/* ============================================================
   W. M. Keck Microscopy Center
   Inspired by HHMI Janelia AIC — dark academic, minimal, bold
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500&display=swap');

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  /* Core palette — dark science */
  --dark:       #0a0a0f;
  --dark-2:     #111118;
  --dark-3:     #1a1a24;
  --dark-4:     #252535;
  --mid:        #3a3a50;
  --rule:       rgba(255,255,255,0.1);
  --rule-light: #e5e5ec;

  /* Purple brand accent */
  --purple:     #764ba2;
  --purple-lt:  #9b6bbf;
  --purple-xl:  #c39ee0;
  --purple-xxl: #e8d8f8;

  /* Text */
  --white:      #ffffff;
  --white-70:   rgba(255,255,255,0.70);
  --white-45:   rgba(255,255,255,0.45);
  --white-25:   rgba(255,255,255,0.25);
  --ink:        #0d0d14;
  --ink-mid:    #3a3052;
  --ink-soft:   #6e6488;

  /* Semantic */
  --amber:      #d97706;
  --green:      #059669;

  --font-body:  'Inter', system-ui, sans-serif;
  --font-mono:  'IBM Plex Mono', monospace;

  --max-w:      1320px;
  --content-w:  1080px;
  --radius:     4px;
  --radius-lg:  8px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: #fff;
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ══════════════════════════════════════════
   HEADER — dark, sticky, ultra-minimal
══════════════════════════════════════════ */
header {
  background: var(--dark);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 300;
}

.header-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 3rem;
  display: flex;
  align-items: stretch;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  padding: 1.1rem 0;
  flex-shrink: 0;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--white-70);
  letter-spacing: -0.04em;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.logo-text .l1 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.logo-text .l2 {
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--white-70);
  letter-spacing: -0.01em;
}

nav {
  flex: 1;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 0;
  margin: 0;
  padding: 0;
}

nav a {
  display: flex;
  align-items: center;
  padding: 0 0.85rem;
  font-size: 0.83rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--white-45);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

nav a:hover { color: var(--white); }

nav a.active {
  color: var(--white);
  border-bottom-color: var(--purple-lt);
}

/* ══════════════════════════════════════════
   HOME HERO — full-width dark, bold
══════════════════════════════════════════ */
.home-hero {
  background-color: var(--dark);
  background-image: url('images/hela-cells-multiplex-super-resolution.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--white);
  padding: 8rem 3rem 7rem;
  position: relative;
  overflow: hidden;
}

/* Subtle grid texture */
.home-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10,10,15,0.5), rgba(10,10,15,0.5)),  /* 暗色遮罩 */
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: auto, 80px 80px, 80px 80px;
  pointer-events: none;
}

/* Purple glow */
.home-hero::after {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(118,75,162,0.18) 0%, transparent 65%);
  pointer-events: none;
}

.home-hero .inner {
  max-width: var(--content-w);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.home-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--purple-xl);
  text-transform: uppercase;
  margin-bottom: 1.8rem;
}

.home-hero .eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--purple-xl);
}

.home-hero h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.0;
  margin-bottom: 1.5rem;
  max-width: none;
  color: var(--white);
}

.home-hero h1 em {
  font-style: normal;
  color: var(--purple-xl);
}

.home-hero .subtitle {
  font-size: 1.1rem;
  color: var(--white-70);
  font-weight: 300;
  max-width: none;
  margin-bottom: 3.5rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 0;
  margin-top: 5rem;
  border-top: 1px solid var(--rule);
  padding-top: 3rem;
}

.hero-stat {
  flex: 1;
  padding-right: 2.5rem;
  border-right: 1px solid var(--rule);
  margin-right: 2.5rem;
}

.hero-stat:last-child {
  border-right: none;
  margin-right: 0;
  padding-right: 0;
}

.hero-stat .snum {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.hero-stat .slbl {
  display: block;
  font-size: 0.75rem;
  color: var(--white-45);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ══════════════════════════════════════════
   PAGE HERO
══════════════════════════════════════════ */
.page-hero {
  background-color: var(--dark);
  background-image: url('images/airyscan-drosophila-egg-chamber.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--white);
  padding: 5rem 3rem 4.5rem;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10,10,15,0.5), rgba(10,10,15,0.5)),
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: auto, 80px 80px, 80px 80px;
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(118,75,162,0.14) 0%, transparent 65%);
  pointer-events: none;
}

.page-hero .inner {
  max-width: var(--content-w);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--purple-xl);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.page-hero .eyebrow::before {
  content: '';
  display: block;
  width: 18px;
  height: 1px;
  background: var(--purple-xl);
}

.page-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 0.8rem;
  color: var(--white);
}

.page-hero p {
  font-size: 1.05rem;
  color: var(--white-70);
  font-weight: 300;
  max-width: none;
  line-height: 1.7;
}

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--purple);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover { background: var(--purple-lt); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--white-70);
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.15s, border-color 0.15s;
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer;
}

.btn-secondary:hover { color: var(--white); border-color: rgba(255,255,255,0.5); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--purple);
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
  border: 1.5px solid var(--purple);
  cursor: pointer;
}

.btn-outline:hover { background: var(--purple); color: #fff; }

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--dark);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius);
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-submit:hover { background: var(--purple); }

/* ══════════════════════════════════════════
   SECTION WRAPPER — alternating bg
══════════════════════════════════════════ */
.section {
  padding: 5rem 3rem;
}

.section.dark {
  background: var(--dark-2);
  color: var(--white);
}

.section.light {
  background: #fff;
  color: var(--ink);
}

.section.tinted {
  background: #f5f2fa;
  color: var(--ink);
}

.section-inner {
  max-width: var(--content-w);
  margin: 0 auto;
}

/* Section heading */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.section.dark .section-label { color: var(--purple-xl); }
.section.light .section-label { color: var(--purple); }
.section.tinted .section-label { color: var(--purple); }

.section-label::before {
  content: '';
  display: block;
  width: 18px;
  height: 1px;
}

.section.dark .section-label::before { background: var(--purple-xl); }
.section.light .section-label::before,
.section.tinted .section-label::before { background: var(--purple); }

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.section.dark .section-title { color: var(--white); }
.section.light .section-title,
.section.tinted .section-title { color: var(--ink); }

.section-body {
  font-size: 0.97rem;
  font-weight: 300;
  line-height: 1.8;
  max-width: none;
}

.section.dark .section-body { color: var(--white-45); }
.section.light .section-body,
.section.tinted .section-body { color: var(--ink-soft); }

/* ══════════════════════════════════════════
   CONTENT CONTAINER
══════════════════════════════════════════ */
.container {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 4rem 3rem;
  background: #fff;
}

.container h2 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin-bottom: 1rem;
  line-height: 1.1;
}

.container h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-top: 2.5rem;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}

.container p {
  font-size: 0.97rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 1.1rem;
  max-width: none;
}

.container ul, .container ol {
  margin-left: 1.4rem;
  margin-bottom: 1.2rem;
}

.container li {
  font-size: 0.97rem;
  color: var(--ink-soft);
  line-height: 1.75;
  margin-bottom: 0.4rem;
}

.container a { color: var(--purple); text-decoration: none; font-weight: 500; }
.container a:hover { text-decoration: underline; }

.container hr {
  border: none;
  border-top: 1px solid var(--rule-light);
  margin: 2.5rem 0;
}

/* ══════════════════════════════════════════
   NOTICE BOXES
══════════════════════════════════════════ */
.notice-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: rgba(255,255,255,0.65);
}

.info-box {
  background: var(--dark-3);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--purple-lt);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  margin: 2rem 0;
}

.info-box p { margin: 0; max-width: none; color: var(--white-70); font-size: 0.95rem; }
.info-box p + p { margin-top: 0.4rem; }
.info-box a { color: var(--purple-xl); font-weight: 600; }
.info-box strong { color: var(--white); }

.warning-box {
  background: rgba(217,119,6,0.12);
  border: 1px solid rgba(217,119,6,0.3);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  margin: 2rem 0;
}

.warning-box p { margin: 0; max-width: none; color: #92400e; font-size: 0.95rem; }
.warning-box .notice-label { color: var(--amber); }

.success-box {
  background: rgba(5,150,105,0.1);
  border: 1px solid rgba(5,150,105,0.3);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  margin: 2rem 0;
}

.success-box p { margin: 0; max-width: none; color: #064e3b; font-size: 0.95rem; }
.success-box a { color: var(--green); font-weight: 600; }
.success-box .notice-label { color: var(--green); }

/* ══════════════════════════════════════════
   SPEC BLOCK
══════════════════════════════════════════ */
.spec-block {
  background: #fff;
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  margin: 2rem 0;
  overflow: hidden;
}

.spec-block-header {
  background: var(--dark);
  color: var(--white);
  padding: 0.9rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  letter-spacing: -0.01em;
}

.spec-block-header .badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  background: rgba(255,255,255,0.12);
  color: var(--white-70);
  padding: 0.2em 0.55em;
  border-radius: 2px;
  letter-spacing: 0.06em;
}

.spec-block-body { padding: 1.5rem 1.6rem; }
.spec-group { margin-bottom: 1.4rem; }
.spec-group:last-child { margin-bottom: 0; }

.spec-group-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.6rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule-light);
  font-weight: 500;
}

.spec-group ul { margin: 0; list-style: none; padding: 0; }

.spec-group li {
  font-size: 0.93rem;
  color: var(--ink-soft);
  padding: 0.3rem 0 0.3rem 1.2rem;
  position: relative;
}

.spec-group li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--purple-lt);
}

/* ══════════════════════════════════════════
   EQUIPMENT GRID
══════════════════════════════════════════ */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5px;
  background: var(--rule-light);
  border: 1.5px solid var(--rule-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 2rem 0;
}

.equipment-card {
  background: #fff;
  transition: background 0.2s;
}

.equipment-card:hover { background: #f9f6ff; }

.equipment-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--dark-3);
  display: block;
}

.equipment-card-img-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--dark-3);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.equipment-card-img-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(118,75,162,0.25) 0%, transparent 60%);
}

.equipment-card-img-placeholder span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--white-25);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

.equipment-card-body { padding: 1.5rem; }

.equipment-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.45rem;
  letter-spacing: -0.02em;
}

.equipment-card-desc {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.btn-specs {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--purple);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.15s;
}

.btn-specs::after { content: '→'; }
.btn-specs:hover { color: var(--purple-lt); }

/* ══════════════════════════════════════════
   SCHEDULE
══════════════════════════════════════════ */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--rule-light);
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 2rem 0;
}

.btn-book {
  display: block;
  background: #fff;
  padding: 1.6rem;
  text-align: left;
  text-decoration: none;
  color: var(--ink);
  transition: background 0.2s;
  cursor: pointer;
  font-family: inherit;
  border: none;
}

.btn-book:hover { background: #f5f2fa; }
.btn-book:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-book:disabled:hover { background: #fff; }

.btn-book .bk-label {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--ink);
  display: block;
  margin-bottom: 0.3rem;
  letter-spacing: -0.02em;
}

.btn-book .bk-sub {
  font-size: 0.82rem;
  color: var(--ink-soft);
  display: block;
  line-height: 1.5;
}

.btn-book .bk-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-family: var(--font-mono);
  background: var(--dark);
  color: var(--purple-xl);
  border-radius: 2px;
  padding: 0.14em 0.5em;
  margin-top: 0.6rem;
  letter-spacing: 0.05em;
}

.btn-book .bk-soon {
  display: inline-block;
  font-size: 0.62rem;
  font-family: var(--font-mono);
  background: #f0ebf8;
  color: var(--ink-soft);
  border-radius: 2px;
  padding: 0.14em 0.5em;
  margin-top: 0.6rem;
  letter-spacing: 0.05em;
}

.btn-book-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--purple);
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background 0.15s;
}

.btn-book-inline:hover { background: var(--purple-lt); color: #fff; }

/* ══════════════════════════════════════════
   CONTACT
══════════════════════════════════════════ */
.contact-card {
  background: #fff;
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
}

.contact-card .cc-type {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.contact-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
  max-width: none;
  line-height: 1.65;
}

.contact-card a { color: var(--purple); text-decoration: none; font-weight: 500; }
.contact-card a:hover { text-decoration: underline; }

.contact-form {
  background: #fff;
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

.form-group { margin-bottom: 1.3rem; }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.4rem;
  letter-spacing: 0.01em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 0.95rem;
  border: 1px solid var(--rule-light);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.93rem;
  color: var(--ink);
  background: #fafafa;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(118,75,162,0.1);
  background: #fff;
}

.form-group textarea { resize: vertical; min-height: 150px; }

/* ══════════════════════════════════════════
   FAQ
══════════════════════════════════════════ */
.faq-item {
  border-bottom: 1px solid var(--rule-light);
}

.faq-item:first-child { border-top: 1px solid var(--rule-light); }

.faq-question {
  padding: 1.3rem 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  user-select: none;
  transition: color 0.15s;
  letter-spacing: -0.01em;
}

.faq-question:hover { color: var(--purple); }
.faq-item.active .faq-question { color: var(--purple); }

.faq-toggle {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--ink-soft);
  transition: transform 0.25s, color 0.15s;
}

.faq-item.active .faq-question .faq-toggle {
  transform: rotate(45deg);
  color: var(--purple);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 800px;
  padding-bottom: 1.4rem;
}

.faq-answer p { color: var(--ink-soft); margin-bottom: 0.5rem; font-size: 0.97rem; line-height: 1.75; }
.faq-answer ul { margin-left: 1.3rem; }
.faq-answer li { color: var(--ink-soft); font-size: 0.95rem; margin-bottom: 0.3rem; }

/* ══════════════════════════════════════════
   NEWS
══════════════════════════════════════════ */
.news-list { margin: 2rem 0; }

.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--rule-light);
  align-items: start;
}

.news-item:first-child { border-top: 1px solid var(--rule-light); }

.news-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--purple);
  letter-spacing: 0.06em;
  padding-top: 0.22rem;
  white-space: nowrap;
}

.news-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

.news-content p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: 0;
  max-width: none;
  line-height: 1.7;
}

/* ══════════════════════════════════════════
   GRID CARDS (org, resource, policy)
══════════════════════════════════════════ */
.org-grid, .resource-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule-light);
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 1.5rem 0;
}

.org-card, .resource-card {
  background: #fff;
  padding: 1.6rem;
  transition: background 0.2s;
}

.org-card:hover, .resource-card:hover { background: #f9f6ff; }

.org-card h3 {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.45rem;
  letter-spacing: -0.02em;
}

.org-card p {
  font-size: 0.87rem;
  color: var(--ink-soft);
  margin: 0;
  max-width: none;
  line-height: 1.65;
}

.resource-card .rc-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.45rem;
  font-weight: 500;
  display: block;
}

.resource-card h3 {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

.resource-card p {
  font-size: 0.87rem;
  color: var(--ink-soft);
  margin: 0;
  max-width: none;
  line-height: 1.65;
}

.resource-card .rc-links {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0;
}

.resource-card .rc-links li {
  margin: 0.25rem 0;
  font-size: 0.84rem;
}

.resource-card .rc-links a {
  color: var(--purple);
  text-decoration: none;
  font-weight: 500;
}

.resource-card .rc-links a:hover { text-decoration: underline; }

/* Policy cards */
.pol-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule-light);
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 1.5rem 0;
}

.pol-card {
  background: #fff;
  padding: 1.6rem;
}

.pol-card h3 {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.7rem;
  letter-spacing: -0.02em;
}

.pol-card ul { margin-left: 0; list-style: none; padding: 0; }

.pol-card li {
  font-size: 0.88rem;
  color: var(--ink-soft);
  padding: 0.3rem 0 0.3rem 1rem;
  position: relative;
  border-bottom: 1px solid #f0ecf8;
  line-height: 1.55;
}

.pol-card li:last-child { border-bottom: none; }

.pol-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 5px;
  height: 1px;
  background: var(--purple-lt);
}

/* Services note */
.services-note {
  background: #f5f2fa;
  border: 1px solid #e0d8f0;
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  margin: 2rem 0;
}

.services-note p { margin: 0 0 1rem; max-width: none; font-size: 1rem; }

/* Team cards */
.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5px;
  background: var(--rule-light);
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 2rem 0;
}

.team-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.team-grid-three .team-card { padding: 2rem 1.5rem; }
.team-grid-three .team-card-top { gap: 1rem; }
.team-grid-three .team-avatar-photo { width: 64px; height: 64px; }

.team-card {
  background: #fff;
  padding: 2rem;
  transition: background 0.2s;
}

.team-card:hover { background: #f9f6ff; }

.team-card-top {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1rem;
}

.team-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--white-70);
  flex-shrink: 0;
}

.team-avatar-photo {
  width: 72px;
  height: 72px;
  overflow: hidden;
}

.team-avatar-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.team-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.2rem;
  letter-spacing: -0.02em;
}

.team-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.team-dept {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.65;
  border-top: 1px solid var(--rule-light);
  padding-top: 1rem;
}

.team-dept strong { color: var(--ink); font-weight: 600; }

/* Letter box */
.letter-box {
  background: var(--dark-3);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 2rem 2.4rem;
  margin: 2rem 0;
  position: relative;
}

.letter-box::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--purple);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.letter-box .salutation {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white-70);
  margin-bottom: 0.9rem;
}

.letter-box p {
  font-size: 0.93rem;
  color: var(--white-45);
  margin-bottom: 0.6rem;
  line-height: 1.75;
  max-width: none;
}

.letter-box a { color: var(--purple-xl); font-weight: 500; }

.letter-box .sig,
.letter-box .signature {
  margin-top: 1.2rem;
  font-size: 0.85rem;
  color: var(--white-45);
  font-style: italic;
}

/* Timeline */
.tl { margin: 1.5rem 0; }

.tl-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 0 1.5rem;
  align-items: start;
}

.tl-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--purple);
  padding-top: 0.22rem;
  text-align: right;
  letter-spacing: 0.02em;
}

.tl-body {
  padding-bottom: 1.5rem;
  border-left: 1px solid var(--rule-light);
  padding-left: 1.5rem;
  position: relative;
}

.tl-body::before {
  content: '';
  position: absolute;
  left: -5px; top: 8px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--purple);
}

.tl-body p {
  font-size: 0.93rem;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.75;
}

/* ══════════════════════════════════════════
   HOME FEATURES (below hero)
══════════════════════════════════════════ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.06);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.feature-item {
  padding: 2.5rem 2rem;
  background: var(--dark-2);
  transition: background 0.2s;
}

.feature-item:hover { background: var(--dark-3); }

.feature-item .fi-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple-xl);
  margin-bottom: 0.7rem;
  display: block;
}

.feature-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.feature-item p {
  font-size: 0.87rem;
  color: var(--white-45);
  margin: 0;
  line-height: 1.7;
}

.feature-item a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.8rem;
  font-size: 0.82rem;
  color: var(--purple-xl);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}

.feature-item a::after { content: '→'; }
.feature-item a:hover { color: var(--white); }

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
footer {
  background: var(--dark);
  color: var(--white-45);
  padding: 4rem 3rem 2.5rem;
}

.footer-content {
  max-width: var(--max-w);
  margin: 0 auto 3rem;
  display: grid;
  grid-template-columns: 2.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--rule);
}

.footer-brand .fb-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-brand .fb-mark {
  width: 28px; height: 28px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--white-45);
}

.footer-brand .fb-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: -0.01em;
}

.footer-brand p {
  font-size: 0.83rem;
  line-height: 1.8;
  color: var(--white-25);
  max-width: 260px;
}

.footer-brand p a { color: var(--white-45); text-decoration: none; }
.footer-brand p a:hover { color: var(--white); }

.footer-col h4 {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-25);
  margin-bottom: 1.1rem;
  font-family: var(--font-mono);
}

.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col ul li { margin-bottom: 0.55rem; }

.footer-col a {
  font-size: 0.88rem;
  color: var(--white-45);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--white-25);
}

.footer-bottom a { color: var(--white-25); text-decoration: none; }
.footer-bottom a:hover { color: var(--white-45); }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1000px) {
  .footer-content { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .org-grid, .resource-grid { grid-template-columns: 1fr; }
  .pol-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  html { font-size: 16px; }

  .header-container { flex-direction: column; padding: 0; gap: 0; }
  .logo { padding: 1rem 1.5rem; width: 100%; border-bottom: 1px solid var(--rule); }
  nav { width: 100%; overflow-x: auto; }
  nav ul { width: max-content; padding: 0 1rem; }
  nav a { padding: 0.75rem 0.6rem; font-size: 0.76rem; }

  .home-hero { padding: 4rem 1.5rem; }
  .home-hero h1 { font-size: 2.5rem; }
  .hero-stat .snum { font-size: 2rem; }
  .hero-stats { flex-direction: column; gap: 1.5rem; }
  .hero-stat { border-right: none; border-bottom: 1px solid var(--rule); padding-bottom: 1.5rem; margin-bottom: 0; padding-right: 0; margin-right: 0; }
  .hero-stat:last-child { border-bottom: none; padding-bottom: 0; }

  .page-hero { padding: 3rem 1.5rem; }
  .page-hero h1 { font-size: 2rem; }

  .section { padding: 3.5rem 1.5rem; }
  .container { padding: 2.5rem 1.5rem; }

  .footer-content { grid-template-columns: 1fr; gap: 2rem; }
  footer { padding: 3rem 1.5rem 2rem; }

  .features-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .equipment-grid { grid-template-columns: 1fr; }
  .pol-grid { grid-template-columns: 1fr; }
}
/* ========================================
   仅影响equipment.html的按钮样式
   使用特定的类名：.equipment-btn-specs 和 .equipment-btn-book
   schedule.html 不受影响
   ======================================== */

/* 按钮行容器 */
.equipment-button-row {
  display: flex;
  gap: 12px;
  margin-top: 15px;
}

/* ========================================
   Specification按钮 - 仅equipment.html
   ======================================== */

.equipment-btn-specs {
  /* 布局 */
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  
  /* 大小和间距 */
  padding: 11px 16px;
  min-height: 44px;
  
  /* 文字 */
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  
  /* 颜色和背景 */
  color: white;
  background-color: #764ba2;
  
  /* 边框和圆角 */
  border: none;
  border-radius: 4px;
  
  /* 链接样式 */
  text-decoration: none;
  cursor: pointer;
  
  /* 过渡效果 */
  transition: all 0.3s ease;
  
  /* 防止文字换行 */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Specification按钮悬停 */
.equipment-btn-specs:hover {
  background-color: #5a3a80;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(118, 75, 162, 0.3);
}

.equipment-btn-specs:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(118, 75, 162, 0.2);
}

/* ========================================
   Book time按钮 - 仅equipment.html
   ======================================== */

.equipment-btn-book {
  /* 布局 */
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  
  /* 大小和间距 */
  padding: 11px 16px;
  min-height: 44px;
  
  /* 文字 */
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  
  /* 颜色和背景 */
  color: white;
  background-color: #764ba2;
  
  /* 边框和圆角 */
  border: none;
  border-radius: 4px;
  
  /* 链接样式 */
  text-decoration: none;
  cursor: pointer;
  
  /* 过渡效果 */
  transition: all 0.3s ease;
  
  /* 防止文字换行 */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Book time按钮悬停 */
.equipment-btn-book:hover {
  background-color: #5a3a80;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(118, 75, 162, 0.3);
}

.equipment-btn-book:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(118, 75, 162, 0.2);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 768px) {
  .equipment-button-row {
    flex-direction: column;
    gap: 10px;
  }
  
  .equipment-btn-specs,
  .equipment-btn-book {
    width: 100%;
    min-height: 40px;
    padding: 10px 14px;
  }
}

@media (max-width: 480px) {
  .equipment-btn-specs,
  .equipment-btn-book {
    font-size: 13px;
    padding: 10px 12px;
    min-height: 38px;
  }
}
/* ══════════════════════════════════════════
   CONTACT PAGE GRID
══════════════════════════════════════════ */
.contact-page-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-page-grid > div {
  min-width: 0;
}

.contact-info-stack {
  min-width: 280px;
  width: 280px;
}

.contact-info-block p {
  white-space: nowrap;
}

.cib-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.5rem;
}

.map-placeholder {
  display: none;
}

/* ══════════════════════════════════════════
   RATES TABLES (services.html — Billing)
══════════════════════════════════════════ */
.container .rates-period { margin-bottom: 1.5rem; }
.container .rates-period strong { color: var(--ink); }

.rates-group { margin: 2rem 0; }

.container .rates-group h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.75rem;
}

.rates-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-lg);
}

.rates-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.rates-table th,
.rates-table td {
  text-align: left;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--rule-light);
  vertical-align: top;
}

.rates-table tbody tr:last-child td { border-bottom: none; }

.rates-table thead th {
  background: #f5f2fa;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink-mid);
}

.rates-table thead th span {
  display: block;
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.rates-table td { color: var(--ink-soft); }
.rates-table td:first-child { color: var(--ink); font-weight: 500; }
.rates-table td:not(:first-child) {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--ink);
  white-space: nowrap;
}

.rates-table .rate-free {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--green);
  white-space: normal;
  margin-top: 0.2rem;
}

.rates-table td.rate-nocharge { color: var(--green); font-weight: 500; }

.container .rates-note {
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 0.75rem 0 0;
}
.rates-group .rates-note + .rates-table-wrap { margin-top: 0.75rem; }

@media (max-width: 640px) {
  .rates-table th, .rates-table td { padding: 0.7rem 0.8rem; }
}
.rates-table { table-layout: fixed; }
.rates-table th:first-child, .rates-table td:first-child { width: 44%; }
.rates-table th:nth-child(2), .rates-table td:nth-child(2) { width: 28%; }
@media (max-width: 640px) {
  .rates-table { table-layout: auto; }
  .rates-table th:first-child, .rates-table td:first-child { width: auto; }
}

/* Center history timeline */
.history-timeline {
  margin-top: 1.25rem;
  border-left: 2px solid var(--purple-xxl);
  padding-left: 1.75rem;
}

.ht-item {
  position: relative;
  padding-bottom: 1.75rem;
}

.ht-item:last-child { padding-bottom: 0; }

.ht-item::before {
  content: "";
  position: absolute;
  left: calc(-1.75rem - 7px);
  top: 0.55rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 0 4px #fff;
}

.ht-year {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--purple);
  margin-bottom: 0.4rem;
}

.ht-body p { margin: 0; }