/* ==========================================================================
   青芒日语 · 前台样式
   设计基调：日式杂志感 / 米色纸底 / 深绿大色块 / 金色细线 / 衬线大标题
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  color-scheme: light;
  --ink: #14211b;
  --green-900: #12291f;
  --green-800: #1a3a2b;
  --green-700: #1f4634;
  --green-500: #2f6b4f;
  --green-100: #e6eee8;
  --gold: #c98f3e;
  --gold-light: #e3a24a;
  --paper: #f7f4ec;
  --paper-2: #efe9dc;
  --line: #ddd6c6;
  --muted: #6d7469;
  --white: #fff;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 18px 50px rgba(18, 41, 31, .10);
  --shadow-soft: 0 8px 24px rgba(18, 41, 31, .07);
  --maxw: 1180px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: Georgia, "Songti SC", "SimSun", serif;
  --font-jp: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;

  --header-h: 76px;
  --section-y: 108px;
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.78;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img, video, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

[hidden] { display: none !important; }

::selection {
  background: rgba(201, 143, 62, .28);
  color: var(--ink);
}

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

/* ---------- 3. 版式与通用组件 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  position: relative;
  padding: var(--section-y) 0;
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.4vw, 3.05rem);
  line-height: 1.24;
  letter-spacing: .01em;
  color: var(--ink);
}

.br-desktop { display: inline; }

.label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: .76rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.label::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold);
  flex: none;
}

.label span {
  font-family: var(--font-serif);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.label-light { color: rgba(247, 244, 236, .68); }
.label-light span { color: var(--gold-light); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 28px 56px;
  margin-bottom: 48px;
}

.section-intro {
  max-width: 42ch;
  color: var(--muted);
  font-size: .98rem;
  line-height: 1.95;
}

.section-head-dark .section-title { color: var(--paper); }
.section-head-dark .section-intro { color: rgba(247, 244, 236, .66); }
.section-head-dark .label { color: rgba(247, 244, 236, .68); }
.section-head-dark .label span { color: var(--gold-light); }

section[id],
main[id] { scroll-margin-top: calc(var(--header-h) + 12px); }

.lead {
  font-size: 1.08rem;
  line-height: 1.95;
  color: var(--ink);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 0 3px;
  border: none;
  border-bottom: 1px solid rgba(31, 70, 52, .35);
  background: none;
  color: var(--green-700);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: color .3s var(--ease), border-color .3s var(--ease), gap .3s var(--ease);
}

.text-link:hover {
  color: var(--gold);
  border-color: var(--gold);
  gap: 12px;
}

.text-link span { transition: transform .3s var(--ease); }
.text-link:hover span { transform: translateX(3px); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: none;
  font-family: var(--font-sans);
  font-size: .94rem;
  font-weight: 500;
  letter-spacing: .05em;
  line-height: 1.2;
  text-align: center;
  transition: transform .35s var(--ease), background-color .35s var(--ease),
              border-color .35s var(--ease), color .35s var(--ease), box-shadow .35s var(--ease);
}

.btn-primary {
  background: var(--green-500);
  border-color: var(--green-500);
  color: var(--white);
  box-shadow: 0 10px 26px rgba(47, 107, 79, .22);
}

.btn-primary:hover {
  background: var(--green-700);
  border-color: var(--green-700);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(31, 70, 52, .28);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, .55);
  color: var(--white);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .85);
  transform: translateY(-2px);
}

.btn-outline-light {
  border-color: rgba(247, 244, 236, .45);
  color: var(--paper);
}

.btn-outline-light:hover {
  background: rgba(247, 244, 236, .12);
  border-color: rgba(247, 244, 236, .8);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 20px;
  font-size: .82rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-arrow {
  display: inline-block;
  transition: transform .35s var(--ease);
}

.btn-label {
  display: inline-block;
  white-space: nowrap;
}

.btn:hover .btn-arrow { transform: translateX(4px); }

.btn[aria-busy="true"],
.btn:disabled {
  opacity: .62;
  cursor: progress;
  transform: none;
  box-shadow: none;
}

.is-locked,
.is-locked body {
  overflow: hidden;
}

/* 入场动画：仅在 html.js 下隐藏，无 JS 时内容始终可见 */
html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .72s var(--ease), transform .72s var(--ease);
  will-change: opacity, transform;
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--green-900);
  color: var(--paper);
  font-size: .85rem;
  transform: translateY(-160%);
  transition: transform .3s var(--ease);
}

.skip-link:focus-visible { transform: none; }

.noscript-note {
  padding: 18px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: .9rem;
}

/* ---------- 4. 页头与导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  background: linear-gradient(to bottom, rgba(10, 22, 16, .34), rgba(10, 22, 16, 0));
  transition: background-color .4s var(--ease), box-shadow .4s var(--ease),
              backdrop-filter .4s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(247, 244, 236, .93);
  box-shadow: 0 1px 0 var(--line), 0 12px 30px rgba(18, 41, 31, .07);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  backdrop-filter: saturate(140%) blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  max-width: var(--maxw);
  height: var(--header-h);
  margin: 0 auto;
  padding: 0 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--green-900);
  box-shadow: inset 0 0 0 1px rgba(201, 143, 62, .75);
  color: var(--paper);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1;
}

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

.brand-text strong {
  font-family: var(--font-serif);
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--white);
  transition: color .4s var(--ease);
}

.brand-text small {
  margin-top: 3px;
  font-size: .56rem;
  letter-spacing: .22em;
  color: rgba(247, 244, 236, .62);
  transition: color .4s var(--ease);
}

.site-header.is-scrolled .brand-text strong { color: var(--ink); }
.site-header.is-scrolled .brand-text small { color: var(--muted); }

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav > a:not(.btn) {
  position: relative;
  padding: 6px 0;
  font-size: .9rem;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .88);
  transition: color .3s var(--ease);
}

.nav > a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}

.nav > a:not(.btn):hover { color: var(--gold-light); }
.nav > a:not(.btn):hover::after { transform: scaleX(1); }

.site-header.is-scrolled .nav > a:not(.btn) { color: var(--ink); }
.site-header.is-scrolled .nav > a:not(.btn):hover { color: var(--green-500); }

.nav-cta { margin-left: 4px; }

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}

.nav-toggle span {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.5px;
  margin-left: -9px;
  background: var(--white);
  transition: transform .35s var(--ease), opacity .25s var(--ease),
              background-color .35s var(--ease);
}

.nav-toggle span:nth-child(1) { top: 18px; }
.nav-toggle span:nth-child(2) { top: 24px; }

.nav-toggle[aria-expanded="true"] {
  border-color: var(--line);
  background: var(--white);
}

.nav-toggle[aria-expanded="true"] span { background: var(--ink); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3px) rotate(-45deg); }

body.nav-open::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(10, 22, 16, .45);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

/* ---------- 5. 首屏 ---------- */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100vh;
  min-height: 100svh;
  padding: calc(var(--header-h) + 72px) 0 0;
  overflow: hidden;
  background: var(--green-900);
  color: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-img {
  position: absolute;
  top: -9%;
  left: 0;
  width: 100%;
  height: 118%;
  max-width: none;
  object-fit: cover;
  object-position: center 42%;
  will-change: transform;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 80% at 80% 12%, rgba(18, 41, 31, .10), rgba(18, 41, 31, .55) 72%),
    linear-gradient(to top, rgba(9, 19, 14, .94) 6%, rgba(9, 19, 14, .48) 46%, rgba(9, 19, 14, .34) 72%, rgba(9, 19, 14, .58) 100%);
}

.hero-grain {
  position: absolute;
  inset: 0;
  opacity: .16;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  font-size: .78rem;
  letter-spacing: .22em;
  color: rgba(247, 244, 236, .86);
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-light);
  box-shadow: 0 0 0 4px rgba(227, 162, 74, .22);
}

.hero-title {
  max-width: 15em;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.6vw, 5.4rem);
  line-height: 1.14;
  letter-spacing: .01em;
  text-wrap: balance;
}

.hero-title em {
  font-style: italic;
  color: var(--gold-light);
}

.hero-sub {
  max-width: 46ch;
  margin-top: 28px;
  font-size: 1rem;
  line-height: 2;
  color: rgba(247, 244, 236, .82);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.hero-facts {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  width: 100%;
  max-width: var(--maxw);
  margin: 76px auto 0;
  padding: 0 32px 34px;
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 26px 6px;
  border-top: 1px solid rgba(247, 244, 236, .24);
  border-left: 1px solid rgba(247, 244, 236, .14);
}

.fact:first-child { border-left: none; padding-left: 0; }

.fact-k {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  letter-spacing: .06em;
  color: var(--gold-light);
}

.fact-v {
  font-size: .8rem;
  letter-spacing: .04em;
  color: rgba(247, 244, 236, .68);
}

.scroll-cue {
  position: absolute;
  right: 34px;
  bottom: 42px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: rgba(247, 244, 236, .66);
  transition: color .3s var(--ease);
}

.scroll-cue:hover { color: var(--gold-light); }

.scroll-cue-line {
  width: 1px;
  height: 62px;
  background: linear-gradient(to bottom, rgba(247, 244, 236, .1), rgba(247, 244, 236, .75));
  animation: cue-slide 2.6s var(--ease) infinite;
}

.scroll-cue-text {
  font-size: .6rem;
  letter-spacing: .34em;
  writing-mode: vertical-rl;
}

@keyframes cue-slide {
  0%, 100% { transform: scaleY(.55); transform-origin: top; opacity: .4; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ---------- 6. 日文横幅 ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 16px 0;
  background: var(--green-900);
  border-top: 1px solid rgba(201, 143, 62, .28);
  border-bottom: 1px solid rgba(201, 143, 62, .28);
}

.marquee-track {
  display: flex;
  width: max-content;
  align-items: center;
  animation: marquee 44s linear infinite;
}

.marquee-track span {
  margin-right: .95em;
  font-family: var(--font-jp);
  font-size: .96rem;
  letter-spacing: .22em;
  white-space: nowrap;
  color: rgba(247, 244, 236, .82);
}

.marquee-track span:nth-child(even) {
  color: var(--gold);
  letter-spacing: 0;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- 7. 关于 ---------- */
.about { background: var(--paper); }

.about-grid {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 72px;
}

.about-head { align-self: start; }

.about-body > p + p { margin-top: 18px; }
.about-body .lead { max-width: 46ch; }
.about-body > p:not(.lead) {
  max-width: 50ch;
  color: var(--muted);
  line-height: 2;
}

.feature-list {
  display: grid;
  gap: 0;
  margin-top: 44px;
  list-style: none;
}

.feature-list li {
  display: flex;
  gap: 20px;
  padding: 22px 4px;
  border-top: 1px solid var(--line);
}

.feature-list li:last-child { border-bottom: 1px solid var(--line); }

.feature-no {
  flex: none;
  min-width: 38px;
  font-family: var(--font-serif);
  font-size: 1.16rem;
  line-height: 1.4;
  color: var(--gold);
}

.feature-list strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .03em;
}

.feature-list p {
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.85;
}

/* ---------- 8. 图库 ---------- */
.gallery-section {
  background:
    linear-gradient(to bottom, rgba(239, 233, 220, .55), rgba(247, 244, 236, 0) 30%),
    var(--paper);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.filter {
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .5);
  color: var(--muted);
  font-size: .84rem;
  letter-spacing: .03em;
  transition: color .3s var(--ease), background-color .3s var(--ease),
              border-color .3s var(--ease), transform .3s var(--ease);
}

.filter:hover {
  color: var(--green-700);
  border-color: rgba(47, 107, 79, .45);
  transform: translateY(-1px);
}

.filter.is-active {
  background: var(--green-500);
  border-color: var(--green-500);
  color: var(--white);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.gallery-item {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper-2);
  box-shadow: var(--shadow-soft);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.gallery-btn {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
}

.gallery-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease), opacity .4s var(--ease);
}

.gallery-item:hover .gallery-btn img { transform: scale(1.045); }

.gallery-cap {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 34px 16px 14px;
  background: linear-gradient(to top, rgba(9, 19, 14, .88), rgba(9, 19, 14, .38) 58%, rgba(9, 19, 14, 0));
  color: var(--white);
  transition: padding-bottom .45s var(--ease);
}

.gallery-cap strong {
  font-family: var(--font-serif);
  font-size: .96rem;
  font-weight: 600;
  letter-spacing: .03em;
  text-shadow: 0 1px 10px rgba(0, 0, 0, .35);
}

.gallery-cap small {
  font-size: .76rem;
  line-height: 1.6;
  color: rgba(247, 244, 236, .76);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gallery-item:hover .gallery-cap { padding-bottom: 18px; }

.gallery-item.is-missing {
  background: repeating-linear-gradient(135deg, #e7e2d5 0 10px, #ded7c6 10px 20px);
}

.gallery-item.is-missing .gallery-btn img { opacity: .12; filter: grayscale(1); }

.gallery-item.is-missing .gallery-cap {
  background: linear-gradient(to top, rgba(20, 33, 27, .82), rgba(20, 33, 27, .3));
}

.gallery-note {
  grid-column: 1 / -1;
  padding: 40px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
  font-size: .92rem;
}

.gallery-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.gallery-more {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 30px;
  border: 1px solid var(--green-700);
  border-radius: 999px;
  background: transparent;
  color: var(--green-700);
  font-size: .88rem;
  letter-spacing: .08em;
  transition: background-color .35s var(--ease), color .35s var(--ease),
              border-color .35s var(--ease), transform .35s var(--ease);
}

.gallery-more:hover {
  background: var(--green-700);
  border-color: var(--green-700);
  color: var(--paper);
  transform: translateY(-2px);
}

.gallery-more-arrow {
  display: inline-block;
  transition: transform .4s var(--ease);
}

.gallery-more[aria-expanded="true"] .gallery-more-arrow { transform: rotate(180deg); }

/* ---------- 9. 日语研学 ---------- */
.shaoxing {
  background: var(--paper-2);
  overflow: hidden;
}

.shaoxing-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 76px;
  align-items: center;
}

.shaoxing-collage {
  position: relative;
  padding: 0 0 54px;
}

.collage-main {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.collage-main img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.collage-main figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 26px 20px 14px;
  width: 100%;
  font-size: .78rem;
  letter-spacing: .08em;
  color: rgba(247, 244, 236, .9);
  background: linear-gradient(to top, rgba(9, 19, 14, .8), rgba(9, 19, 14, 0));
}

.collage-small {
  position: absolute;
  right: -22px;
  bottom: 0;
  width: 48%;
  margin: 0;
  border: 8px solid var(--paper-2);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(18, 41, 31, .18);
  transform: rotate(-2.5deg);
  transition: transform .6s var(--ease);
}

.shaoxing-collage:hover .collage-small { transform: rotate(-1deg) translateY(-4px); }

.collage-small img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.collage-stamp {
  position: absolute;
  top: -22px;
  left: -20px;
  display: grid;
  place-items: center;
  width: 66px;
  height: 66px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--paper);
  color: var(--gold);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  transform: rotate(-10deg);
  box-shadow: 0 8px 22px rgba(18, 41, 31, .10);
}

.shaoxing-copy .section-title { margin-bottom: 26px; }
.shaoxing-copy > p:not(.label):not(.lead) {
  max-width: 46ch;
  margin-top: 16px;
  color: var(--muted);
  line-height: 2;
}
.shaoxing-copy > .lead { max-width: 46ch; color: var(--ink); }
.shaoxing-copy .text-link { margin-top: 30px; }

.quote {
  margin: 34px 0 0;
  padding: 4px 0 4px 22px;
  border-left: 2px solid var(--gold);
}

.quote-jp {
  font-family: var(--font-jp);
  font-size: 1.28rem;
  letter-spacing: .1em;
  color: var(--green-700);
}

.quote-cn {
  margin-top: 6px;
  font-size: .84rem;
  color: var(--muted);
  letter-spacing: .06em;
}

.vertical-note {
  position: absolute;
  top: 50%;
  right: -30px;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-jp);
  font-size: .82rem;
  letter-spacing: .42em;
  color: rgba(109, 116, 105, .55);
  pointer-events: none;
}

/* ---------- 10. 视频 ---------- */
.videos {
  background: var(--green-900);
  color: var(--paper);
}

.videos .section-title { color: var(--paper); }
.videos .section-intro { color: rgba(247, 244, 236, .66); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.video-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(247, 244, 236, .12);
  border-radius: var(--radius);
  background: var(--green-800);
  transition: transform .5s var(--ease), border-color .5s var(--ease),
              box-shadow .5s var(--ease);
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 143, 62, .45);
  box-shadow: 0 20px 44px rgba(0, 0, 0, .28);
}

.video-card video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #050b08;
}

.video-body { padding: 16px 18px 20px; }

.video-body h3 {
  font-family: var(--font-serif);
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--paper);
}

.video-body p {
  margin-top: 5px;
  font-size: .82rem;
  line-height: 1.75;
  color: rgba(247, 244, 236, .62);
}

.video-body .video-cat {
  display: inline-block;
  margin-top: 12px;
  padding: 3px 10px;
  border: 1px solid rgba(201, 143, 62, .4);
  border-radius: 999px;
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--gold-light);
}

.video-empty {
  display: grid;
  place-items: center;
  gap: 6px;
  max-width: 560px;
  margin: 0 auto;
  padding: 54px 32px;
  border: 1px dashed rgba(247, 244, 236, .22);
  border-radius: var(--radius-lg);
  text-align: center;
  background: rgba(255, 255, 255, .02);
}

.video-empty-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 14px;
  border: 1px solid rgba(201, 143, 62, .45);
  border-radius: 50%;
  color: var(--gold-light);
  background: rgba(201, 143, 62, .08);
}

.video-empty h3 {
  font-family: var(--font-serif);
  font-size: 1.32rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--paper);
}

.video-empty p {
  max-width: 34ch;
  margin: 10px auto 22px;
  font-size: .88rem;
  line-height: 1.9;
  color: rgba(247, 244, 236, .62);
}

/* ---------- 11. 课程 ---------- */
.courses { background: var(--paper); }

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.course-card {
  position: relative;
  padding: 34px 30px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .55);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease),
              border-color .5s var(--ease), background-color .5s var(--ease);
}

.course-card:hover {
  transform: translateY(-6px);
  border-color: rgba(47, 107, 79, .3);
  background: var(--white);
  box-shadow: var(--shadow);
}

.course-no {
  display: block;
  margin-bottom: 18px;
  font-family: var(--font-serif);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--gold);
  opacity: .85;
}

.course-card h3 {
  font-family: var(--font-serif);
  font-size: 1.42rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink);
}

.course-jp {
  margin: 8px 0 16px;
  font-family: var(--font-jp);
  font-size: .86rem;
  letter-spacing: .1em;
  color: var(--green-500);
}

.course-card p:not(.course-jp) {
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.95;
}

/* ---------- 12. 教师团队 ---------- */
.teachers { background: var(--paper-2); }

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.teacher-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  overflow: hidden;
  text-align: left;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease),
              border-color .5s var(--ease);
}

.teacher-card:hover {
  transform: translateY(-5px);
  border-color: rgba(47, 107, 79, .3);
  box-shadow: var(--shadow);
}

.teacher-photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  object-position: center;
  background: #e7e2d4;
}

.teacher-body {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 16px 20px;
}

.teacher-name {
  font-family: var(--font-serif);
  font-size: 1.14rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--ink);
}

.teacher-title {
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.teacher-summary {
  display: -webkit-box;
  margin-top: 4px;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--muted);
}

/* 教师详情弹窗 */
.teacher-modal {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(9, 19, 14, .66);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  overflow-y: auto;
  animation: fade-in .3s var(--ease);
}

.teacher-modal-panel {
  position: relative;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  width: min(900px, 100%);
  max-height: 88vh;
  border-radius: var(--radius-lg);
  background: var(--paper);
  overflow: hidden;
  box-shadow: 0 40px 90px rgba(0, 0, 0, .4);
  animation: pop-in .4s var(--ease);
}

.teacher-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(247, 244, 236, .92);
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1;
  transition: background-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}

.teacher-modal-close:hover {
  background: var(--green-700);
  color: var(--paper);
  transform: rotate(90deg);
}

.teacher-modal-photo {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 320px;
  background: #e7e2d4;
}

.teacher-modal-photo img {
  width: 100%;
  height: 100%;
  max-height: 88vh;
  object-fit: contain;
}

.teacher-modal-body {
  padding: 46px 40px 40px;
  overflow-y: auto;
}

.teacher-modal-body .label { margin-bottom: 14px; }

.teacher-modal-body h2 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--ink);
}

.teacher-modal-title {
  margin-top: 6px;
  font-size: .82rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.teacher-modal-summary {
  margin-top: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  font-size: .98rem;
  line-height: 1.9;
  color: var(--ink);
}

.teacher-modal-bio {
  margin: 18px 0;
  font-size: .9rem;
  line-height: 2;
  color: var(--muted);
  white-space: pre-line;
}

.teacher-modal-jp {
  margin: 20px 0 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-jp);
  font-size: .88rem;
  line-height: 2.05;
  letter-spacing: .04em;
  color: var(--green-700);
  white-space: pre-line;
}

/* ---------- 13. 预约表单 ---------- */
.signup { background: var(--paper); }

.signup-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--radius-lg);
  background: var(--green-900);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.signup-copy {
  padding: 58px 52px;
  color: var(--paper);
}

.signup-copy .section-title {
  color: var(--paper);
  margin-bottom: 22px;
}

.signup-lead {
  max-width: 38ch;
  color: rgba(247, 244, 236, .72);
  font-size: .95rem;
  line-height: 2;
}

.contact-list {
  display: grid;
  gap: 16px;
  margin: 34px 0 0;
}

.contact-list > div {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  padding-top: 15px;
  border-top: 1px solid rgba(247, 244, 236, .16);
}

.contact-list dt {
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--gold-light);
  padding-top: 4px;
}

.contact-list dd {
  font-size: .88rem;
  line-height: 1.8;
  color: rgba(247, 244, 236, .86);
}

.signup-privacy {
  margin-top: 30px;
  font-size: .76rem;
  line-height: 1.85;
  color: rgba(247, 244, 236, .5);
}

.signup-form-wrap {
  margin: 22px;
  padding: 40px 38px;
  border-radius: var(--radius);
  background: var(--paper);
}

.lead-form {
  display: grid;
  gap: 18px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--ink);
}

.req { color: #b23b2e; }
.optional { color: var(--muted); font-weight: 400; font-size: .78rem; }

.field input[type="text"],
.field input[type="tel"],
.field textarea,
.select-wrap select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  color: var(--ink);
  font-size: .94rem;
  line-height: 1.5;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease),
              background-color .3s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}

.field input::placeholder,
.field textarea::placeholder { color: #a9ad9f; }

.field input[type="text"]:focus,
.field input[type="tel"]:focus,
.field textarea:focus,
.select-wrap select:focus {
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(47, 107, 79, .14);
  outline: none;
}

.field input.is-invalid,
.field textarea.is-invalid,
.field input[type="checkbox"].is-invalid {
  border-color: #b23b2e;
  background: #fdf4f1;
  box-shadow: 0 0 0 3px rgba(178, 59, 46, .1);
}

.field textarea { resize: vertical; min-height: 92px; }

.select-wrap { position: relative; }

.select-wrap select {
  padding-right: 42px;
  cursor: pointer;
}

.select-arrow {
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-52%);
  font-size: 1rem;
  color: var(--muted);
  pointer-events: none;
}

.field-error {
  margin-top: 6px;
  font-size: .78rem;
  line-height: 1.6;
  color: #b23b2e;
}

.field-error:empty { display: none; }

.field-check { margin-top: 2px; }

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--muted);
  cursor: pointer;
}

.checkbox input[type="checkbox"] {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
  accent-color: var(--green-500);
  cursor: pointer;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-note {
  font-size: .75rem;
  line-height: 1.75;
  color: var(--muted);
}

.form-status {
  font-size: .82rem;
  line-height: 1.7;
  color: #b23b2e;
  min-height: 1.4em;
}

.form-status.is-ok { color: var(--green-500); }

.form-success {
  padding: 46px 16px 30px;
  text-align: center;
}

.success-mark {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--green-100);
  color: var(--green-500);
}

.form-success h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: .04em;
}

.form-success p {
  max-width: 34ch;
  margin: 12px auto 22px;
  font-size: .88rem;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 14. 页脚 ---------- */
.site-footer {
  padding: 72px 0 44px;
  background: var(--green-900);
  color: rgba(247, 244, 236, .72);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1.25fr;
  gap: 48px;
}

.footer-brand .brand { margin-bottom: 20px; }

.footer-brand .brand-text strong { color: var(--paper); }
.footer-brand .brand-text small { color: rgba(201, 143, 62, .8); }

.footer-brand p {
  font-size: .86rem;
  line-height: 1.95;
  color: rgba(247, 244, 236, .6);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 8px;
}

.footer-nav a {
  font-size: .88rem;
  letter-spacing: .04em;
  color: rgba(247, 244, 236, .78);
  transition: color .3s var(--ease), transform .3s var(--ease);
}

.footer-nav a:hover {
  color: var(--gold-light);
  transform: translateX(4px);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 8px;
  font-size: .82rem;
}

.footer-small {
  font-size: .78rem;
  line-height: 1.8;
  color: rgba(247, 244, 236, .46);
}

.admin-link {
  color: rgba(247, 244, 236, .42);
  border-bottom: 1px solid rgba(247, 244, 236, .22);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

.admin-link:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 15. 移动端 CTA ---------- */
.mobile-cta {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 75;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  background: rgba(247, 244, 236, .96);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 -10px 30px rgba(18, 41, 31, .1);
  transform: translateY(120%);
  transition: transform .45s var(--ease), opacity .35s var(--ease);
  opacity: 0;
}

.mobile-cta.is-visible {
  transform: none;
  opacity: 1;
}

.mobile-cta-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
}

.mobile-cta-copy strong {
  font-family: var(--font-serif);
  font-size: .92rem;
  letter-spacing: .02em;
  color: var(--ink);
}

.mobile-cta-copy span {
  font-size: .72rem;
  color: var(--muted);
}

.mobile-cta .btn { flex: none; }

/* ---------- 16. 试听费弹窗 ---------- */
.fee-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(9, 19, 14, .68);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  overflow-y: auto;
  animation: fade-in .28s var(--ease);
}

.fee-panel {
  position: relative;
  width: min(470px, 100%);
  padding: 40px 36px 32px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .42);
  animation: pop-in .38s var(--ease);
}

.fee-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font-size: 1.3rem;
  line-height: 1;
  transition: background-color .3s var(--ease), color .3s var(--ease);
}

.fee-close:hover { background: var(--green-700); color: var(--paper); }

.fee-panel .label { margin-bottom: 12px; }

.fee-panel h2 {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--ink);
}

.fee-lead {
  margin-top: 14px;
  font-size: .92rem;
  line-height: 1.9;
  color: var(--muted);
}

.fee-notice {
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  background: var(--green-100);
  font-size: .84rem;
  line-height: 1.85;
  color: var(--green-700);
}

.fee-notice strong { display: block; margin-bottom: 2px; }

.fee-list {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
}

.fee-list > div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 0;
  border-top: 1px dashed var(--line);
  font-size: .84rem;
}

.fee-list dt { flex: none; color: var(--muted); letter-spacing: .06em; }
.fee-list dd { text-align: right; color: var(--ink); }

.fee-actions {
  display: grid;
  gap: 8px;
  justify-items: center;
  margin-top: 26px;
}

/* ---------- 17. 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 130;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 30px 22px;
  background: rgba(6, 12, 9, .95);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  animation: fade-in .28s var(--ease);
}

.lb-figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  max-width: 100%;
  margin: 0;
  min-width: 0;
}

.lb-figure img {
  max-width: 100%;
  max-height: 76vh;
  width: auto;
  border-radius: 6px;
  object-fit: contain;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .5);
}

.lb-figure figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 28px;
  width: 100%;
  max-width: 900px;
  font-size: .86rem;
}

.lb-caption {
  color: rgba(247, 244, 236, .82);
  line-height: 1.7;
  letter-spacing: .03em;
}

.lb-counter {
  flex: none;
  font-family: var(--font-serif);
  font-size: .82rem;
  letter-spacing: .16em;
  color: var(--gold-light);
}

.lb-close {
  position: absolute;
  top: 18px;
  right: 20px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(247, 244, 236, .28);
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
  color: var(--paper);
  font-size: 1.4rem;
  line-height: 1;
  transition: background-color .3s var(--ease), transform .3s var(--ease);
}

.lb-close:hover { background: rgba(255, 255, 255, .16); transform: rotate(90deg); }

.lb-nav {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  padding: 0;
  border: 1px solid rgba(247, 244, 236, .28);
  border-radius: 50%;
  background: rgba(255, 255, 255, .04);
  color: var(--paper);
  font-size: 1.7rem;
  line-height: 1;
  transition: background-color .3s var(--ease), border-color .3s var(--ease),
              transform .3s var(--ease);
}

.lb-nav:hover {
  background: rgba(201, 143, 62, .2);
  border-color: var(--gold);
  transform: scale(1.06);
}

.lb-prev { justify-self: start; }
.lb-next { justify-self: end; }

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pop-in {
  from { opacity: 0; transform: translateY(16px) scale(.985); }
  to { opacity: 1; transform: none; }
}

/* ---------- 18. 响应式：1080px ---------- */
@media (max-width: 1080px) {
  :root { --header-h: 68px; --section-y: 88px; }

  .container { padding: 0 24px; }
  .header-inner { padding: 0 24px; }
  .hero-inner { padding: 0 24px; }
  .hero-facts { padding: 0 24px 28px; gap: 0; }

  /* 移动导航抽屉 */
  .nav-toggle { display: block; }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 95;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: min(360px, 86vw);
    height: 100vh;
    height: 100svh;
    padding: calc(var(--header-h) + 22px) 30px 40px;
    background: var(--paper);
    box-shadow: -24px 0 60px rgba(18, 41, 31, .18);
    transform: translateX(102%);
    visibility: hidden;
    overflow-y: auto;
    transition: transform .45s var(--ease), visibility .45s var(--ease);
  }

  .nav.is-open {
    transform: none;
    visibility: visible;
  }

  .nav > a:not(.btn) {
    width: 100%;
    padding: 16px 2px;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
    color: var(--ink);
    letter-spacing: .08em;
  }

  .nav > a:not(.btn)::after { display: none; }
  .nav > a:not(.btn):hover { color: var(--green-500); transform: translateX(3px); }

  .nav .btn {
    width: 100%;
    margin-top: 24px;
    padding: 13px 20px;
  }

  .site-header.is-scrolled .nav > a:not(.btn) { color: var(--ink); }

  /* 首屏 */
  .hero { padding-top: calc(var(--header-h) + 60px); }
  .hero-facts {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 56px;
    row-gap: 4px;
  }
  .fact { padding: 18px 20px 6px; }
  .fact:nth-child(odd) { border-left: none; padding-left: 0; }
  .fact:nth-child(3) { border-top-color: rgba(247, 244, 236, .14); }

  .scroll-cue { display: none; }

  /* 关于 */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* 研学 */
  .shaoxing-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .shaoxing-collage { max-width: 640px; }
  .vertical-note { display: none; }

  /* 视频 / 课程 */
  .video-grid,
  .course-grid { grid-template-columns: repeat(2, 1fr); }

  .teacher-grid { grid-template-columns: repeat(3, 1fr); }

  /* 预约 */
  .signup-panel { grid-template-columns: 1fr; }
  .signup-copy { padding: 44px 40px 10px; }
  .signup-form-wrap { margin: 26px 26px 26px; padding: 34px 32px; }
}

/* ---------- 19. 响应式：760px ---------- */
@media (max-width: 760px) {
  :root { --section-y: 68px; }

  body { font-size: 15px; line-height: 1.75; }

  .container { padding: 0 20px; }
  .header-inner { padding: 0 18px; }
  .hero-inner { padding: 0 20px; }
  .hero-facts { padding: 0 20px 24px; }

  .brand-mark { width: 38px; height: 38px; font-size: 1.05rem; }
  .brand-text strong { font-size: .98rem; letter-spacing: .12em; }
  .brand-text small { font-size: .5rem; letter-spacing: .16em; }

  .br-desktop { display: none; }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 32px;
  }

  .section-title { font-size: clamp(1.7rem, 7vw, 2.2rem); line-height: 1.3; }
  .label { margin-bottom: 14px; font-size: .72rem; }
  .section-intro { font-size: .92rem; }

  /* 首屏 */
  .hero {
    min-height: 92vh;
    min-height: 92svh;
    padding-top: calc(var(--header-h) + 48px);
  }
  .hero-img { object-position: center 38%; }
  .hero-title { font-size: clamp(2.3rem, 11vw, 3.1rem); line-height: 1.16; }
  .hero-sub { margin-top: 20px; font-size: .92rem; line-height: 1.95; }
  .hero-actions { margin-top: 28px; gap: 10px; }
  .hero-actions .btn { flex: 1 1 46%; padding: 13px 18px; font-size: .88rem; }
  .hero-facts { margin-top: 40px; padding-bottom: 20px; }
  .fact-k { font-size: .92rem; }
  .fact-v { font-size: .72rem; }

  .marquee { padding: 12px 0; }
  .marquee-track span { font-size: .84rem; letter-spacing: .16em; }

  /* 关于 */
  .about-grid { gap: 30px; }
  .lead { font-size: 1rem; }
  .feature-list { margin-top: 32px; }
  .feature-list li { padding: 18px 2px; gap: 14px; }
  .feature-no { min-width: 30px; font-size: 1.04rem; }

  /* 图库 */
  .filters {
    gap: 8px;
    margin-bottom: 22px;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    scrollbar-width: none;
  }
  .filters::-webkit-scrollbar { display: none; }
  .filter { flex: none; padding: 8px 15px; font-size: .8rem; }

  .gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .gallery-item { border-radius: 10px; }
  .gallery-cap { padding: 26px 10px 10px; }
  .gallery-cap strong { font-size: .8rem; }
  .gallery-cap small { font-size: .68rem; -webkit-line-clamp: 1; }
  .gallery-more-wrap { margin-top: 28px; }
  .gallery-more { padding: 11px 24px; font-size: .82rem; }

  /* 研学 */
  .shaoxing-grid { gap: 40px; }
  .shaoxing-collage { padding-bottom: 42px; }
  .collage-small {
    right: -6px;
    width: 46%;
    border-width: 6px;
  }
  .collage-stamp {
    top: -14px;
    left: -8px;
    width: 52px;
    height: 52px;
    font-size: 1.15rem;
  }
  .quote-jp { font-size: 1.1rem; }

  /* 视频 / 课程 */
  .video-grid,
  .course-grid { grid-template-columns: 1fr; gap: 16px; }
  .video-empty { padding: 38px 22px; }
  .course-card { padding: 26px 22px; }

  /* 教师 */
  .teacher-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .teacher-body { padding: 12px 12px 16px; }
  .teacher-name { font-size: 1rem; }
  .teacher-summary { font-size: .78rem; }

  .teacher-modal { padding: 0; place-items: stretch; }
  .teacher-modal-panel {
    grid-template-columns: 1fr;
    width: 100%;
    max-height: 100vh;
    max-height: 100svh;
    border-radius: 0;
    overflow-y: auto;
  }
  .teacher-modal-photo { min-height: 0; }
  .teacher-modal-photo img { max-height: 44vh; }
  .teacher-modal-body { padding: 28px 22px 40px; overflow-y: visible; }
  .teacher-modal-body h2 { font-size: 1.5rem; }
  .teacher-modal-close { position: fixed; top: 14px; right: 14px; }

  /* 预约 */
  .signup-panel { border-radius: var(--radius); }
  .signup-copy { padding: 32px 22px 4px; }
  .signup-copy .section-title { font-size: 1.6rem; }
  .signup-lead { font-size: .88rem; line-height: 1.9; }
  .contact-list { gap: 12px; margin-top: 26px; }
  .contact-list > div { grid-template-columns: 48px 1fr; gap: 10px; padding-top: 12px; }
  .contact-list dt { font-size: .7rem; }
  .contact-list dd { font-size: .82rem; }
  .signup-privacy { margin-top: 22px; font-size: .72rem; }
  .signup-form-wrap { margin: 20px 16px 16px; padding: 24px 18px; }
  .lead-form { gap: 15px; }
  .form-success { padding: 30px 8px 18px; }

  /* 页脚 */
  .site-footer { padding: 48px 0 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 20px;
    padding-top: 0;
  }
  .footer-brand .brand { margin-bottom: 14px; }

  /* 移动 CTA */
  .mobile-cta { display: flex; }

  /* 灯箱 */
  .lightbox {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 18px;
    padding: 18px 14px;
  }
  .lb-figure img { max-height: 66vh; }
  .lb-figure figcaption {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    font-size: .8rem;
  }
  .lb-nav {
    position: absolute;
    bottom: 22px;
    width: 44px;
    height: 44px;
    font-size: 1.4rem;
  }
  .lb-prev { left: 18px; }
  .lb-next { right: 18px; }
  .lb-close { top: 12px; right: 12px; width: 38px; height: 38px; }

  /* 试听费 */
  .fee-modal { padding: 16px; place-items: center; }
  .fee-panel { padding: 32px 22px 24px; max-height: 92vh; overflow-y: auto; }
  .fee-panel h2 { font-size: 1.32rem; }
  .fee-list > div { font-size: .8rem; }
}

@media (max-width: 420px) {
  .gallery { grid-template-columns: 1fr; }
  .gallery-item { aspect-ratio: 4 / 3; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-facts { grid-template-columns: 1fr; }
  .fact { padding-left: 0; border-left: none; }
  .teacher-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 20. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }

  html.js .reveal {
    opacity: 1;
    transform: none;
  }

  .marquee-track { animation: none; }
  .scroll-cue-line { animation: none; }
  .hero-img { transform: none !important; }
}