem; letter-spacing: -.025em; white-space: nowrap;
}
.logo:hover { color: var(--ink); }
.logo img { height: 30px; width: auto; flex: none; }
.logo__mark {
  width: 34px; height: 34px; flex: none;
  border-radius: 9px;
  background: var(--ink);
  color: #fff;
  display: grid; place-items: center;
  font-size: .72rem; font-weight: 800; letter-spacing: -.02em;
}

.nav__links { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav__links a {
  color: var(--ink-4); font-size: .92rem; font-weight: 500;
  padding: 8px 14px; border-radius: var(--r-sm);
  transition: .15s var(--ease);
}
.nav__links a:hover { color: var(--ink); background: var(--bg-3); }
.nav__links a[aria-current="page"] { color: var(--ink); font-weight: 600; }

/* 右侧报价按钮 */
.nav__links a.nav__cta {
  background: var(--accent); color: #fff;
  font-weight: 600; padding: 9px 18px;
  margin-left: 10px;
  box-shadow: var(--sh-accent);
}
.nav__links a.nav__cta:hover { background: var(--accent-2); color: #fff; }

.nav__right { display: flex; align-items: center; gap: 12px; }

/* 导航里的常驻 WhatsApp（对齐设计稿） */
.nav__wa {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; flex: none;
  border-radius: var(--r);
  background: var(--wa); color: #fff;
  transition: background .18s var(--ease);
}
.nav__wa:hover { background: var(--wa-2); color: #fff; }
.nav__wa svg { width: 20px; height: 20px; fill: currentColor; }
@media (max-width: 560px) { .nav__wa { display: none; } }

/* 语言下拉（6 种语言平铺放不下，收进菜单） */
.lang { position: relative; }
.lang__btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 0; background: var(--bg-3); cursor: pointer; font: inherit;
  font-size: .78rem; font-weight: 600; color: var(--ink-2);
  padding: 7px 12px; border-radius: var(--r-full);
  transition: .15s var(--ease);
}
.lang__btn:hover { color: var(--ink); }
.lang__chev {
  width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 2.2;
  stroke-linecap: round; stroke-linejoin: round; transition: .15s var(--ease);
}
.lang.is-open .lang__chev { transform: rotate(180deg); }
.lang__menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 70;
  min-width: 168px; margin: 0; padding: 5px; list-style: none;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--sh-2); display: none;
}
.lang.is-open .lang__menu { display: block; }
.lang__menu button {
  display: block; width: 100%; text-align: left;
  border: 0; background: transparent; cursor: pointer; font: inherit;
  font-size: .84rem; color: var(--ink-2);
  padding: 8px 10px; border-radius: var(--r-sm);
}
.lang__menu button:hover { background: var(--bg-2); color: var(--ink); }
.lang__menu button[aria-current="true"] { color: var(--accent); font-weight: 700; }

.nav__toggle {
  display: none; border: 1px solid var(--line); background: #fff;
  border-radius: var(--r-sm); padding: 8px 10px; cursor: pointer;
  color: var(--ink); line-height: 0;
}

/* ══ 按钮 ══════════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: var(--r-sm); cursor: pointer;
  font: inherit; font-size: .94rem; font-weight: 600;
  letter-spacing: -.008em; line-height: 1.2;
  padding: 12px 22px; white-space: nowrap;
  transition: .16s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--accent); color: #fff; box-shadow: var(--sh-accent); }
.btn--primary:hover { background: var(--accent-2); color: #fff; box-shadow: 0 4px 14px rgba(29,78,216,.32); }

.btn--navy { background: var(--ink); color: #fff; }
.btn--navy:hover { background: var(--ink-2); color: #fff; }

.btn--ghost {
  background: transparent; color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}
.btn--ghost:hover { color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink-5); background: #fff; }

.btn--ghost-light {
  background: transparent; color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.28);
}
.btn--ghost-light:hover { color: #fff; background: rgba(255,255,255,.1); box-shadow: inset 0 0 0 1px rgba(255,255,255,.45); }

.btn--wa { background: var(--wa); color: #fff; box-shadow: 0 2px 8px rgba(37,211,102,.28); }
.btn--wa:hover { background: var(--wa-2); color: #fff; }

.btn--lg { padding: 15px 30px; font-size: 1rem; }
.btn--sm { padding: 9px 16px; font-size: .87rem; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }

/* ══ 首屏 ══════════════════════════════════════════════════════════════════ */
.hero {
  position: relative; overflow: hidden;
  background: var(--dark);
  color: #fff;
  padding: 104px 0 92px;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(760px 380px at 82% -12%, rgba(29,78,216,.20), transparent 68%),
    radial-gradient(600px 340px at 8% 108%, rgba(56,130,246,.10), transparent 68%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(900px 460px at 50% 0%, #000 0%, transparent 76%);
          mask-image: radial-gradient(900px 460px at 50% 0%, #000 0%, transparent 76%);
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { color: #fff; max-width: 16ch; margin-bottom: .42em; }
.hero .lead { color: var(--dark-text); max-width: 62ch; font-size: 1.13rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.hero__stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px; margin-top: 60px; padding-top: 36px;
  border-top: 1px solid var(--dark-line);
}
.hero__stat b {
  display: block; font-size: 1.6rem; font-weight: 700;
  color: #fff; letter-spacing: -.035em; line-height: 1.2;
}
.hero__stat span { font-size: .84rem; color: var(--dark-text-2); }

/* ══ 左右错落布局（打破「居中标题 + 卡片网格」的重复）══════════════════════ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.split--text { grid-template-columns: 1.12fr .88fr; }
.split--media { grid-template-columns: .88fr 1.12fr; }

.split__media { display: grid; place-items: center; }
.split__media img { width: 100%; max-width: 480px; height: auto; }

/* 图示底板，让线条图在浅色区也能立住 */
.blueprint {
  width: 100%;
  padding: 34px 30px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.blueprint img { width: 100%; height: auto; }

@media (max-width: 900px) {
  .split, .split--text, .split--media {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .split__media { order: -1; }
}

/* ══ 特性清单 ══════════════════════════════════════════════════════════════ */
.feature-list {
  list-style: none; padding: 0; margin: 36px 0 0;
  display: grid; gap: 28px;
}
.feature-list li { display: flex; gap: 16px; align-items: flex-start; }
.feature-list .card__icon {
  margin-bottom: 0; width: 40px; height: 40px; border-radius: 10px;
}
.feature-list .card__icon svg { width: 19px; height: 19px; }
.feature-list h3 { font-size: 1rem; margin-bottom: .28em; }
.feature-list p {
  font-size: .9rem; color: var(--ink-4);
  margin: 0; line-height: 1.6;
}

/* ══ 卡片 ══════════════════════════════════════════════════════════════════ */
.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(288px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: .2s var(--ease);
  height: 100%;
}
.card:hover {
  border-color: var(--line-2);
  box-shadow: var(--sh-2);
  transform: translateY(-2px);
}
.card h3 { margin-bottom: .45em; }
.card > p:last-child { margin-bottom: 0; }

.card__icon {
  width: 44px; height: 44px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--accent-tint); color: var(--accent);
  margin-bottom: 18px;
}
.card__icon svg { width: 21px; height: 21px; }

.card--flat { background: var(--bg-2); border-color: transparent; }
.card--flat:hover { background: #fff; border-color: var(--line); }

.card--accent {
  background: var(--accent-tint);
  border-color: var(--accent-line);
}
.card--accent:hover { border-color: var(--accent); }

/* 卡片顶部的图示区 */
.card__media {
  margin: -28px -28px 22px;
  padding: 26px 28px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line-2);
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  display: grid;
  place-items: center;
}
.card__media img { width: 100%; max-width: 230px; height: auto; }
.card--flat .card__media { background: #fff; }
.card--flat:hover .card__media { background: var(--bg-2); }

/* ══ 滚动入场动画 ══════════════════════════════════════════════════════════ */
.reveal, .sec-head {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}
.reveal.is-in, .sec-head.is-in { opacity: 1; transform: none; }

/* 同一组里依次出现，别一起蹦出来 */
.reveal[data-delay="1"] { transition-delay: .07s; }
.reveal[data-delay="2"] { transition-delay: .14s; }
.reveal[data-delay="3"] { transition-delay: .21s; }
.reveal[data-delay="4"] { transition-delay: .28s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .sec-head { opacity: 1; transform: none; transition: none; }
}

/* ══ 图标 ══════════════════════════════════════════════════════════════════ */
.icon { width: 20px; height: 20px; stroke: currentColor; fill: none;
        stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.icon--sm { width: 16px; height: 16px; }

/* ══ 报价计算器 ════════════════════════════════════════════════════════════ */
.calc { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; align-items: start; }

.field { margin-bottom: 26px; }
.field > label, .field__label {
  display: block; font-size: .87rem; font-weight: 600;
  color: var(--ink-2); margin-bottom: 9px; letter-spacing: -.008em;
}
.field__hint { font-size: .8rem; color: var(--ink-5); font-weight: 400; }

select, input[type="text"], input[type="number"], input[type="email"], textarea {
  width: 100%; font: inherit; font-size: .95rem; color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 11px 13px;
  transition: .15s var(--ease);
  -webkit-appearance: none; appearance: none;
}
select {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 38px;
}
select:hover, input:hover, textarea:hover { border-color: var(--ink-5); }
select:focus, input:focus, textarea:focus {
  outline: 0; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29,78,216,.12);
}
textarea { resize: vertical; min-height: 100px; }

/* 单选卡片 */
.opts { display: grid; gap: 10px; }
.opts--2 { grid-template-columns: repeat(auto-fit, minmax(196px, 1fr)); }
.opts--3 { grid-template-columns: repeat(auto-fit, minmax(152px, 1fr)); }
.opts--4 { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }

.opt { position: relative; }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt > label {
  display: flex; flex-direction: column; justify-content: center;
  cursor: pointer; text-align: center;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: 13px 10px; min-height: 52px;
  transition: .15s var(--ease);
  background: #fff;
  font-size: .89rem; font-weight: 500; color: var(--ink-3);
  line-height: 1.35;
}
.opt > label:hover { border-color: var(--ink-5); color: var(--ink); }
.opt input:checked + label {
  border-color: var(--accent);
  background: var(--accent-tint);
  color: var(--accent-2);
  font-weight: 600;
  box-shadow: 0 0 0 1px var(--accent);
}
.opt input:focus-visible + label { box-shadow: 0 0 0 3px rgba(29,78,216,.3); }
.opt small { display: block; font-size: .73rem; font-weight: 400; opacity: .7; margin-top: 2px; }

/* 报价面板 */
.quote-panel {
  position: sticky; top: 96px;
  background: var(--dark);
  border-radius: var(--r-lg);
  padding: 30px;
  box-shadow: var(--sh-3);
  color: #fff;
}
.quote-panel h3 {
  color: #fff; font-size: .78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .11em;
  margin-bottom: 20px; color: var(--dark-text-2);
}

.quote-row {
  display: flex; justify-content: space-between; gap: 16px;
  font-size: .875rem; padding: 8px 0;
  color: var(--dark-text);
}
.quote-row span:last-child { color: #fff; font-weight: 500; white-space: nowrap; font-variant-numeric: tabular-nums; }

.quote-total {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: 18px; padding-top: 20px;
  border-top: 1px solid var(--dark-line);
}
.quote-total span { font-size: .875rem; color: var(--dark-text); }
.quote-total b {
  font-size: 2.15rem; font-weight: 700; letter-spacing: -.04em;
  color: #fff; font-variant-numeric: tabular-nums;
}
.quote-unit {
  font-size: .82rem; color: var(--dark-text-2);
  margin-top: 8px; font-variant-numeric: tabular-nums;
}
.quote-note {
  background: rgba(255,255,255,.06);
  border-radius: var(--r-sm);
  padding: 13px 15px; font-size: .79rem; line-height: 1.6;
  color: var(--dark-text-2); margin-top: 16px;
}
.quote-panel .btn { margin-top: 16px; }

/* ── 报价面板：「按 Gerber 单独报价」状态（阶梯钢网 / 其他尺寸）─────────
   这条路的目的是把"报不了价"变成一次咨询邀约：说清楚为什么、要什么、怎么给。 */
.quote-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .64rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 10px;
}
.quote-factors { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 9px; }
.quote-factors li {
  position: relative; padding-left: 23px;
  font-size: .84rem; line-height: 1.5; color: var(--dark-text);
}
.quote-factors li::before {
  content: ""; position: absolute; left: 0; top: .38em;
  width: 12px; height: 12px; border-radius: 50%;
  border: 1.5px solid var(--cyan); opacity: .75;
}

/* 明细里的信息行（有效面积 / 参考重量）：比价格行弱一档 */
.quote-row--info { font-size: .82rem; color: var(--dark-text-2); }
.quote-row--info > span:last-child { color: #fff; }

/* 尺寸下拉里的「其他尺寸」 */
.opt__custom { font-weight: 600; }

/* 首屏估价卡：不能出价时显示文字（阶梯钢网 / 其他尺寸）而不是金额 */
.estimator__price--text {
  font-family: var(--font); font-size: 1.02rem; font-weight: 600;
  letter-spacing: -.01em; line-height: 1.3;
}

/* ══ 表格 ══════════════════════════════════════════════════════════════════ */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
}
table { width: 100%; border-collapse: collapse; font-size: .91rem; }
th, td { padding: 15px 20px; text-align: left; border-bottom: 1px solid var(--line-2); }
th {
  background: var(--bg-2); font-weight: 600; font-size: .78rem;
  text-transform: uppercase; letter-spacing: .07em; color: var(--ink-4);
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--bg-2); }

/* ── 车间视频：竖屏 2:3，右栏固定宽度，点播放才下载 ──────────────────── */
.video-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--dark);
  box-shadow: 0 2px 4px rgba(10, 16, 32, .06), 0 24px 56px rgba(10, 16, 32, .16);
  aspect-ratio: 2 / 3;
  max-width: 400px;
  margin-left: auto;
}
.video-frame video { display: block; width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 1000px) {
  .video-frame { margin-left: 0; max-width: 340px; }
}

/* 分组标题行（框尺寸表里区分「有框 / 无框」）*/
tbody tr.size-group td {
  background: var(--bg-3);
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-4);
  padding-top: 11px; padding-bottom: 11px;
}
tbody tr.size-group:hover td { background: var(--bg-3); }

/* ══ 订单信息（付款页头部）════════════════════════════════════════════════ */
.order-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin: 0;
}
.order-meta dt {
  font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .10em;
  color: var(--ink-5); margin-bottom: 6px;
}
.order-meta dd {
  margin: 0; font-size: .96rem; font-weight: 600;
  color: var(--ink); word-break: break-word;
}

/* ══ 徽章 ══════════════════════════════════════════════════════════════════ */
.badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: var(--r-full);
  padding: 8px 17px; font-size: .85rem; color: var(--ink-4);
  background: #fff; font-weight: 500;
}
.badge b { color: var(--ink); font-weight: 700; }

.pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 600;
  color: var(--accent); background: var(--accent-tint);
  padding: 3px 9px; border-radius: var(--r-sm);
  letter-spacing: .02em;
}

/* ══ 步骤 ══════════════════════════════════════════════════════════════════ */
.steps {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  counter-reset: s;
}
.step { position: relative; padding-top: 52px; }
.step::before {
  counter-increment: s; content: counter(s, decimal-leading-zero);
  position: absolute; top: 0; left: 0;
  font-family: var(--font-mono);
  font-size: .82rem; font-weight: 600;
  color: var(--accent);
  background: var(--accent-tint);
  width: 38px; height: 38px; border-radius: 10px;
  display: grid; place-items: center;
}
.step h3 { font-size: 1rem; margin-bottom: .4em; }
.step p { font-size: .88rem; color: var(--ink-4); margin: 0; line-height: 1.6; }

/* ══ FAQ ══════════════════════════════════════════════════════════════════ */
.faq {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff; overflow: hidden;
}
.faq details { border-bottom: 1px solid var(--line-2); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer; padding: 20px 24px;
  font-weight: 600; font-size: .96rem; color: var(--ink);
  list-style: none;
  display: flex; justify-content: space-between; gap: 20px; align-items: center;
  transition: background .15s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: none;
  width: 18px; height: 18px;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M9 4v10M4 9h10'/%3E%3C/svg%3E");
  transition: transform .2s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { background: var(--bg-2); }
.faq__body { padding: 0 24px 22px; color: var(--ink-4); font-size: .92rem; line-height: 1.7; }
.faq__body p:last-child { margin-bottom: 0; }

/* ══ 页脚 ══════════════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--dark);
  color: var(--dark-text-2);
  padding: 72px 0 32px;
  font-size: .9rem;
}
.site-footer h4 {
  color: #fff; font-size: .74rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em;
  margin-bottom: 18px;
}
.site-footer a { color: var(--dark-text-2); }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; gap: 40px; grid-template-columns: 1.7fr 1fr 1fr 1fr 1.4fr; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-bottom {
  margin-top: 52px; padding-top: 26px;
  border-top: 1px solid var(--dark-line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .82rem; color: rgba(255,255,255,.36);
}

/* ══ 悬浮 WhatsApp ═════════════════════════════════════════════════════════ */
.wa-float {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--wa); color: #fff;
  display: grid; place-items: center;
  box-shadow: 0 6px 20px rgba(37,211,102,.4);
  transition: .18s var(--ease);
}
.wa-float:hover { transform: scale(1.06); color: #fff; box-shadow: 0 8px 26px rgba(37,211,102,.5); }
.wa-float svg { width: 28px; height: 28px; fill: currentColor; }

/* ══ 提示条 ════════════════════════════════════════════════════════════════ */
.notice {
  border: 1px solid var(--accent-line);
  background: var(--accent-tint);
  padding: 16px 20px; border-radius: var(--r);
  font-size: .89rem; line-height: 1.65; color: #7C2D12;
}
.notice strong { color: #6B2509; }
.notice--info {
  border-color: #BAE0FD; background: #F0F9FF; color: #075985;
}
.notice--info strong { color: #05405E; }

/* ══ 内页头 ════════════════════════════════════════════════════════════════ */
.page-head {
  position: relative; overflow: hidden;
  background: var(--dark); color: #fff;
  padding: 64px 0 60px;
}
.page-head::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(680px 300px at 88% -30%, rgba(29,78,216,.16), transparent 70%);
}
.page-head .wrap { position: relative; z-index: 1; }
.page-head h1 { color: #fff; margin-bottom: .34em; font-size: clamp(1.9rem, 3.6vw, 2.85rem); }
.page-head p { color: var(--dark-text); max-width: 64ch; margin: 0; font-size: 1.05rem; }

.crumbs { font-size: .82rem; color: var(--dark-text-2); margin-bottom: 18px; }
.crumbs a { color: var(--dark-text); }
.crumbs a:hover { color: #fff; }

/* ══ 列表样式（用于带图标的清单）═════════════════════════════════════════ */
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li {
  display: flex; gap: 11px; align-items: flex-start;
  padding: 7px 0; font-size: .92rem; color: var(--ink-4);
}
.checklist li svg { color: var(--accent); margin-top: 3px; flex: none; }

/* ══ 跳过导航（Tab 第一下出现）═══════════════════════════════════════════ */
.skip-link {
  position: absolute; left: 12px; top: -70px; z-index: 200;
  background: var(--ink); color: #fff;
  padding: 12px 20px; border-radius: var(--r-sm);
  font-weight: 600; font-size: .9rem;
  transition: top .18s var(--ease);
}
.skip-link:focus { top: 12px; color: #fff; }

/* ══ 表单错误 ══════════════════════════════════════════════════════════════ */
.field-error {
  display: none;
  font-size: .82rem; color: #B91C1C; margin-top: 7px;
}
.field-error.is-on { display: block; }
input.is-invalid { border-color: #DC2626; }
input.is-invalid:focus {
  border-color: #DC2626;
  box-shadow: 0 0 0 3px rgba(220,38,38,.12);
}

/* ══ 无障碍 ════════════════════════════════════════════════════════════════ */
.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;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ══ 响应式 ════════════════════════════════════════════════════════════════ */
@media (max-width: 1000px) {
  .calc { grid-template-columns: 1fr; gap: 28px; }
  .quote-panel { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 860px) {
  .section { padding: 72px 0; }
  .sec-head { margin-bottom: 40px; }
  .nav { height: 64px; gap: 16px; }
}

@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .section { padding: 60px 0; }
  .section--tight { padding: 44px 0; }

  .nav__toggle { display: block; margin-left: auto; }
  .nav__links {
    display: none;
    position: absolute; top: 64px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px 20px 18px; margin: 0;
    box-shadow: var(--sh-2);
  }
  .nav__links.is-open { display: flex; }
  .nav__links a {
    padding: 14px 4px; border-bottom: 1px solid var(--line-2);
    border-radius: 0; width: 100%;
  }
  .nav__links a:last-child { border-bottom: 0; }
  .nav__links a.nav__cta {
    margin: 14px 0 0; padding: 14px 16px;
    text-align: center; border-radius: var(--r-sm);
    color: #fff;
  }
  .nav__right { margin-left: 0; }

  .hero { padding: 68px 0 64px; }
  .hero h1 { max-width: none; }
  .hero__stats { margin-top: 44px; padding-top: 28px; gap: 20px; }
  .hero__stat b { font-size: 1.4rem; }

  .page-head { padding: 48px 0 44px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .site-footer { padding: 56px 0 28px; }

  .wa-float { right: 16px; bottom: 16px; width: 50px; height: 50px; }
  .quote-panel { padding: 24px; }
  .quote-total b { font-size: 1.85rem; }

  .card { padding: 24px; }
  th, td { padding: 13px 15px; }
}

@media print {
  .site-header, .site-footer, .wa-float, .hero__cta, .quote-panel .btn, .lang,
  .crumbs, .btn, .notice { display: none; }
  .section { padding: 16px 0; }
  .section--alt, .section--dark, .section--navy { background: #fff !important; }
  .hero, .page-head { background: #fff; padding: 0 0 20px; color: #000; }
  .hero h1, .page-head h1, .page-head p { color: #000; }
  .card, .table-wrap { border-color: #ccc; box-shadow: none; }
  .order-meta dd, h1, h2, h3, b { color: #000 !important; }
  body { font-size: 12pt; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   V2 —— 真实照片版视觉系统
   ---------------------------------------------------------------------------
   首页改成「分栏首屏 + 实拍照片带 + 工厂画廊」，全站视觉以真实照片为主。
   ═══════════════════════════════════════════════════════════════════════════ */

/* ══ 分栏首屏 ══════════════════════════════════════════════════════════════ */
.hero--home {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink-3);
  padding: 84px 0 0;
}
/* 右侧背景：淡淡的品牌蓝色块，让首屏有纵深但不抢照片 */
.hero--home::before {
  content: "";
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 46%;
  background: linear-gradient(200deg, var(--accent-tint), #fff 62%);
  border-left: 1px solid var(--line-2);
  pointer-events: none;
}
.hero--home .wrap { position: relative; z-index: 1; }

.hero__grid {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 64px;
  align-items: center;
  padding-bottom: 76px;
}

.hero--home .eyebrow { margin-bottom: 20px; }
.hero--home h1 {
  color: var(--ink);
  max-width: 15ch;
  margin-bottom: .38em;
  font-size: clamp(2.4rem, 4.6vw, 4.1rem);
  letter-spacing: -.042em;
  line-height: 1.03;
}
.hero--home .lead {
  max-width: 52ch;
  font-size: 1.1rem;
  color: var(--ink-3);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* 首屏照片 */
.hero__photo {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(10,16,32,.06), 0 24px 60px rgba(10,16,32,.16);
  aspect-ratio: 4 / 5;
  background: var(--bg-3);
}
.hero__photo img { width: 100%; height: 100%; object-fit: cover; }

/* 照片上的小标签：说明这张图是什么，不是装饰 */
.hero__tag {
  position: absolute; left: 16px; bottom: 16px;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(10,16,32,.72);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: .78rem; font-weight: 500;
  padding: 8px 14px; border-radius: var(--r-full);
}
.hero__tag::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: #4ADE80; flex: none;
}

/* ══ 首屏下信任条 ════════════════════════════════════════════════════════ */
.trust-bar {
  border-top: 1px solid var(--line);
  background: #fff;
}
.trust-bar__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
}
.trust-item {
  display: flex; align-items: flex-start; gap: 11px;
  padding: 26px 28px 26px 0;
  border-right: 1px solid var(--line-2);
  font-size: .9rem; color: var(--ink-3); line-height: 1.5;
}
.trust-item:last-child { border-right: 0; }
.trust-item svg { color: var(--accent); margin-top: 2px; flex: none; }

/* ══ 照片带（整幅排开，中间不留缝）═══════════════════════════════════════ */
.photo-band {
  display: grid;
  gap: 0;
  grid-template-columns: repeat(4, 1fr);
  background: var(--dark);
}
.photo-band figure {
  margin: 0; position: relative; overflow: hidden;
  aspect-ratio: 1 / 1;
}
.photo-band img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.photo-band figure:hover img { transform: scale(1.04); }
.photo-band figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 32px 20px 18px;
  background: linear-gradient(transparent, rgba(10,16,32,.82));
  color: #fff; font-size: .82rem; font-weight: 500;
}
.photo-band figcaption b {
  display: block; font-family: var(--font-mono);
  font-size: .68rem; font-weight: 600; letter-spacing: .1em;
  color: rgba(255,255,255,.55); margin-bottom: 3px;
}

/* ══ 画廊（工厂实拍，不规则排布）═════════════════════════════════════════ */
.gallery {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(6, 1fr);
}
.gallery figure {
  margin: 0; overflow: hidden; border-radius: var(--r-lg);
  position: relative; background: var(--bg-3);
}
.gallery img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.gallery figure:hover img { transform: scale(1.03); }
.gallery figcaption {
  position: absolute; left: 14px; bottom: 12px; right: 14px;
  color: #fff; font-size: .78rem; font-weight: 500;
  text-shadow: 0 1px 8px rgba(0,0,0,.7);
}
.gallery .g-wide { grid-column: span 4; aspect-ratio: 16 / 9; }
.gallery .g-tall { grid-column: span 2; aspect-ratio: 3 / 4; }
.gallery .g-half { grid-column: span 3; aspect-ratio: 4 / 3; }

/* ══ 带照片的卡片 ════════════════════════════════════════════════════════ */
.media-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: .2s var(--ease);
  height: 100%;
}
.media-card:hover {
  border-color: var(--accent-line);
  box-shadow: var(--sh-2);
  transform: translateY(-2px);
}
.media-card__photo {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line-2);
}
.media-card__photo img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.media-card:hover .media-card__photo img { transform: scale(1.04); }
.media-card__photo--contain { padding: 20px; }
.media-card__photo--contain img { object-fit: contain; }
.media-card__body { padding: 22px 24px 26px; flex: 1; }
.media-card__body h3 { margin-bottom: .4em; font-size: 1.125rem; }
.media-card__body p {
  font-size: .89rem; color: var(--ink-4);
  line-height: 1.62; margin: 0;
}

/* ══ 能力清单（等宽数字 + 细分隔线）═════════════════════════════════════ */
.cap-list { list-style: none; padding: 0; margin: 0; counter-reset: cap; }
.cap-list li {
  display: flex; gap: 16px; align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-2);
  font-size: .95rem; color: var(--ink-2);
}
.cap-list li:last-child { border-bottom: 0; }
.cap-list li::before {
  counter-increment: cap;
  content: counter(cap, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: .76rem; font-weight: 600;
  color: var(--accent);
  flex: none; width: 26px;
}

/* ══ 深色规格面板（等宽字体，工程感）════════════════════════════════════ */
.spec-panel {
  background: var(--dark);
  color: var(--dark-text);
  border-radius: var(--r-lg);
  padding: 34px 36px;
  position: relative; overflow: hidden;
}
.spec-panel::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(520px 240px at 100% 0%, rgba(46,95,216,.22), transparent 70%);
}
.spec-panel > * { position: relative; }
.spec-panel h3 { color: #fff; }
.spec-panel .spec-row {
  display: flex; justify-content: space-between; gap: 6px 20px;
  flex-wrap: wrap;                 /* 取值放不下时整行移到下一行，而不是被切掉 */
  padding: 11px 0;
  border-bottom: 1px solid var(--dark-line);
  font-size: .88rem;
}
.spec-panel .spec-row:last-child { border-bottom: 0; }
.spec-panel .spec-row span:last-child {
  font-family: var(--font-mono); color: #fff; font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ══ 深色区块上的蓝色必须提亮，否则看不见 ══════════════════════════════ */
.eyebrow--bright { color: var(--accent-bright); }

/* ══ 页脚补充：公司主体信息 ═════════════════════════════════════════════ */
.footer-legal {
  font-size: .8rem; color: rgba(255,255,255,.42);
  line-height: 1.75;
}
.footer-legal b { color: rgba(255,255,255,.72); font-weight: 600; }
.site-footer .logo img { height: 28px; }

/* ══ V2 响应式 ══════════════════════════════════════════════════════════ */
@media (max-width: 1000px) {
  .hero--home::before { display: none; }
  .hero__grid { grid-template-columns: 1fr; gap: 44px; padding-bottom: 56px; }
  .hero__photo { aspect-ratio: 16 / 10; }
  .hero--home h1 { max-width: 20ch; }
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .gallery .g-wide { grid-column: span 4; }
  .gallery .g-tall { grid-column: span 2; }
  .gallery .g-half { grid-column: span 2; }
}
@media (max-width: 720px) {
  .hero--home { padding-top: 52px; }
  .hero__photo { aspect-ratio: 4 / 3; }
  .photo-band { grid-template-columns: repeat(2, 1fr); }
  .trust-item { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line-2); }
  .trust-item:last-child { border-bottom: 0; }
  .gallery { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .gallery .g-wide, .gallery .g-tall, .gallery .g-half {
    grid-column: span 2; aspect-ratio: 4 / 3;
  }
  .spec-panel { padding: 26px 22px; }
}

/* ══ 补充修正 ═══════════════════════════════════════════════════════════ */

/* 大标题断行更自然（中文尤其明显：别把「激光」劈成两半）*/
h1, h2 { text-wrap: balance; }
.hero--home h1 { max-width: 18ch; }

/* 四张一排的工序实拍 */
.gallery--4 { grid-template-columns: repeat(4, 1fr); }
.gallery--4 figure { grid-column: auto; aspect-ratio: 4 / 3; }

/* 规格面板：标签不换行，值右对齐换行 */
.spec-panel .spec-row span:first-child { flex: none; white-space: nowrap; }
.spec-panel .spec-row span:last-child {
  text-align: right; flex: 1 1 auto; min-width: 0;
}
/* 每个取值不可断行；分隔点居中留白，换行时整组一起换 */
.spec-panel .spec-row span:last-child i { font-style: normal; white-space: nowrap; }
.spec-panel .spec-row span:last-child em {
  font-style: normal; color: rgba(255, 255, 255, .3);
}

@media (max-width: 1000px) {
  .gallery--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .gallery--4 { grid-template-columns: 1fr; }
  .gallery--4 figure { aspect-ratio: 4 / 3; }
}

/* ══ 内页页头带照片（深色蒙版压住，文字仍然清晰）═════════════════════════ */
.page-head--photo {
  background-image:
    linear-gradient(100deg, rgba(10,16,32,.95) 0%, rgba(10,16,32,.78) 38%, rgba(10,16,32,.34) 100%),
    var(--head-photo);
  background-size: cover;
  background-position: center;
}
.page-head--photo::before { display: none; }

/* ══ 报价表单分组 ═══════════════════════════════════════════════════════ */
.form-step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 28px 10px;
  margin-bottom: 16px;
}
.form-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 700;
  letter-spacing: .14em;
  color: var(--accent);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-2);
}
.form-step .field:last-child { margin-bottom: 16px; }
.calc__form .hr { display: none; }

/* 报价面板下面那张产品图 */
.panel-photo {
  margin-top: 16px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}
.panel-photo img { width: 100%; height: auto; display: block; }

@media (max-width: 1000px) {
  .panel-photo { display: none; }
}
@media (max-width: 720px) {
  .form-step { padding: 20px 18px 4px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   V3 —— 版式升级
   ---------------------------------------------------------------------------
   1. 内容区加宽到 1280，区块间距加到 128，让页面"呼吸"
   2. 首屏改成左文右图，照片铺满右半屏直到浏览器边缘（不再是浮在中间的小卡片）
   ═══════════════════════════════════════════════════════════════════════════ */

:root { --maxw: 1280px; }
/* 区块间距对齐设计系统的 space-2xl（4rem / 64px）——相邻区块共 128px。
   原先是 128px 单边（相邻共 256px），比设计稿松一倍，是页面显得散的主因。 */
.section { padding: 64px 0; }
.section--tight { padding: 44px 0; }

h2 { letter-spacing: -.02em; }

/* ══ 首屏重做 ═══════════════════════════════════════════════════════════ */
.hero--home { padding: 0; background: #fff; }
.hero--home::before { display: none; }

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  /* 用 min-height 而不是固定 height：内容（信任条移进来后）变高时能自然撑开，
     原先固定 820px 时内容是靠"溢出"显示的，属于碰巧没坏 */
  min-height: clamp(600px, 78vh, 800px);
}

.hero__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 60px 80px max(24px, calc((100vw - 1280px) / 2 + 24px));
}
.hero__text-inner { max-width: 600px; }

.hero--home h1 {
  /* 对齐设计系统 display-xl：56px / 行高 1.14 / 字距 -.03em / 字重 800
     （改前是 52.8px / 行高 1.03，又小又挤） */
  font-size: clamp(2.25rem, 4.375vw, 3.5rem);
  letter-spacing: -.03em;
  line-height: 1.14;
  margin-bottom: .34em;
  max-width: 14ch;
}

/* 只作用于首页首屏，别影响工厂页/产品页里同名的图片组件 */
.hero--home .hero__photo {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  box-shadow: none;
  aspect-ratio: auto;
  height: 100%;
  min-height: 100%;
  background: var(--bg-3);
}
.hero--home .hero__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero--home .hero__tag { left: 24px; bottom: 24px; }

/* ── 首屏眉标：胶囊 + 脉冲绿点（对齐设计稿）──────────────────────────── */
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px 6px 12px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-full);
  background: #fff;
  box-shadow: var(--sh-1);
  margin-bottom: 24px;
}
.hero__eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--wa);
  flex: none;
  animation: eyebrowPing 2.4s var(--ease) infinite;
}
@keyframes eyebrowPing {
  0%   { box-shadow: 0 0 0 0 rgba(37, 211, 102, .55); }
  70%  { box-shadow: 0 0 0 7px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}
@media (prefers-reduced-motion: reduce) { .hero__eyebrow::before { animation: none; } }

/* ── 首屏内的信任条：2×2，去掉竖分隔线 ──────────────────────────────── */
.trust-bar__grid--inhero {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 28px;
  margin-top: 34px;
}
.trust-bar__grid--inhero .trust-item {
  padding: 0;
  border-right: 0;
  font-size: .875rem;
  gap: 8px;
}

@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; height: auto; }
  .hero__text { padding: 56px 24px 44px; }
  .hero__text-inner { max-width: none; }
  .hero--home .hero__photo { aspect-ratio: 16 / 11; height: auto; min-height: 0; }
  .hero--home .hero__tag { left: 16px; bottom: 16px; }
  .section { padding: 56px 0; }
}
@media (max-width: 720px) {
  .hero__text { padding: 44px 20px 36px; }
  .hero--home .hero__photo { aspect-ratio: 4 / 3; }
  .section { padding: 48px 0; }
  .section--tight { padding: 36px 0; }
}

/* ══ 导航：当前页必须一眼看出来 ═══════════════════════════════════════ */
.nav__links a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  background: var(--bg-3);
}
.nav__links a[aria-current="page"]::after {
  content: "";
  display: block;
  height: 2px;
  margin: 5px auto -3px;
  border-radius: 2px;
  background: var(--accent);
}
@media (max-width: 720px) {
  .nav__links a[aria-current="page"] { background: var(--accent-tint); color: var(--accent-2); }
  .nav__links a[aria-current="page"]::after { display: none; }
}

/* ══ 「有 Gerber？直接发」卡片 ═══════════════════════════════════════════ */
.gerber-card {
  display: flex; align-items: center; justify-content: space-between;
  gap: 22px; flex-wrap: wrap;
  background: linear-gradient(135deg, #F3FCF6, #ECFDF5);
  border: 1px solid #BBF7D0;
  border-radius: var(--r-lg);
  padding: 24px 28px;
  margin-bottom: 18px;
}
.gerber-card h3 { font-size: 1.02rem; margin-bottom: .32em; }
.gerber-card p {
  font-size: .89rem; color: var(--ink-4);
  line-height: 1.6; margin: 0; max-width: 62ch;
}
.gerber-card .btn { flex: none; }

/* ══ 「发给我们什么」清单 ═══════════════════════════════════════════════ */
.send-list {
  list-style: none; padding: 0; margin: 36px 0 0;
  counter-reset: send;
  display: grid; gap: 0;
  border-top: 1px solid var(--line);
}
.send-list li {
  display: flex; gap: 18px; align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1rem; color: var(--ink-2);
}
.send-list li::before {
  counter-increment: send;
  content: counter(send, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: .82rem; font-weight: 600;
  color: var(--accent);
  flex: none;
}
@media (max-width: 720px) {
  .gerber-card { padding: 20px; }
  .gerber-card .btn { width: 100%; }
}

/* ══ 面积比计算器 ═══════════════════════════════════════════════════════ */
.tool-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: start; }
@media (max-width: 900px) { .tool-grid { grid-template-columns: 1fr; gap: 28px; } }

.tool-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 30px 32px;
}
.tool-card .field:last-child { margin-bottom: 0; }

.tool-result {
  background: var(--dark); color: var(--dark-text);
  border-radius: var(--r-lg); padding: 32px 34px;
  position: relative; overflow: hidden;
}
.tool-result::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(460px 220px at 100% 0%, rgba(46,95,216,.22), transparent 70%);
}
.tool-result > * { position: relative; }
.tool-result__label {
  font-size: .74rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--dark-text-2);
}
.tool-result__value {
  font-size: 3.4rem; font-weight: 700; letter-spacing: -.04em;
  color: #fff; line-height: 1; margin: 10px 0 4px;
  font-variant-numeric: tabular-nums;
}
.tool-result__value small { font-size: 1rem; font-weight: 500; color: var(--dark-text-2); letter-spacing: 0; }
.tool-verdict {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .9rem; font-weight: 600;
  padding: 9px 15px; border-radius: var(--r-full);
  margin-top: 16px;
}
.tool-verdict--good     { background: rgba(16,185,129,.16); color: #6EE7B7; }
.tool-verdict--marginal { background: rgba(245,158,11,.16);  color: #FCD34D; }
.tool-verdict--poor     { background: rgba(239,68,68,.16);   color: #FCA5A5; }
.tool-verdict::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex: none; }

.tool-rows { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--dark-line); }
.tool-rows .spec-row span:first-child { color: var(--dark-text-2); }
.tool-formula {
  font-family: var(--font-mono); font-size: .78rem;
  color: var(--dark-text-2); margin-top: 20px; line-height: 1.6;
}
/* 计算器里的数据行（.spec-row 原本只绑在 .spec-panel 上，这里要独立一份）*/
.tool-rows .spec-row {
  display: flex; justify-content: space-between; gap: 20px;
  padding: 11px 0; font-size: .88rem;
}
.tool-rows .spec-row:last-child { border-bottom: 0; }
.tool-rows .spec-row span:last-child {
  font-family: var(--font-mono); color: #fff; font-weight: 500;
  font-variant-numeric: tabular-nums; text-align: right;
}

/* 产品卡里的直达链接 */
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px;
  font-size: .89rem; font-weight: 600;
  color: var(--accent);
}
.card-link::after { content: "→"; transition: transform .18s var(--ease); }
.card-link:hover::after { transform: translateX(3px); }

/* ══ 硬参数条（学淘宝主图：唯一的硬数字放最抢眼的位置）═══════════════════ */
.spec-strip {
  background: var(--dark);
  color: #fff;
  padding: 26px 0;
  position: relative;
  overflow: hidden;
}
.spec-strip::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 200px at 20% 0%, rgba(46,95,216,.20), transparent 70%);
}
.spec-strip .wrap { position: relative; }
.spec-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.spec-strip__grid > div {
  padding: 6px 26px;
  border-right: 1px solid var(--dark-line);
}
.spec-strip__grid > div:last-child { border-right: 0; }
.spec-strip__grid > div:first-child { padding-left: 0; }
.spec-strip b {
  display: block;
  font-family: var(--font-mono);
  /* 对齐设计系统 spec-numeral-lg：32px / 字重 700（改前 25.6px / 600，偏弱） */
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.spec-strip span {
  display: block;
  font-size: .78rem;
  color: var(--dark-text-2);
  margin-top: 3px;
}
@media (max-width: 720px) {
  .spec-strip { padding: 20px 0; }
  .spec-strip__grid { grid-template-columns: 1fr 1fr; gap: 16px 0; }
  .spec-strip__grid > div { padding: 0 16px; }
  .spec-strip__grid > div:nth-child(2) { border-right: 0; }
  .spec-strip__grid > div:nth-child(3),
  .spec-strip__grid > div:nth-child(4) { border-top: 1px solid var(--dark-line); padding-top: 14px; }
  .spec-strip__grid > div:first-child { padding-left: 0; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   V3 —— 2026-09-23 按设计稿（桌面 `UI设计参考`）重做首页
   ---------------------------------------------------------------------------
   设计语言：Inter 走文案、等宽字体走规格数字，钴蓝 = 操作色、激光青 = 技术高亮，
   1px 描边代替阴影，圆角统一收窄。
   这一块全部是覆盖规则（写在最后），要整体回退就把本块删掉。
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── 顶部信息条（导航上面的那一条，全站共用）───────────────────────────── */
/* 信息条走正常文档流（往下滚就走掉了），只有导航条吸顶 */
.site-header {
  position: static;
  background: none;
  border-bottom: 0;
  backdrop-filter: none; -webkit-backdrop-filter: none;
}
.navwrap {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.utilbar {
  background: var(--dark);
  color: rgba(255,255,255,.66);
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 9px 0;
}
.utilbar__line {
  display: flex; flex-wrap: wrap; justify-content: center;
  align-items: center; gap: 8px 14px; text-align: center;
}
.utilbar b { color: var(--cyan); font-weight: 600; }

/* 通用：小号等宽标签（设计稿里到处在用） */
.mono-label {
  display: block;
  font-family: var(--font-mono);
  font-size: .7rem; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-4);
}
.mono-label--accent { color: var(--accent); }
.mono-label--cyan { color: var(--cyan-ink); }
.section--dark .mono-label, .spec-panel .mono-label, .estimator .mono-label {
  color: rgba(255,255,255,.5);
}

/* ── 首屏：左文右「深色面板（实拍图 + 估价卡）」───────────────────────── */
/* 先把 V2 那套「整块照片铺到浏览器边缘 + 固定高度」的规则清掉 */
.hero--home { padding: 76px 0 0; }
.hero--home::before {
  display: block;
  width: auto; left: 0; right: 0; bottom: auto; height: 100%;
  background: none;
  border-left: 0;
  background-image: radial-gradient(rgba(10,16,32,.055) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
          mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
}
.hero--home .hero__text { padding: 0; }
.hero__grid {
  grid-template-columns: 1fr 1.02fr;
  gap: 56px;
  align-items: center;
  height: auto;
  padding-bottom: 84px;
}

/* 右侧那块深色面板 */
.hero__panel {
  display: flex; flex-direction: column;
  background: var(--dark);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(10,16,32,.06), 0 28px 64px rgba(10,16,32,.18);
}
.hero__shot {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--dark-3);
  border-bottom: 1px solid var(--dark-line);
}
/* 原始照片是竖构图，激光头在上半部：往上取景，别裁到板子上 */
.hero__shot img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 26%; }
/* 照片上的运转标（右上角）——不写机器编号，避免像在编设备状态 */
.hero__chip {
  position: absolute; top: 14px; right: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(10,16,32,.78);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .68rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  padding: 7px 12px; border-radius: var(--r-sm);
}
.hero__chip::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan); flex: none;
  box-shadow: 0 0 0 3px rgba(56,189,248,.22);
}

/* ── 估价卡 ───────────────────────────────────────────────────────────── */
.estimator { padding: 20px 24px 22px; }
.estimator__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; padding-bottom: 15px;
  border-bottom: 1px solid var(--dark-line);
}
.estimator__title {
  display: flex; align-items: center; gap: 10px;
  margin: 0; font-size: .98rem; font-weight: 600; color: #fff;
}
.estimator__title svg { color: var(--cyan); flex: none; }
.estimator__badge {
  font-family: var(--font-mono);
  font-size: .66rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--cyan); white-space: nowrap;
}
.estimator__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--dark-line);
}
.estimator__field label {
  display: block; margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: .64rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
  color: rgba(255,255,255,.5);
}
.estimator__field[hidden] { display: none; }
.estimator select {
  width: 100%;
  appearance: none; -webkit-appearance: none;
  background-color: var(--dark-2);
  color: #fff;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--r);
  padding: 10px 34px 10px 12px;
  font-family: var(--font-mono);
  font-size: .84rem;
  font-variant-numeric: tabular-nums;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%2338BDF8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m3 5 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
  transition: border-color .15s var(--ease);
}
.estimator select:hover { border-color: rgba(56,189,248,.5); }
.estimator select:focus-visible { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(56,189,248,.18); }
.estimator select option { background: var(--dark-2); color: #fff; }

.estimator__foot {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; padding-top: 16px;
}
.estimator__amount { min-width: 0; }
.estimator__price {
  display: block; margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 2rem; font-weight: 700; line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.estimator__sub {
  font-size: .74rem; color: rgba(255,255,255,.45);
  margin: 10px 0 0; line-height: 1.5;
}
.estimator__foot .btn { flex: none; }

/* ── 硬参数条：三层（数值 / 名称 / 一句说明）───────────────────────────── */
.spec-strip__grid > div:nth-child(odd) b { color: var(--cyan); }
.spec-strip b { font-size: clamp(1.2rem, 2.1vw, 1.6rem); letter-spacing: -.025em; }
.spec-strip span {
  margin-top: 5px;
  font-size: .84rem; font-weight: 600; color: #fff;
}
.spec-strip small {
  display: block; margin-top: 5px;
  font-size: .76rem; line-height: 1.45;
  color: rgba(255,255,255,.45);
}

/* ── 照片带：说明改成照片下方的条（不再压在图上）───────────────────────── */
.photo-band figure {
  aspect-ratio: auto;
  display: flex; flex-direction: column;
  background: var(--dark-2);
}
.photo-band img { aspect-ratio: 4 / 3; flex: none; }
.photo-band figure:hover img { transform: scale(1.03); }
.photo-band figcaption {
  position: static; left: auto; right: auto; bottom: auto;
  background: none; padding: 13px 16px;
  border-top: 1px solid var(--dark-line);
  display: flex; align-items: center; gap: 10px;
  font-size: .8rem; font-weight: 500;
}
.photo-band figcaption b {
  margin: 0; font-size: .7rem; letter-spacing: .08em;
  color: var(--cyan); font-weight: 600;
}

/* ── 画廊：说明文字移到图片下面（压在图上时亮底看不清）───────────────────
   ⚠️ 原来比例是加在 figure 上的（说明是绝对定位，不占高度）。
   说明改成占位之后，比例必须挪到 img 上，否则图片填不满格子，会留白。 */
.gallery figure {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  display: flex; flex-direction: column;
}
.gallery img { height: auto; aspect-ratio: 4 / 3; }
.gallery .g-wide img  { aspect-ratio: 16 / 9; }
.gallery .g-tall img  { aspect-ratio: 3 / 4; }
.gallery .g-half img  { aspect-ratio: 4 / 3; }
.gallery figcaption {
  position: static; left: auto; right: auto; bottom: auto;
  padding: 12px 14px; margin: 0;
  color: var(--ink-3); font-size: .82rem; font-weight: 500;
  text-shadow: none;
  border-top: 1px solid var(--line-2);
}
.gallery--4 figure,
.gallery .g-wide, .gallery .g-tall, .gallery .g-half { aspect-ratio: auto; }

@media (max-width: 720px) {
  .gallery img, .gallery .g-wide img,
  .gallery .g-tall img, .gallery .g-half img { aspect-ratio: 4 / 3; }
}

/* ── 产品卡：等宽序号 + 规格小表 ──────────────────────────────────────── */
.card-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .7rem; font-weight: 600; letter-spacing: .08em;
  color: var(--ink-4);
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 3px 8px;
}
.media-card { border-radius: var(--r-lg); }
.media-card:hover { box-shadow: 0 4px 12px rgba(10,16,32,.06); transform: translateY(-2px); }
.media-card__body { padding: 20px 22px 24px; }
.card-spec { margin-top: 16px; border-top: 1px solid var(--line-2); }
.card-spec__row {
  display: flex; justify-content: space-between; gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-2);
  font-size: .82rem;
}
.card-spec__row:last-child { border-bottom: 0; }
.card-spec__row > span:first-child { color: var(--ink-4); flex: none; }
.card-spec__row > span:last-child {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink-2); font-weight: 500; text-align: right;
}

/* ── 深色参数卡：右上角 PARAMETERS + 嵌套说明框 ────────────────────────── */
.spec-panel__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 14px; margin-bottom: 20px;
}
.spec-panel__head h3 { margin: 0; }
.spec-panel__params {
  font-family: var(--font-mono);
  font-size: .66rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--cyan); white-space: nowrap;
}
.spec-panel .spec-row > span:first-child {
  font-family: var(--font-mono);
  font-size: .68rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase;
  color: rgba(255,255,255,.5);
}
.spec-panel__note {
  margin-top: 18px; padding: 14px 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--dark-line);
  border-radius: var(--r);
  font-size: .82rem; line-height: 1.6; color: var(--dark-text);
}

/* ── FAQ 搜索框 + 无结果提示 ──────────────────────────────────────────── */
.faq-search {
  display: flex; align-items: center; gap: 10px;
  max-width: 420px; margin: 0 auto 18px;
  padding: 0 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  transition: border-color .15s var(--ease);
}
.faq-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(29,78,216,.12); }
.faq-search svg { color: var(--ink-5); flex: none; }
.faq-search input {
  flex: 1; border: 0; outline: none; background: none;
  padding: 12px 0; font-size: .92rem; font-family: inherit; color: var(--ink);
}
.faq-search input::-webkit-search-cancel-button { cursor: pointer; }
.faq-empty {
  text-align: center; color: var(--ink-4);
  font-size: .9rem; margin: 0 0 18px;
}

/* ── 灯箱（点开看大图）────────────────────────────────────────────────── */
.is-zoomable { cursor: zoom-in; }
.is-zoomable:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
body.no-scroll { overflow: hidden; }
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  display: none; place-items: center;
  padding: 5vh 4vw;
  background: rgba(6,10,20,.92);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.lightbox.is-open { display: grid; }
.lightbox img {
  max-width: 100%; max-height: 90vh;
  border-radius: var(--r);
  box-shadow: 0 24px 70px rgba(0,0,0,.55);
}
.lightbox__close {
  position: absolute; top: 20px; right: 20px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff; cursor: pointer;
  display: grid; place-items: center;
  transition: background .15s var(--ease);
}
.lightbox__close:hover { background: rgba(255,255,255,.22); }
.lightbox__close svg {
  width: 20px; height: 20px;
  stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round;
}

/* ── 面积比工具：宽厚比达标标记 + 判定下面的建议 ──────────────────────── */
.spec-flag {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: .68rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  padding: 3px 7px; border-radius: var(--r-sm);
  margin-left: 6px;
}
.spec-flag--ok    { background: rgba(16,185,129,.16); color: #6EE7B7; }
.spec-flag--watch { background: rgba(245,158,11,.16); color: #FCD34D; }

.tool-rows .spec-row span:last-child {
  font-family: var(--font-mono); color: #fff;
  font-variant-numeric: tabular-nums;
}
.tool-advice {
  margin: 18px 0 0; padding: 13px 15px;
  font-size: .87rem; line-height: 1.6;
  background: rgba(255,255,255,.06);
  border-left: 3px solid var(--dark-line);
  border-radius: var(--r);
  color: var(--dark-text);
}
.tool-advice--good     { border-left-color: #34D399; }
.tool-advice--marginal { border-left-color: #FBBF24; }
.tool-advice--poor     { border-left-color: #F87171; }

/* ── 报价页：下拉下面那行用途说明（厚度那档在用）───────────────────────── */
.field__note {
  margin: 8px 0 0;
  font-size: .78rem; line-height: 1.5;
  color: var(--ink-4);
}

/* ── 报价面板：小计行、金额用等宽字、运费行 ────────────────────────────── */
.quote-row span:last-child { font-family: var(--font-mono); }
.quote-row--sub {
  margin-top: 8px; padding-top: 13px;
  border-top: 1px solid var(--dark-line);
  color: #fff; font-weight: 600;
}
.quote-row--sub span:last-child { color: #fff; font-weight: 600; }
.quote-freight {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: 14px; padding-top: 13px;
  border-top: 1px dashed var(--dark-line);
  font-size: .82rem; color: var(--dark-text-2);
}
.quote-freight span:last-child {
  font-family: var(--font-mono); color: var(--cyan); white-space: nowrap;
}
.quote-total b { color: var(--cyan); font-family: var(--font-mono); letter-spacing: -.02em; }

/* ── 科普条目：小图标 + 标题 + 正文 ───────────────────────────────────── */
.guide-item { display: flex; gap: 13px; }
.guide-item > svg { flex: none; margin-top: 3px; color: var(--cyan-ink); }
.guide-item h3 { margin-bottom: .35em; font-size: 1rem; }
.guide-item p { font-size: .89rem; color: var(--ink-4); line-height: 1.65; margin: 0; }

/* 能力清单：编号做成深色小方块（设计稿里的样式） */
.cap-list li::before {
  display: grid; place-items: center;
  width: 28px; height: 22px; flex: none;
  background: var(--dark);
  color: #fff;
  border-radius: var(--r-sm);
  font-size: .7rem;
}

/* 说明性提示框（带左侧强调线） */
.callout {
  display: flex; gap: 13px; align-items: flex-start;
  padding: 18px 20px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-line);
  border-left: 3px solid var(--accent);
  border-radius: var(--r);
  color: var(--ink-2);
  font-size: .92rem; line-height: 1.6;
}
.callout svg { flex: none; margin-top: 2px; color: var(--accent); }
.callout p { margin: 0; }

/* 「不确定选哪个？」：左边说话、右边按钮（设计稿里的样式） */
.qa-box {
  display: grid; grid-template-columns: 1fr auto;
  gap: 20px; align-items: center;
  padding: 22px 24px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.qa-box h3 { margin-bottom: .35em; font-size: 1.02rem; }
.qa-box p { margin: 0; font-size: .89rem; color: var(--ink-4); line-height: 1.6; }
.qa-box .btn { white-space: nowrap; }
@media (max-width: 640px) {
  .qa-box { grid-template-columns: 1fr; }
}

/* ── 步骤：白底描边序号 + 右上角小图标 ────────────────────────────────── */
.step { padding-top: 50px; }
.step::before {
  width: 34px; height: 34px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--ink-4);
  font-size: .74rem; font-weight: 600;
}
.step__icon {
  position: absolute; top: 4px; right: 0;
  color: var(--cyan-ink); opacity: .75;
}

/* ── 结尾 CTA：加一行眉标 ─────────────────────────────────────────────── */
.cta-band .eyebrow { color: var(--cyan); }
.cta-langs {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: .74rem; letter-spacing: .06em;
  color: rgba(255,255,255,.5);
}

/* ── V3 响应式 ────────────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 720px) {
  .estimator { padding: 18px 18px 20px; }
  .estimator__price { font-size: 1.7rem; }
  .estimator__foot { flex-wrap: wrap; align-items: stretch; }
  .estimator__foot .btn { width: 100%; justify-content: center; }
  .hero__chip { font-size: .62rem; padding: 6px 10px; }
}
@media (max-width: 460px) {
  .estimator__grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════════════════════
   首页工序轮播（6 张）
   --------------------------------------------------------------------------
   原生 scroll-snap，不引第三方库 —— 和站上其它交互（灯箱、FAQ 过滤）一致。
   ⚠️ 一屏放 4 张而不是 6 张：图源只有 421–537px，铺满 6 格每格才 200px
      虽然也够，但留 4 格能让每张显示得更大、轮播也有得滑。
   ══════════════════════════════════════════════════════════════════════════ */
.carousel { position: relative; }
.carousel__track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__track figure {
  flex: 0 0 calc((100% - 3 * 14px) / 4);
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--bg-3);
  aspect-ratio: 4 / 3;
  scroll-snap-align: start;
}
.carousel__track img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.carousel__track figure:hover img { transform: scale(1.03); }
.carousel__track figcaption {
  position: absolute; left: 14px; bottom: 12px; right: 14px;
  color: #fff; font-size: .78rem; font-weight: 500;
  text-shadow: 0 1px 8px rgba(0,0,0,.75);
}
.carousel__nav {
  display: flex; align-items: center; justify-content: center;
  gap: 16px; margin-top: 18px;
}
.carousel__btn {
  width: 38px; height: 38px; flex: none;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  color: var(--ink-2);
  font-size: 1.1rem; line-height: 1;
  cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.carousel__btn:hover:not(:disabled) {
  border-color: var(--accent); color: var(--accent); background: var(--accent-tint);
}
.carousel__btn:disabled { opacity: .35; cursor: default; }
.carousel__dots { display: flex; gap: 8px; }
.carousel__dot {
  width: 8px; height: 8px; padding: 0;
  border: 0; border-radius: 50%;
  background: var(--line);
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.carousel__dot[aria-current="true"] { background: var(--accent); transform: scale(1.25); }

@media (max-width: 1000px) {
  .carousel__track figure { flex-basis: calc((100% - 14px) / 2); }
}
@media (max-width: 620px) {
  .carousel__track figure { flex-basis: 82%; }
}

/* ══════════════════════════════════════════════════════════════════════════
   车间照片压大字（首页）
   --------------------------------------------------------------------------
   文字走 HTML 而不是烤进图里 —— 图里的字切不了语言，搜索引擎也读不到。
   ══════════════════════════════════════════════════════════════════════════ */
.bigband { position: relative; overflow: hidden; }
.bigband__photo { position: absolute; inset: 0; }
.bigband__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 55%; }
.bigband::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10,16,32,.86) 0%, rgba(10,16,32,.78) 40%, rgba(10,16,32,.94) 100%);
}
.bigband__inner {
  position: relative; z-index: 1;
  padding: clamp(56px, 7vw, 96px) 0;
  color: #fff;
}
.bigband__eyebrow {
  font-family: var(--font-mono);
  font-size: .74rem; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.bigband__title {
  margin: 14px 0 0;
  font-size: clamp(1.75rem, 4.2vw, 3rem);
  font-weight: 800; letter-spacing: -.02em; line-height: 1.12;
  /* ⚠️ 必须显式写白色：全局的 h2 { color: var(--ink) } 会盖掉继承，
     不写这行标题就是深色 —— 在深色照片上几乎看不见 */
  color: #fff;
  text-shadow: 0 2px 18px rgba(0,0,0,.45);
}
.bigband__sub {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(.9rem, 1.5vw, 1.08rem);
  color: rgba(255,255,255,.84);
}
.bigband__sub b { color: #fff; font-weight: 700; }
.bigband__icons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  margin-top: clamp(34px, 4.5vw, 54px);
  padding-top: clamp(28px, 3.6vw, 40px);
  border-top: 1px solid rgba(255,255,255,.16);
}
.bigband__icon { display: flex; gap: 13px; align-items: flex-start; }
.bigband__icon svg {
  width: 26px; height: 26px; flex: none;
  color: var(--cyan);
  stroke-width: 1.6;
}
.bigband__icon h3 {
  margin: 0 0 5px;
  font-size: .95rem; font-weight: 700; color: #fff;
}
.bigband__icon p {
  margin: 0;
  font-size: .82rem; line-height: 1.5;
  color: rgba(255,255,255,.66);
}
@media (max-width: 900px) {
  .bigband__icons { grid-template-columns: repeat(2, 1fr); gap: 22px; }
}
@media (max-width: 520px) {
  .bigband__icons { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════════════════════
   无框钢片印刷台（第 4 类产品）
   --------------------------------------------------------------------------
   2026-09-29 换成厂家给的真实资料后重做：有产品图了、规格表变成三型号，
   而且**不标价**（厂家文件写「放个产品让客户询价」）——
   所以原来那张深色价格卡整个删掉了。
   ══════════════════════════════════════════════════════════════════════════ */
.silk-uses {
  margin: 0; padding: 0; list-style: none;
}
.silk-uses li {
  position: relative; padding-left: 26px; margin-bottom: 14px;
  font-size: .98rem; line-height: 1.6;
  color: var(--ink-3);
}
.silk-uses li:last-child { margin-bottom: 0; }
.silk-uses li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 14px; height: 2px; background: var(--accent);
}
/* 三型号规格表：表头那行是型号，第一列留空 */
#silk-table thead th {
  font-family: var(--font-mono);
  font-size: .82rem; font-weight: 700;
  white-space: nowrap;
}
#silk-table th[colspan] { font-size: .9rem; font-weight: 500; color: var(--ink-3); }
@media (max-width: 720px) {
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  #silk-table { min-width: 560px; }
}

/* ══════════════════════════════════════════════════════════════════════════
   3D 渲染图横幅（覃工 2026-09-27 第 9 项）
   --------------------------------------------------------------------------
   图当背景、字走 HTML —— 这样三语言各显示各的，搜索引擎也读得到。
   （直接把带字的图塞进网页是不行的：字切不了语言、SEO 抓不到。）

   背景是浅蓝渲染图，所以文字用深色，**不像 .bigband 那样压暗**；
   改成左侧白色渐隐，保证任何窗口宽度下字都读得清，右边的 3D 钢网照样看得见。
   ⚠️ 这个板块讲的是「产品」不是「本厂实拍」，别写成工厂照片 ——
      渲染图不是实拍，说成车间照片就变成虚假陈述了。
   ══════════════════════════════════════════════════════════════════════════ */
.renderband { position: relative; overflow: hidden; background: #EAF2FB; }
.renderband__bg { position: absolute; inset: 0; }
.renderband__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 18% 50%;
}
.renderband::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg,
    rgba(255,255,255,.95) 0%,
    rgba(255,255,255,.82) 34%,
    rgba(255,255,255,0) 66%);
}
/* ⚠️ .wrap 自带 margin: 0 auto（居中）。文字块**必须**再包一层，
   直接给 .wrap 加 max-width 会把它居中推到中间、压到右边的 3D 钢网上。 */
.renderband__row { position: relative; z-index: 1; }
.renderband__inner {
  padding: clamp(52px, 6.5vw, 88px) 0;
  max-width: 620px;
}
.renderband__eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-ink);
}
.renderband__title {
  margin: 12px 0 0;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 800; letter-spacing: -.02em; line-height: 1.15;
  /* ⚠️ 全局 h1..h6 有 color: var(--ink)，这里是浅底，用默认深色正是想要的，
       但显式写一遍，免得以后有人把 .renderband 改成深底时忘了 */
  color: var(--ink);
}
.renderband__sub {
  margin: 14px 0 0;
  font-size: .98rem; line-height: 1.6;
  color: var(--ink-3);
  max-width: 46ch;
}
.renderband__specs {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: .86rem; letter-spacing: .04em;
  color: var(--accent-2);
}
.renderband__inner .btn { margin-top: 26px; }

@media (max-width: 720px) {
  .renderband__inner { max-width: none; }
  .renderband::after {
    background: linear-gradient(180deg,
      rgba(255,255,255,.96) 0%,
      rgba(255,255,255,.88) 58%,
      rgba(255,255,255,.55) 100%);
  }
}

/* ══════════════════════════════════════════════════════════════════════════
   首屏上面的车间横幅（2026-09-29 用户口述文案）
   --------------------------------------------------------------------------
   位置在**整页最上面**，比首屏还靠前 —— 所以它是访客第一眼看到的东西。
   车间照铺满当背景、文字走 HTML（三语言可切、SEO 读得到）。

   照片是亮的（整条产线 + 成品架），所以压**深色**遮罩、文字用白色 ——
   和 .renderband（浅底深字）正好相反，别搞混。
   ⚠️「德国进口激光切割设备」那条的依据是业主口头确认，见 config.js 的注释。
   ══════════════════════════════════════════════════════════════════════════ */
.topband { position: relative; overflow: hidden; background: var(--dark); }
.topband__bg { position: absolute; inset: 0; }
.topband__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 46%;
}
.topband::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(100deg,
    rgba(10,16,32,.94) 0%,
    rgba(10,16,32,.82) 44%,
    rgba(10,16,32,.58) 100%);
}
.topband__row { position: relative; z-index: 1; }
.topband__inner {
  padding: clamp(30px, 3.6vw, 46px) 0;
  max-width: 880px;
}
.topband__eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.topband__title {
  margin: 10px 0 0;
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  font-weight: 800; letter-spacing: -.02em; line-height: 1.2;
  /* ⚠️ 深底，必须显式写白 —— 全局 h1..h6 是深色的 */
  color: #fff;
}
.topband__sub {
  margin: 10px 0 0;
  font-size: .95rem; line-height: 1.6;
  color: rgba(255,255,255,.78);
  max-width: 64ch;
}
.topband__points {
  display: flex; flex-wrap: wrap;
  gap: 9px 24px;
  margin: 18px 0 0; padding: 0; list-style: none;
}
.topband__points li {
  position: relative; padding-left: 22px;
  font-size: .88rem;
  color: rgba(255,255,255,.88);
}
.topband__points li::before {
  content: ""; position: absolute; left: 0; top: .58em;
  width: 11px; height: 2px; background: var(--cyan);
}
.topband__inner .btn { margin-top: 22px; }

@media (max-width: 720px) {
  .topband__inner { max-width: none; }
  .topband::after {
    background: linear-gradient(180deg,
      rgba(10,16,32,.90) 0%,
      rgba(10,16,32,.82) 52%,
      rgba(10,16,32,.70) 100%);
  }
}

/* 印刷台的产品图：白底产品照，圆角装一下就行，不做特殊的框 */
.silk-photo {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-3);
  border: 1px solid var(--line);
}
.silk-photo img { width: 100%; height: auto; display: block; }

/* 产品页头部的起价行（同时是 Product/AggregateOffer schema 要求的"价格可见"） */
.page-head__price {
  margin-top: 12px;
  font-weight: 700;
  font-size: .95rem;
  color: var(--cyan);
}

/* ══ 指南文章页（SEO/GEO 内容集群，2026-10-09）══════════════════════════
   骨架：page-head → .answer 直答框 → .prose 正文 → 表格 → FAQ → 相关指南 → CTA
   .answer 是给 AI 搜索/AI Overviews 的 40–60 词直接回答块 */
.answer {
  margin: 0 0 28px;
  padding: 18px 20px 18px 22px;
  border-left: 3px solid var(--accent);
  background: var(--accent-tint);
  border-radius: 0 var(--r-lg) var(--r-lg) 0;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink-2);
}
.prose { font-size: 1rem; line-height: 1.75; color: var(--ink-3); }
.prose > h2 {
  margin: 2.2em 0 .6em;
  font-size: 1.45rem; line-height: 1.25; color: var(--ink);
}
.prose > h2:first-child { margin-top: 0; }
.prose h3 { margin: 1.6em 0 .5em; font-size: 1.08rem; color: var(--ink); }
.prose p { margin: 0 0 1em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.prose li { margin: .35em 0; }
.prose strong { color: var(--ink); }
.prose .num { font-family: var(--font-mono); font-size: .95em; }
.prose table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.prose th {
  text-align: left; font-weight: 700; color: var(--ink);
  border-bottom: 2px solid var(--line); padding: 9px 10px; white-space: nowrap;
}
.prose td { border-bottom: 1px solid var(--line); padding: 9px 10px; }
.prose td.num { font-family: var(--font-mono); }
.prose tr.size-group td {
  background: var(--bg-2); font-weight: 700; color: var(--ink);
}
.note {
  margin: 1.2em 0;
  padding: 12px 16px;
  border-left: 3px solid var(--line);
  background: var(--bg-2);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: .92rem; color: var(--ink-4);
}
/* 首页的「指南」入口区 */
.guide-card { display: flex; flex-direction: column; gap: 10px; }
.guide-card .card__more {
  margin-top: auto; color: var(--accent); font-weight: 700; font-size: .9rem;
}