/* ==========================================================================
   陕西艺景网络科技 · wyqxa.cn
   2026-10 重构版样式表
   设计基调：深色画布 + 8K 全景实拍 + 单一强调色（琥珀橙）
   ========================================================================== */

:root {
  --ink:        #0B0F14;
  --ink-2:      #121923;
  --ink-3:      #1B2430;
  --paper:      #F6F5F2;
  --text:       #E9EDF2;
  --muted:      #93A1B1;
  --muted-2:    #6B7A8C;
  --accent:     #FF6B35;
  --accent-2:   #FFB020;
  --accent-dim: rgba(255, 107, 53, 0.14);
  --line:       rgba(255, 255, 255, 0.10);
  --line-2:     rgba(255, 255, 255, 0.18);
  --radius:     14px;
  --radius-lg:  22px;
  --wrap:       1180px;
  --ease:       cubic-bezier(.22, .61, .36, 1);
  --shadow:     0 24px 60px -20px rgba(0, 0, 0, 0.75);
  --font:       -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
                "Noto Sans CJK SC", sans-serif;
}

*, *::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: 1.75;
  color: var(--text);
  background: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video, canvas { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  margin: 0 0 .6em;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
li { margin-bottom: .4em; }

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

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 通用容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--alt { background: var(--ink-2); }
.section--paper { background: var(--paper); color: #16181C; }
.section--paper .eyebrow { color: #B04718; }
.section--paper .section-sub { color: #5A6169; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-2);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: .7;
}

.section-title {
  font-size: clamp(26px, 3.4vw, 40px);
  margin-bottom: 14px;
}
.section-sub {
  max-width: 62ch;
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 46px;
}

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(11, 15, 20, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(11, 15, 20, 0.94);
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: conic-gradient(from 210deg, var(--accent), var(--accent-2), var(--accent));
  position: relative;
  flex: 0 0 auto;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 4px;
  border: 1.5px solid rgba(0, 0, 0, .38);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 15px; letter-spacing: .04em; }
.brand-text em {
  font-style: normal;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav a {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14.5px;
  color: var(--muted);
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav a:hover { color: var(--text); background: rgba(255, 255, 255, .06); }
.nav a[aria-current="page"] { color: var(--text); }
.nav a[aria-current="page"]::after,
.nav a.is-active::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 4px;
  border-radius: 2px;
  background: var(--accent);
}

.header-tel {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  transition: border-color .2s, background .2s, color .2s;
}
.header-tel:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: #fff;
}
.header-tel svg { width: 15px; height: 15px; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  width: 18px;
  height: 1.6px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: flex-end;
  padding: 120px 0 56px;
  overflow: hidden;
  isolation: isolate;
}
.hero-viewer {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--ink-2);
}
.hero-viewer .pnlm-container { background: var(--ink-2); }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(11,15,20,.86) 0%, rgba(11,15,20,.28) 38%, rgba(11,15,20,.92) 100%),
    radial-gradient(120% 80% at 15% 100%, rgba(11,15,20,.92), transparent 60%);
}
.hero-inner { position: relative; z-index: 2; width: 100%; }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  margin-bottom: 22px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(11, 15, 20, .55);
  backdrop-filter: blur(6px);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--muted);
}
.hero-tag b { color: var(--accent-2); font-weight: 600; }
.dot-live {
  width: 7px; height: 7px; border-radius: 50%;
  background: #3ED07A;
  box-shadow: 0 0 0 0 rgba(62, 208, 122, .55);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(62, 208, 122, .5); }
  70%  { box-shadow: 0 0 0 9px rgba(62, 208, 122, 0); }
  100% { box-shadow: 0 0 0 0 rgba(62, 208, 122, 0); }
}

.hero h1 {
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 17ch;
  margin-bottom: 20px;
}
.hero h1 .grad {
  background: linear-gradient(96deg, var(--accent-2), var(--accent) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  max-width: 52ch;
  margin-bottom: 32px;
  color: #C6D0DB;
  font-size: clamp(15px, 1.5vw, 17.5px);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 44px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  transition: transform .2s var(--ease), background .2s, border-color .2s, color .2s, box-shadow .2s;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; flex: 0 0 auto; }
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: linear-gradient(180deg, #FF7C4C, var(--accent));
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(255, 107, 53, .7);
}
.btn--primary:hover { box-shadow: 0 14px 34px -10px rgba(255, 107, 53, .85); }

.btn--ghost {
  border-color: var(--line-2);
  color: var(--text);
  background: rgba(255, 255, 255, .04);
}
.btn--ghost:hover { border-color: rgba(255, 255, 255, .4); background: rgba(255, 255, 255, .09); }

.btn--dark {
  background: #16181C;
  color: #fff;
}
.btn--dark:hover { background: #000; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 640px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
  backdrop-filter: blur(8px);
}
.hero-stats div {
  background: rgba(11, 15, 20, .62);
  padding: 16px 18px;
}
.hero-stats strong {
  display: block;
  font-size: 22px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.hero-stats span { font-size: 12.5px; color: var(--muted); }

.hero-hint {
  position: absolute;
  right: 24px;
  bottom: 22px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(11, 15, 20, .6);
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  pointer-events: none;
}
.hero-hint svg { width: 14px; height: 14px; }

/* ---------- 卡片栅格 ---------- */
.grid { display: grid; gap: 18px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .012));
  transition: border-color .25s, transform .25s var(--ease), background .25s;
}
.card:hover { border-color: var(--line-2); transform: translateY(-3px); }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 14.6px; margin-bottom: 16px; }
.card ul { color: var(--muted); font-size: 14.2px; margin-bottom: 20px; }
.card ul li::marker { color: var(--accent); }

.card-num {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--accent-2);
  margin-bottom: 14px;
  display: block;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  margin-top: auto;
}
.price b { font-size: 24px; letter-spacing: -0.02em; }
.price i { font-style: normal; font-size: 13px; color: var(--muted); }
.price em {
  margin-left: auto;
  font-style: normal;
  font-size: 13.5px;
  color: var(--accent-2);
}
.card--link { display: flex; flex-direction: column; }

/* ---------- 全景样片 ---------- */
.pano-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.pano-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
  aspect-ratio: 2 / 1;
  cursor: pointer;
  padding: 0;
  text-align: left;
  transition: border-color .25s, transform .25s var(--ease);
}
.pano-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease), filter .3s;
}
.pano-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.pano-card:hover img { transform: scale(1.05); }
.pano-card::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(6, 9, 12, .88));
}
.pano-card figcaption {
  position: absolute;
  left: 16px; right: 16px; bottom: 14px;
  z-index: 2;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pano-card figcaption span {
  margin-left: auto;
  font-weight: 400;
  font-size: 12px;
  color: var(--accent-2);
}
.pano-badge {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
  padding: 4px 9px;
  border-radius: 6px;
  background: rgba(6, 9, 12, .72);
  border: 1px solid var(--line-2);
  font-size: 11px;
  letter-spacing: .08em;
  color: #fff;
  backdrop-filter: blur(4px);
}

/* ---------- 全景查看器容器 ---------- */
.viewer {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
}
.viewer--tall { aspect-ratio: 2 / 1; }
.viewer .pnlm-container { background: var(--ink-3); }
.viewer-fallback {
  position: absolute; inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- 流程 ---------- */
.steps { counter-reset: step; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.step {
  background: var(--ink);
  padding: 24px 26px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  counter-increment: step;
}
.step::before {
  content: counter(step, decimal-leading-zero);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--accent);
  padding-top: 3px;
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
}
.step h3 { font-size: 16px; margin-bottom: 4px; }
.step p { margin: 0; color: var(--muted); font-size: 14.2px; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); }
th { font-weight: 600; color: var(--muted); font-size: 13px; letter-spacing: .04em; background: rgba(255, 255, 255, .03); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td b { color: var(--accent-2); font-weight: 600; }

/* ---------- 表单 ---------- */
.form-card {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-2);
}
.field { margin-bottom: 16px; }
.field label {
  display: block;
  margin-bottom: 7px;
  font-size: 13.5px;
  color: var(--muted);
}
.field label .req { color: var(--accent); margin-left: 3px; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: rgba(255, 255, 255, .04);
  color: var(--text);
  font: inherit;
  font-size: 15px;
  transition: border-color .2s, background .2s;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2393A1B1' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, .07);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--muted-2); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.form-note { font-size: 12.5px; color: var(--muted-2); margin-top: 12px; }
.form-status {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  display: none;
}
.form-status.is-ok { display: block; background: rgba(62, 208, 122, .12); border: 1px solid rgba(62, 208, 122, .35); color: #A8E9C4; }
.form-status.is-err { display: block; background: rgba(255, 82, 82, .1); border: 1px solid rgba(255, 82, 82, .35); color: #FFB3B3; }
.form-status a { text-decoration: underline; }

.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* ---------- 联系块 ---------- */
.contact-list { display: grid; gap: 14px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .025);
  transition: border-color .2s;
}
.contact-item:hover { border-color: var(--line-2); }
.contact-item svg { width: 18px; height: 18px; margin-top: 4px; color: var(--accent-2); flex: 0 0 auto; }
.contact-item dt { font-size: 12.5px; color: var(--muted); margin-bottom: 2px; }
.contact-item dd { margin: 0; font-size: 15.5px; word-break: break-all; }
.contact-item dd a:hover { color: var(--accent-2); }

/* ---------- 问答 ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  padding: 22px 44px 22px 0;
  position: relative;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 600;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 10px; height: 10px;
  margin-top: -6px;
  border-right: 1.6px solid var(--muted);
  border-bottom: 1.6px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .25s var(--ease), border-color .2s;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; border-color: var(--accent); }
.faq .answer { padding: 0 40px 24px 0; color: var(--muted); font-size: 15px; }
.faq .answer p:last-child { margin-bottom: 0; }

/* ---------- 页脚 ---------- */
.site-footer {
  padding: 64px 0 26px;
  border-top: 1px solid var(--line);
  background: #080B0F;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-grid h4 {
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-grid a { color: var(--muted); display: block; padding: 4px 0; font-size: 14px; }
.footer-grid a:hover { color: var(--text); }
.footer-about p { color: var(--muted); font-size: 14px; max-width: 34ch; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted-2);
}
.footer-bottom a { color: var(--muted-2); }
.footer-bottom a:hover { color: var(--muted); }
.footer-bottom .sep { opacity: .4; }

/* ---------- 移动端底部 CTA ---------- */
.mobile-cta {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 95;
  background: rgba(11, 15, 20, .96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  gap: 10px;
}
.mobile-cta a {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 12px 8px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid var(--line-2);
}
.mobile-cta a.primary {
  background: linear-gradient(180deg, #FF7C4C, var(--accent));
  border-color: transparent;
  color: #fff;
  flex: 1.25;
}
.mobile-cta svg { width: 16px; height: 16px; }

/* ---------- 页头（内页） ---------- */
.page-head {
  padding: 132px 0 56px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 120% at 85% 0%, rgba(255, 107, 53, .13), transparent 62%),
    var(--ink-2);
}
.page-head h1 { font-size: clamp(28px, 4vw, 46px); max-width: 22ch; letter-spacing: -0.025em; }
.page-head .lead { max-width: 58ch; color: var(--muted); font-size: 16.5px; margin-bottom: 0; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12.5px;
  color: var(--muted-2);
  margin-bottom: 22px;
}
.breadcrumb a:hover { color: var(--accent-2); }

/* ---------- 正文排版 ---------- */
.prose { max-width: 72ch; }
.prose h2 { font-size: clamp(21px, 2.4vw, 27px); margin-top: 2.2em; }
.prose h3 { font-size: 18px; margin-top: 1.8em; color: var(--text); }
.prose p, .prose li { color: #C3CDD8; }
.prose strong { color: #fff; }
.prose blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--accent);
  color: var(--muted);
}
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.6em 0; }
.prose img { border-radius: var(--radius); }

.two-col {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: start;
}

.ratio-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.ratio-box img { width: 100%; }

.note {
  padding: 16px 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 176, 32, .28);
  background: rgba(255, 176, 32, .07);
  font-size: 13.6px;
  color: #E4C98E;
}
.note strong { color: var(--accent-2); }

/* ---------- 404 ---------- */
.err-page {
  min-height: 76vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 140px 24px 100px;
}
.err-code {
  font-size: clamp(72px, 16vw, 160px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  background: linear-gradient(180deg, #2A3441, #10161E);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 工具类 ---------- */
.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;
}
.center { text-align: center; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .two-col { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 900px) {
  .header-tel { display: none; }
  .nav-toggle { display: block; }

  .nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 10px 16px 24px;
    background: #0D1218;
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .8);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav a {
    padding: 15px 12px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    border-radius: 0;
  }
  .nav a:last-child { border-bottom: 0; }
  .nav a[aria-current="page"]::after,
  .nav a.is-active::after { display: none; }
  .nav a[aria-current="page"] { color: var(--accent-2); }

  .mobile-cta { display: flex; }
  body { padding-bottom: 70px; }

  .section { padding: 64px 0; }
  .section--tight { padding: 46px 0; }
  .page-head { padding: 104px 0 44px; }
  .hero { min-height: 72vh; padding: 100px 0 44px; }
  .hero-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-stats strong { font-size: 19px; }
  .grid--3 { grid-template-columns: 1fr; }
  .pano-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-card { padding: 24px; }
  .hero-hint { display: none; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 18px; }
  .hero-stats { grid-template-columns: 1fr; max-width: none; }
  .hero-stats div { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 16px; }
  .hero-stats strong { font-size: 18px; }
  .grid--2, .grid--4 { grid-template-columns: 1fr; }
  .pano-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .viewer { aspect-ratio: 4 / 3; }
  .step { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 打印 */
@media print {
  .site-header, .mobile-cta, .hero-viewer, .hero-hint, .site-footer { display: none !important; }
  body { background: #fff; color: #000; }
  .section { padding: 20px 0; }
}

/* ==========================================================================
   全景漫游页（/pano）
   ========================================================================== */
.tour-wrap { padding: 24px 0 0; }
.tour-viewer {
  position: relative;
  width: 100%;
  height: calc(100vh - 260px);
  min-height: 420px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
}
.tour-viewer .pnlm-container { background: var(--ink-3); }
.tour-title { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.tour-title h1 { font-size: clamp(20px, 2.6vw, 28px); margin: 0; }
.scene-strip { display: flex; gap: 10px; overflow-x: auto; padding: 16px 2px 22px; scrollbar-width: thin; }
.scene-chip {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 14px 8px 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .03);
  cursor: pointer;
  font-size: 13.5px;
  color: var(--muted);
  white-space: nowrap;
  transition: border-color .2s, color .2s, background .2s;
}
.scene-chip img { width: 46px; height: 23px; object-fit: cover; border-radius: 5px; }
.scene-chip:hover { border-color: var(--line-2); color: var(--text); }
.scene-chip.is-active { border-color: var(--accent); color: #fff; background: var(--accent-dim); }
@media (max-width: 900px) {
  .tour-viewer { height: 62vh; min-height: 340px; }
  .tour-wrap { padding-top: 16px; }
}