/* ============================================================
   融睦教育 · RONG MU EDUCATION
   调解员助理培训 —— 站点样式
   ============================================================ */

/* ---------- 0. Anchor offset ---------- */
[id] { scroll-margin-top: 110px; }

/* ---------- 1. Tokens ---------- */
:root {
  --ink-900: #071619;
  --ink-800: #0a2023;
  --ink-700: #102b2e;
  --ink-600: #17383a;

  --paper:   #f7f2e8;
  --paper-2: #efe7d8;
  --ivory:   #f4eee3;
  --ivory-2: #e6dccb;

  --jade:    #2f6a62;
  --jade-lt: #6fa79b;
  --gold:    #be9a63;
  --gold-lt: #d9c4a1;

  --ink:   #16262b;
  --muted: #5f6f6d;
  --line:  rgba(22, 38, 43, .16);
  --line-strong: rgba(22, 38, 43, .30);
  --line-light: rgba(244, 238, 227, .18);

  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans: "Inter", "Helvetica Neue", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;

  --pad: clamp(20px, 5vw, 64px);
  --max: 1280px;
  --ease: cubic-bezier(.19, .78, .23, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--gold); color: #0a1c1e; }

:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 4px;
}

/* scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #0a1c1e; }
::-webkit-scrollbar-thumb { background: #2a4447; border: 3px solid #0a1c1e; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #3a5a5c; }

/* ---------- 3. Type utilities ---------- */
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--pad); }
.serif { font-family: var(--serif); }

.eyebrow {
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .36em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 14px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .5;
  flex: none;
}
.eyebrow--light { color: rgba(244, 238, 227, .6); }
.eyebrow--light::before { background: var(--gold); opacity: .8; }

.en {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: rgba(244, 238, 227, .52);
}

.sec-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.34;
  letter-spacing: .015em;
  color: var(--ink);
}
.sec-title em { font-style: normal; color: var(--jade); }
.sec-title--light { color: var(--ivory); }
.sec-title--light em { color: var(--gold-lt); }

.lede { font-size: 16px; line-height: 2.05; color: var(--muted); }
.lede--light { color: rgba(244, 238, 227, .66); }

.hairline { height: 1px; background: var(--line); border: 0; }
.hairline--light { background: var(--line-light); }

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 15px 28px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: .1em;
  line-height: 1;
  white-space: nowrap;
  transition: background .5s var(--ease), color .5s var(--ease),
              border-color .5s var(--ease), transform .5s var(--ease);
  will-change: transform;
}
.btn svg { width: 14px; height: 14px; transition: transform .5s var(--ease); flex: none; }
.btn:hover svg { transform: translateX(4px); }

.btn--solid { background: var(--ivory); color: #0a1c1e; }
.btn--solid:hover { background: #fff; transform: translateY(-2px); }

.btn--dark { background: var(--ink-700); color: var(--ivory); }
.btn--dark:hover { background: var(--ink-600); transform: translateY(-2px); }

.btn--ghost {
  border: 1px solid rgba(244, 238, 227, .38);
  color: var(--ivory);
}
.btn--ghost:hover { border-color: var(--ivory); background: rgba(244, 238, 227, .07); }

.btn--ghost-dark { border: 1px solid var(--line-strong); color: var(--ink); }
.btn--ghost-dark:hover { border-color: var(--ink); }

.btn--sm { padding: 12px 22px; font-size: 12px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .14em;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color .4s var(--ease), color .4s var(--ease), gap .4s var(--ease);
}
.link-arrow svg { width: 13px; height: 13px; }
.link-arrow:hover { border-color: var(--gold); color: var(--jade); gap: 16px; }
.link-arrow--light { border-color: rgba(244, 238, 227, .32); color: var(--ivory); }
.link-arrow--light:hover { color: var(--gold-lt); border-color: var(--gold); }

/* ---------- 5. Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  color: var(--ivory);
  transition: background .6s var(--ease), backdrop-filter .6s var(--ease),
              border-color .6s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-solid {
  background: rgba(7, 22, 25, .78);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border-bottom-color: rgba(244, 238, 227, .1);
}

.announce {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 10.5px;
  letter-spacing: .22em;
  color: rgba(244, 238, 227, .72);
  height: 34px;
  border-bottom: 1px solid rgba(244, 238, 227, .1);
  overflow: hidden;
  transition: height .55s var(--ease), opacity .4s var(--ease);
}
.announce a { display: inline-flex; align-items: center; gap: 8px; }
.announce svg { width: 12px; height: 12px; transition: transform .4s var(--ease); }
.announce a:hover svg { transform: translateX(4px); }
.announce .dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(190, 154, 99, .16);
  flex: none;
}
.site-header.is-solid .announce { height: 0; opacity: 0; border-bottom-color: transparent; }

.nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 18px var(--pad);
  transition: padding .55s var(--ease);
  max-width: calc(var(--max) + 2 * var(--pad));
  margin-inline: auto;
}
.site-header.is-solid .nav { padding-block: 13px; }

/* brand */
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand__mark { width: 40px; height: 22px; color: var(--ivory); flex: none; }
.brand__mark path { stroke: currentColor; }
.brand__text { display: flex; flex-direction: column; gap: 4px; line-height: 1; }
.brand__cn {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: .2em;
  color: var(--ivory);
  white-space: nowrap;
}
.brand__en {
  font-size: 7.5px;
  letter-spacing: .3em;
  color: rgba(244, 238, 227, .5);
  text-transform: uppercase;
  white-space: nowrap;
}

.nav__links { display: flex; align-items: center; gap: clamp(18px, 2.6vw, 40px); }
.nav__links a {
  position: relative;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: rgba(244, 238, 227, .74);
  padding: 6px 0;
  transition: color .4s var(--ease);
  white-space: nowrap;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.nav__links a:hover { color: var(--ivory); }
.nav__links a:hover::after,
.nav__links a.is-current::after { transform: scaleX(1); }
.nav__links a.is-current { color: var(--ivory); }

.nav__end { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }

.burger {
  display: none;
  width: 42px; height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.burger span {
  display: block;
  width: 20px; height: 1px;
  background: var(--ivory);
  transition: transform .4s var(--ease), opacity .3s var(--ease);
}
body.nav-open .burger span:nth-child(1) { transform: translateY(3px) rotate(45deg); }
body.nav-open .burger span:nth-child(2) { transform: translateY(-3px) rotate(-45deg); }

/* mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: #08191c;
  padding: 120px var(--pad) 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity .5s var(--ease), transform .6s var(--ease), visibility .5s;
}
body.nav-open .drawer { opacity: 1; visibility: visible; transform: none; }
.drawer__links { display: flex; flex-direction: column; }
.drawer__links a {
  font-family: var(--serif);
  font-size: 30px;
  color: var(--ivory);
  padding: 18px 0;
  border-bottom: 1px solid rgba(244, 238, 227, .1);
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.drawer__links a small {
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: .3em;
  color: rgba(244, 238, 227, .35);
}
.drawer__foot { display: flex; flex-direction: column; gap: 16px; }

/* ---------- 6. Hero scene ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #06161a;
  color: var(--ivory);
  isolation: isolate;
}
.hero__bg { position: absolute; inset: 0; z-index: -3; }

.hero__bg::before {
  content: "";
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(90% 70% at 76% 6%, rgba(216, 175, 116, .34), transparent 58%),
    radial-gradient(80% 80% at 8% 96%, rgba(28, 92, 86, .55), transparent 62%),
    radial-gradient(60% 60% at 42% 46%, rgba(20, 74, 72, .35), transparent 70%),
    linear-gradient(168deg, #0d2a2d 0%, #0a2023 42%, #051316 100%);
  transform: scale(1.04);
  animation: hero-breathe 22s ease-in-out infinite alternate;
}
@keyframes hero-breathe {
  from { transform: scale(1.04) translate3d(-1%, 0, 0); }
  to   { transform: scale(1.12) translate3d(1.5%, -1.5%, 0); }
}

/* soft moving light pools */
.hero__glow {
  position: absolute;
  width: 62vw; height: 62vw;
  max-width: 900px; max-height: 900px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
  background: radial-gradient(circle at center, rgba(214, 172, 110, .30), transparent 65%);
  top: -18%; right: -8%;
  animation: glow-drift 26s ease-in-out infinite alternate;
  z-index: -2;
}
.hero__glow:nth-of-type(2) {
  top: auto; right: auto;
  left: -22%; bottom: -28%;
  width: 70vw; height: 70vw;
  background: radial-gradient(circle at center, rgba(42, 118, 108, .34), transparent 66%);
  animation: glow-drift-2 32s ease-in-out infinite alternate;
}
@keyframes glow-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-6%, 8%, 0) scale(1.16); }
}
@keyframes glow-drift-2 {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(8%, -6%, 0) scale(1.1); }
}

/* light rays */
.hero__rays {
  position: absolute;
  inset: -30% -10% auto auto;
  width: 90%; height: 130%;
  background: repeating-linear-gradient(
    108deg,
    rgba(226, 198, 156, 0) 0px,
    rgba(226, 198, 156, .05) 2px,
    rgba(226, 198, 156, .10) 3px,
    rgba(226, 198, 156, 0) 42px,
    rgba(226, 198, 156, 0) 96px
  );
  -webkit-mask-image: radial-gradient(60% 55% at 72% 18%, #000 0%, transparent 78%);
  mask-image: radial-gradient(60% 55% at 72% 18%, #000 0%, transparent 78%);
  opacity: .8;
  animation: rays-shift 30s ease-in-out infinite alternate;
  z-index: -2;
  pointer-events: none;
}
@keyframes rays-shift {
  from { transform: translate3d(0, 0, 0) rotate(0deg); opacity: .55; }
  to   { transform: translate3d(-3%, 2%, 0) rotate(1.6deg); opacity: .9; }
}

/* caustics (svg turbulence) */
.hero__caustics {
  position: absolute;
  inset: -20%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='700' height='700'%3E%3Cfilter id='c'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.006 0.013' numOctaves='4' seed='7' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='700' height='700' filter='url(%23c)' opacity='.55'/%3E%3C/svg%3E");
  background-size: 700px 700px;
  mix-blend-mode: overlay;
  opacity: .32;
  animation: caustic-drift 44s linear infinite alternate;
  z-index: -2;
  pointer-events: none;
}
@keyframes caustic-drift {
  from { transform: translate3d(-2%, -1%, 0) scale(1.05); }
  to   { transform: translate3d(2%, 2%, 0) scale(1.14); }
}

/* grain */
.hero__grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
  opacity: .5;
  mix-blend-mode: soft-light;
  z-index: -1;
  pointer-events: none;
}
.hero__vignette {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 50% 40%, transparent 40%, rgba(3, 12, 14, .55) 100%),
    linear-gradient(to bottom, rgba(4, 14, 16, .45) 0%, transparent 24%, transparent 62%, rgba(4, 14, 16, .75) 100%);
  pointer-events: none;
}

/* optional hero video (assets/media/hero.mp4) */
.hero__video {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.6s var(--ease);
  filter: saturate(.86) brightness(.72) contrast(1.04);
  pointer-events: none;
}
.hero.has-video .hero__video { opacity: .9; }
.hero.has-video .hero__bg::before { opacity: .7; }
.hero.has-video .hero__caustics { opacity: .12; }

/* hero content */
.hero__inner {
  position: relative;
  width: 100%;
  padding-top: clamp(140px, 18vh, 190px);
  padding-bottom: clamp(120px, 16vh, 160px);
}
.hero__content { max-width: 760px; }

.hero__kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 11px;
  letter-spacing: .3em;
  color: rgba(244, 238, 227, .78);
  margin-bottom: clamp(22px, 3vw, 34px);
}
.hero__kicker::before {
  content: "";
  width: 34px; height: 1px;
  background: var(--gold);
  opacity: .85;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(46px, 7.6vw, 100px);
  line-height: 1.12;
  letter-spacing: .03em;
  color: var(--ivory);
  text-wrap: balance;
}
.hero h1 .line-2 { color: #e3d2b6; display: block; }

.hero__en {
  margin-top: 26px;
  font-size: 9.5px;
  letter-spacing: .5em;
  text-transform: uppercase;
  color: rgba(244, 238, 227, .48);
}
.hero__lede {
  margin-top: 24px;
  max-width: 480px;
  font-size: 15.5px;
  line-height: 2.1;
  color: rgba(244, 238, 227, .72);
}
.hero__actions {
  margin-top: clamp(32px, 4vw, 46px);
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 40px);
  flex-wrap: wrap;
}

.play {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: rgba(244, 238, 227, .8);
  transition: color .4s var(--ease);
}
.play__ic {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(244, 238, 227, .34);
  display: grid;
  place-items: center;
  transition: border-color .4s var(--ease), background .4s var(--ease), transform .4s var(--ease);
}
.play:hover { color: var(--ivory); }
.play:hover .play__ic { border-color: var(--gold); background: rgba(190, 154, 99, .12); transform: scale(1.06); }
.play svg { width: 11px; height: 11px; margin-left: 2px; fill: currentColor; }

/* hero footer */
.hero__foot {
  position: absolute;
  left: 0; right: 0; bottom: clamp(20px, 3vh, 34px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  z-index: 2;
}
.live {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 10px;
  letter-spacing: .3em;
  color: rgba(244, 238, 227, .7);
  text-transform: uppercase;
}
.live__ic {
  width: 34px; height: 34px;
  border: 1px solid rgba(244, 238, 227, .28);
  border-radius: 50%;
  display: grid;
  place-items: center;
  gap: 3px;
  grid-auto-flow: column;
  transition: border-color .4s var(--ease), background .4s var(--ease);
}
.live:hover .live__ic { border-color: var(--ivory); background: rgba(244, 238, 227, .06); }
.live__ic i { display: block; width: 1.5px; height: 9px; background: rgba(244, 238, 227, .85); }
body.is-paused .live__ic i { width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 8px solid rgba(244, 238, 227, .85); }

.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 9.5px;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: rgba(244, 238, 227, .6);
}
.scroll-cue svg { width: 12px; height: 16px; animation: cue 2.4s var(--ease) infinite; }
@keyframes cue {
  0%, 100% { transform: translateY(-2px); opacity: .5; }
  50% { transform: translateY(4px); opacity: 1; }
}

body.is-paused .hero__bg::before,
body.is-paused .hero__glow,
body.is-paused .hero__rays,
body.is-paused .hero__caustics,
body.is-paused .scroll-cue svg { animation-play-state: paused; }

/* hero side caption */
.hero__aside {
  position: absolute;
  right: var(--pad);
  bottom: clamp(96px, 15vh, 160px);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  color: rgba(244, 238, 227, .4);
}
.hero__aside span {
  writing-mode: vertical-rl;
  font-size: 10px;
  letter-spacing: .34em;
  line-height: 1;
}
.hero__aside .en { writing-mode: vertical-rl; font-size: 8.5px; letter-spacing: .34em; color: rgba(190, 154, 99, .62); }
.hero__aside i {
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, transparent, rgba(190, 154, 99, .7), transparent);
}

/* ---------- 7. Sections ---------- */
.section { position: relative; padding: clamp(84px, 10vw, 148px) 0; }
.section--tight { padding: clamp(64px, 7vw, 100px) 0; }
.section--paper { background: var(--paper); }
.section--paper-2 { background: var(--paper-2); }
.section--dark { background: var(--ink-900); color: var(--ivory); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.section-head__l { max-width: 620px; }
.section-head .eyebrow { margin-bottom: 22px; }

.index-num {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: .32em;
  color: var(--muted);
}

/* split intro */
.split {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(36px, 6vw, 100px);
  align-items: start;
}
.split__aside { position: sticky; top: 140px; }
.split__body p + p { margin-top: 22px; }
.split__body .lede { max-width: 560px; }

/* principles row */
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 56px);
  margin-top: clamp(44px, 6vw, 76px);
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.principle h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  color: var(--ink);
  margin: 14px 0 12px;
}
.principle p {
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 330px;
}

/* entry list (landing page) */
.entries { border-top: 1px solid var(--line); }
.entry {
  display: grid;
  grid-template-columns: 64px minmax(170px, .85fr) minmax(0, 1.25fr) 52px;
  gap: clamp(18px, 3vw, 48px);
  align-items: center;
  padding: clamp(26px, 3vw, 38px) 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .55s var(--ease), background .55s var(--ease);
}
.entry:hover { padding-left: 12px; }
.entry__idx {
  align-self: start;
  padding-top: 12px;
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--gold);
}
.entry__main h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(23px, 2.5vw, 33px);
  line-height: 1.25;
  color: var(--ink);
  transition: color .5s var(--ease);
}
.entry:hover .entry__main h3 { color: var(--jade); }
.entry__en {
  display: block;
  margin-top: 9px;
  font-size: 9px;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--muted);
}
.entry p {
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 480px;
}
.entry__go {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: grid;
  place-items: center;
  justify-self: end;
  transition: background .5s var(--ease), border-color .5s var(--ease),
              color .5s var(--ease), transform .5s var(--ease);
}
.entry__go svg { width: 14px; height: 14px; }
.entry:hover .entry__go {
  background: var(--ink-700);
  border-color: var(--ink-700);
  color: var(--ivory);
  transform: translateX(5px);
}
.entry-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: clamp(36px, 4.5vw, 60px);
  font-size: 13px;
  color: var(--muted);
}

/* stats */.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(24px, 4vw, 56px);
  padding-top: clamp(36px, 4vw, 56px);
  border-top: 1px solid var(--line-light);
}
.stat__num {
  font-family: var(--serif);
  font-size: clamp(38px, 4.6vw, 62px);
  line-height: 1;
  letter-spacing: .01em;
  color: var(--ivory);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.stat__num small { font-size: .42em; color: var(--gold-lt); letter-spacing: .1em; }
.stat__label {
  margin-top: 14px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: rgba(244, 238, 227, .56);
  line-height: 1.7;
}
.stat__en { margin-top: 6px; font-size: 8.5px; letter-spacing: .28em; color: rgba(244, 238, 227, .3); text-transform: uppercase; }

/* course cards */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.course-card {
  position: relative;
  background: var(--paper);
  padding: clamp(26px, 2.6vw, 38px);
  min-height: 330px;
  display: flex;
  flex-direction: column;
  transition: background .6s var(--ease), color .6s var(--ease), transform .6s var(--ease);
  overflow: hidden;
}
.course-card__idx {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: .28em;
  color: var(--gold);
  margin-bottom: 30px;
}
.course-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(21px, 1.7vw, 25px);
  line-height: 1.45;
  color: var(--ink);
  transition: color .6s var(--ease);
}
.course-card__en {
  margin-top: 8px;
  font-size: 8.5px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color .6s var(--ease);
}
.course-card p {
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--muted);
  transition: color .6s var(--ease);
}
.course-card__meta {
  margin-top: auto;
  padding-top: 22px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  transition: color .6s var(--ease);
}
.course-card::after {
  content: "↗";
  position: absolute;
  top: 26px; right: 28px;
  font-size: 14px;
  color: var(--muted);
  opacity: 0;
  transform: translate(-6px, 6px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.course-card:hover { background: var(--ink-800); transform: translateY(-1px); z-index: 1; }
.course-card:hover h3 { color: var(--ivory); }
.course-card:hover p,
.course-card:hover .course-card__meta,
.course-card:hover .course-card__en { color: rgba(244, 238, 227, .6); }
.course-card:hover::after { opacity: 1; transform: none; color: var(--gold-lt); }

/* path timeline */
.path {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(18px, 2.6vw, 36px);
  counter-reset: step;
}
.path__item {
  position: relative;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.path__item::before {
  content: "";
  position: absolute;
  top: -3.5px; left: 0;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold);
}
.path__item h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 10px;
}
.path__item p { font-size: 13px; line-height: 1.9; color: var(--muted); }
.path__step {
  display: block;
  font-size: 9.5px;
  letter-spacing: .3em;
  color: var(--muted);
  margin-bottom: 16px;
  text-transform: uppercase;
}

/* mentors */
.mentors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(28px, 4vw, 56px);
}
.mentor__ava {
  width: 92px; height: 92px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 30px;
  color: var(--gold-lt);
  border: 1px solid rgba(244, 238, 227, .2);
  background:
    radial-gradient(120% 120% at 30% 20%, rgba(111, 167, 155, .22), transparent 60%),
    rgba(255, 255, 255, .02);
  margin-bottom: 26px;
  transition: border-color .5s var(--ease), transform .6s var(--ease);
}
.mentor:hover .mentor__ava { border-color: var(--gold); transform: translateY(-4px); }
.mentor h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 21px;
  color: var(--ivory);
  letter-spacing: .06em;
}
.mentor__role { margin-top: 7px; font-size: 10.5px; letter-spacing: .16em; color: var(--gold-lt); }
.mentor p { margin-top: 14px; font-size: 13px; line-height: 1.95; color: rgba(244, 238, 227, .55); }

/* quotes */
.quotes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 64px);
}
.quote { position: relative; padding-top: 34px; border-top: 1px solid var(--line); }
.quote::before {
  content: "“";
  position: absolute;
  top: 6px; left: -4px;
  font-family: var(--serif);
  font-size: 54px;
  line-height: 1;
  color: var(--gold);
  opacity: .5;
}
.quote blockquote {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 2.05;
  color: var(--ink);
}
.quote figcaption {
  margin-top: 24px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}
.quote figcaption span { color: var(--gold); margin-left: 8px; }

/* CTA band */
.cta {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--ivory);
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 120% at 82% 10%, rgba(190, 154, 99, .22), transparent 60%),
    radial-gradient(60% 100% at 8% 100%, rgba(47, 106, 98, .35), transparent 62%);
  pointer-events: none;
}
.cta__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 48px;
  align-items: end;
  padding: clamp(72px, 9vw, 120px) 0;
}
.cta h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 1.3;
}
.cta p { margin-top: 20px; max-width: 460px; }
.cta__actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }

/* ---------- 8. Footer ---------- */
.site-footer {
  background: #051215;
  color: rgba(244, 238, 227, .62);
  padding: clamp(56px, 7vw, 88px) 0 28px;
  border-top: 1px solid rgba(244, 238, 227, .08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .6fr .6fr .8fr;
  gap: clamp(32px, 5vw, 72px);
  padding-bottom: clamp(44px, 5vw, 64px);
}
.footer-brand .brand { margin-bottom: 22px; }
.footer-brand p { font-size: 13px; line-height: 2; max-width: 300px; color: rgba(244, 238, 227, .48); }
.footer-col h5 {
  font-size: 10px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: rgba(244, 238, 227, .4);
  margin-bottom: 20px;
  font-weight: 500;
}
.footer-col a, .footer-col li {
  display: block;
  font-size: 13px;
  line-height: 2.2;
  color: rgba(244, 238, 227, .68);
  transition: color .4s var(--ease);
}
.footer-col a:hover { color: var(--gold-lt); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(244, 238, 227, .08);
  font-size: 11px;
  letter-spacing: .08em;
  color: rgba(244, 238, 227, .34);
}
.footer-bottom .en { color: rgba(244, 238, 227, .3); }

/* ---------- 9. Sub page hero ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  background: #06161a;
  color: var(--ivory);
  padding: clamp(150px, 20vh, 210px) 0 clamp(70px, 9vw, 110px);
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(70% 90% at 82% 0%, rgba(190, 154, 99, .2), transparent 58%),
    radial-gradient(60% 90% at 6% 100%, rgba(30, 88, 82, .38), transparent 62%),
    linear-gradient(170deg, #0c2629 0%, #081a1d 55%, #051215 100%);
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='.3'/%3E%3C/svg%3E");
  opacity: .4;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  letter-spacing: .26em;
  color: rgba(244, 238, 227, .42);
  text-transform: uppercase;
  margin-bottom: 30px;
}
.crumbs a:hover { color: var(--gold-lt); }
.page-hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 5.8vw, 78px);
  line-height: 1.2;
  letter-spacing: .03em;
  max-width: 880px;
}
.page-hero h1 em { font-style: normal; color: #e3d2b6; }
.page-hero__lede {
  margin-top: 26px;
  max-width: 560px;
  font-size: 15px;
  line-height: 2.1;
  color: rgba(244, 238, 227, .66);
}
.page-hero__en {
  margin-top: 22px;
  font-size: 9px;
  letter-spacing: .44em;
  text-transform: uppercase;
  color: rgba(244, 238, 227, .36);
}

/* ---------- 10. Course detail ---------- */
.tier {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 260px;
  gap: clamp(24px, 4vw, 64px);
  padding: clamp(36px, 4.6vw, 60px) 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.tier__num {
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1;
  color: var(--gold);
}
.tier__num small {
  display: block;
  margin-top: 12px;
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: .3em;
  color: var(--muted);
}
.tier h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.4;
  margin-bottom: 14px;
}
.tier__sub { font-size: 10px; letter-spacing: .3em; text-transform: uppercase; color: var(--muted); margin-bottom: 20px; }
.tier p { font-size: 14px; line-height: 2; color: var(--muted); }
.tier__list { margin-top: 26px; display: grid; gap: 10px; }
.tier__list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink);
}
.tier__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 11px;
  width: 8px; height: 1px;
  background: var(--gold);
}
.tier__side {
  border-left: 1px solid var(--line);
  padding-left: clamp(20px, 2.4vw, 32px);
  font-size: 12.5px;
}
.tier__side dl { margin: 0; display: grid; gap: 14px; }
.tier__side dt { font-size: 9.5px; letter-spacing: .26em; color: var(--muted); text-transform: uppercase; }
.tier__side dd { margin: 2px 0 0; font-family: var(--serif); font-size: 18px; color: var(--ink); }
.tier__side .price { color: var(--ink); }
.tier__side .price b { font-family: var(--serif); font-weight: 400; font-size: 26px; }

/* curriculum table */
.table-wrap { overflow-x: auto; border-top: 1px solid var(--line); }
.schedule {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: 13.5px;
}
.schedule th {
  text-align: left;
  font-weight: 500;
  font-size: 9.5px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.schedule td {
  padding: 20px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  vertical-align: top;
  line-height: 1.8;
}
.schedule td:first-child { font-family: var(--serif); font-size: 16px; white-space: nowrap; }
.schedule tr:hover td { background: rgba(47, 106, 98, .04); }
.schedule .muted { color: var(--muted); }
.schedule .nowrap { white-space: nowrap; }

/* guarantees */
.ga-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-light); border: 1px solid var(--line-light); }
.ga {
  padding: clamp(26px, 2.6vw, 36px);
  background: var(--ink-900);
  min-height: 190px;
}
.ga b {
  display: block;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 20px;
  color: var(--ivory);
  margin-bottom: 12px;
}
.ga span { font-size: 9.5px; letter-spacing: .26em; color: var(--gold-lt); display: block; margin-bottom: 18px; }
.ga p { font-size: 13px; line-height: 1.95; color: rgba(244, 238, 227, .55); }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0;
  text-align: left;
  font-family: var(--serif);
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--ink);
  transition: color .4s var(--ease);
}
.faq__q:hover { color: var(--jade); }
.faq__ic { position: relative; width: 16px; height: 16px; flex: none; }
.faq__ic::before, .faq__ic::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform .5s var(--ease), opacity .4s var(--ease);
}
.faq__ic::before { left: 0; top: 7.5px; width: 16px; height: 1px; }
.faq__ic::after { left: 7.5px; top: 0; width: 1px; height: 16px; }
.faq__item.is-open .faq__ic::after { transform: rotate(90deg); opacity: 0; }
.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .7s var(--ease);
}
.faq__a > div {
  padding: 0 0 28px;
  max-width: 820px;
  font-size: 14px;
  line-height: 2.05;
  color: var(--muted);
}

/* ---------- 11. About ---------- */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px); }
.value { padding-top: 26px; border-top: 1px solid var(--line); }
.value__en { font-size: 9px; letter-spacing: .3em; color: var(--gold); text-transform: uppercase; }
.value h3 { font-family: var(--serif); font-weight: 400; font-size: 26px; margin: 16px 0 14px; }
.value p { font-size: 13.5px; line-height: 2; color: var(--muted); }

.timeline { border-top: 1px solid var(--line); }
.tl-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: clamp(20px, 3vw, 48px);
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.tl-item .year {
  font-family: var(--serif);
  font-size: 24px;
  color: var(--gold);
  letter-spacing: .04em;
}
.tl-item h4 { font-family: var(--serif); font-weight: 400; font-size: 18px; margin-bottom: 8px; }
.tl-item p { font-size: 13.5px; line-height: 1.95; color: var(--muted); }

/* ---------- 12. Contact / form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.form-head { margin-bottom: 42px; }
.form-head h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(28px, 3.2vw, 40px); line-height: 1.35; }
.form-head p { margin-top: 14px; font-size: 14px; color: var(--muted); }

.notice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 18px;
  border: 1px solid rgba(190, 154, 99, .4);
  background: rgba(190, 154, 99, .07);
  font-size: 12.5px;
  line-height: 1.8;
  color: #7a5c2c;
  margin-bottom: 32px;
}
.notice svg { width: 15px; height: 15px; flex: none; margin-top: 3px; }
.notice[hidden] { display: none; }

.field { margin-bottom: 30px; position: relative; }
.field > label {
  display: block;
  font-size: 10px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  transition: color .4s var(--ease);
}
.field .req { color: var(--gold); margin-left: 4px; }
.field input, .field textarea, .field select {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 12px 2px 13px;
  font-family: var(--sans);
  font-size: 16.5px;
  color: var(--ink);
  transition: border-color .4s var(--ease), background .4s var(--ease);
  appearance: none;
}
.field textarea { resize: vertical; min-height: 132px; line-height: 1.9; padding-top: 10px; }
.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' fill='none' stroke='%235f6f6d' stroke-width='1.2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 26px;
  cursor: pointer;
}
.field input::placeholder, .field textarea::placeholder { color: rgba(95, 111, 109, .55); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-bottom-color: var(--gold);
  background: linear-gradient(to top, rgba(190, 154, 99, .07), transparent 70%);
}
.field:focus-within > label { color: var(--ink); }
.field__hint { margin-top: 8px; font-size: 11px; color: var(--muted); letter-spacing: .04em; }
.field__err {
  margin-top: 8px;
  font-size: 11.5px;
  color: #a04a33;
  display: none;
  letter-spacing: .04em;
}
.field.has-error input, .field.has-error textarea { border-bottom-color: #b45a42; }
.field.has-error .field__err { display: block; }

.check {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
  cursor: pointer;
  margin-bottom: 34px;
}
.check input { position: absolute; opacity: 0; width: 0; height: 0; }
.check__box {
  width: 16px; height: 16px;
  border: 1px solid var(--line-strong);
  flex: none;
  margin-top: 3px;
  display: grid;
  place-items: center;
  transition: background .3s, border-color .3s;
}
.check__box svg { width: 10px; height: 10px; opacity: 0; color: var(--paper); transition: opacity .2s; }
.check input:checked + .check__box { background: var(--jade); border-color: var(--jade); }
.check input:checked + .check__box svg { opacity: 1; }
.check input:focus-visible + .check__box { outline: 1px solid var(--gold); outline-offset: 3px; }
.check a { color: var(--jade); border-bottom: 1px solid rgba(47, 106, 98, .4); }

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

.form-actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.form-actions .btn[disabled] { opacity: .55; pointer-events: none; }
.form-note { font-size: 11px; color: var(--muted); letter-spacing: .04em; }

.form-status { margin-top: 18px; font-size: 13px; line-height: 1.8; min-height: 0; }
.form-status.is-err { color: #a04a33; }
.form-status.is-ok { color: var(--jade); }

/* success panel */
.form-success { display: none; }
.form-success.is-on { display: block; animation: fade-up .8s var(--ease) both; }
.form-success__ic {
  width: 62px; height: 62px;
  border-radius: 50%;
  border: 1px solid rgba(47, 106, 98, .4);
  display: grid;
  place-items: center;
  margin-bottom: 28px;
  background: rgba(47, 106, 98, .06);
  color: var(--jade);
}
.form-success__ic svg { width: 24px; height: 24px; }
.form-success h3 { font-family: var(--serif); font-weight: 400; font-size: 30px; margin-bottom: 14px; }
.form-success p { font-size: 14px; line-height: 2; color: var(--muted); max-width: 440px; }
.form-success__ref {
  margin-top: 26px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 18px;
  display: inline-block;
}
.form-success__ref b { color: var(--ink); letter-spacing: .1em; }
.form-success .link-arrow { margin-top: 30px; }

/* contact aside */
.aside-card {
  background: var(--ink-900);
  color: var(--ivory);
  padding: clamp(30px, 3.4vw, 46px);
  position: relative;
  overflow: hidden;
}
.aside-card::before {
  content: "";
  position: absolute;
  top: -40%; right: -40%;
  width: 90%; height: 120%;
  background: radial-gradient(circle, rgba(190, 154, 99, .18), transparent 65%);
  pointer-events: none;
}
.aside-card h3 { font-family: var(--serif); font-weight: 400; font-size: 24px; margin-bottom: 8px; position: relative; }
.aside-card .en { color: rgba(244, 238, 227, .36); margin-bottom: 30px; display: block; }
.aside-item { padding: 20px 0; border-top: 1px solid rgba(244, 238, 227, .12); position: relative; }
.aside-item dt { font-size: 9.5px; letter-spacing: .28em; text-transform: uppercase; color: rgba(244, 238, 227, .42); }
.aside-item dd { margin: 8px 0 0; font-size: 14px; color: var(--ivory); line-height: 1.8; }
.aside-item dd small { display: block; font-size: 11px; color: rgba(244, 238, 227, .42); margin-top: 4px; }

.steps-mini { margin-top: clamp(32px, 5vw, 64px); }
.steps-mini li {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
}
.steps-mini .n {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--gold);
  flex: none;
}
.steps-mini b { color: var(--ink); font-weight: 500; display: block; font-size: 14px; margin-bottom: 4px; }

/* ---------- 13. Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 26px, 0);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 14. Responsive ---------- */
@media (max-width: 1080px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .mentors { grid-template-columns: repeat(2, 1fr); }
  .ga-list { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .hero__aside { display: none; }
  .tier { grid-template-columns: 90px minmax(0, 1fr); }
  .tier__side { grid-column: 2; border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 22px; margin-top: 10px; }
  .tier__side dl { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 880px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav__links { display: none; }
  .nav__end .btn { display: none; }
  .burger { display: flex; }
  .split { grid-template-columns: 1fr; }
  .split__aside { position: static; }
  .entry { grid-template-columns: 1fr 46px; gap: 14px 18px; }
  .entry__idx { grid-column: 1 / -1; padding-top: 0; }
  .entry__main { grid-column: 1; }
  .entry__go { grid-column: 2; grid-row: 2; }
  .entry p { grid-column: 1 / -1; max-width: none; }
  .path { grid-template-columns: 1fr; gap: 0; }
  .path__item { padding: 26px 0 26px 26px; border-top: 1px solid var(--line); }
  .path__item::before { top: 34px; left: 0; }
  .quotes { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; gap: 26px; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta__inner { grid-template-columns: 1fr; align-items: start; }
  .cta__actions { justify-content: flex-start; }
  .tl-item { grid-template-columns: 100px minmax(0, 1fr); }
  .brand__cn { font-size: 16px; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .courses-grid { grid-template-columns: 1fr; }
  .course-card { min-height: 0; }
  .mentors { grid-template-columns: 1fr; }
  .ga-list { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col:last-child { grid-column: 1 / -1; }
  .hero__foot .scroll-cue span { display: none; }
  .hero__foot { justify-content: space-between; }
  .announce { font-size: 9.5px; letter-spacing: .12em; padding-inline: 12px; }
  .tier { grid-template-columns: 1fr; gap: 18px; }
  .tier__side { grid-column: 1; }
  .tier__num small { display: inline; margin-left: 8px; }
  .tier__side dl { grid-template-columns: repeat(2, 1fr); }
  .drawer__links a { font-size: 26px; }
  .page-hero { padding-top: 130px; }
}

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

/* print */
@media print {
  .site-header, .drawer, .hero__foot, .scroll-cue, .cta { display: none; }
  body { background: #fff; color: #000; }
}

/* ============================================================
   15. 深色统一主题（全站同色）
   ============================================================ */
body.theme-dark {
  --paper: #08191c;
  --paper-2: #091c1f;
  --ink: #f4eee3;
  --muted: rgba(244, 238, 227, .62);
  --line: rgba(244, 238, 227, .12);
  --line-strong: rgba(244, 238, 227, .26);
  --jade: #6fa79b;
  background: var(--paper);
  color: var(--ink);
}

/* 输入、按钮、提示 */
.theme-dark .btn--dark { background: var(--ivory); color: #0a1c1e; }
.theme-dark .btn--dark:hover { background: #fff; }

.theme-dark .notice {
  color: #ddc8a5;
  background: rgba(190, 154, 99, .08);
  border-color: rgba(190, 154, 99, .3);
}

.theme-dark .field input::placeholder,
.theme-dark .field textarea::placeholder { color: rgba(244, 238, 227, .32); }

.theme-dark .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' fill='none' stroke='%23c9c0ae' stroke-width='1.2'/%3E%3C/svg%3E");
}
.theme-dark .field select option { background: #0a1f22; color: var(--ivory); }
.theme-dark .field input:focus,
.theme-dark .field textarea:focus,
.theme-dark .field select:focus { background: linear-gradient(to top, rgba(190, 154, 99, .1), transparent 72%); }

.theme-dark .field__err,
.theme-dark .form-status.is-err { color: #e2a48d; }

.theme-dark .form-success__ic {
  border-color: rgba(111, 167, 155, .42);
  background: rgba(111, 167, 155, .08);
  color: var(--jade);
}

.theme-dark .check__box { border-color: rgba(244, 238, 227, .34); }
.theme-dark .check a { color: var(--gold-lt); border-bottom-color: rgba(217, 196, 161, .4); }

.theme-dark .aside-card {
  background: #0b2225;
  border: 1px solid var(--line);
}
.theme-dark .aside-card::before { opacity: .7; }

.theme-dark .schedule tr:hover td { background: rgba(244, 238, 227, .035); }
.theme-dark .schedule th { border-bottom-color: var(--line); }

.theme-dark .entry:hover .entry__go {
  background: var(--ivory);
  border-color: var(--ivory);
  color: #0a1c1e;
}

.theme-dark .course-card { background: #0a1f22; }
.theme-dark .course-card:hover { background: #0d272b; }
.theme-dark .courses-grid { background: var(--line); border-color: var(--line); }

.theme-dark .values { border-top-color: var(--line); }
.theme-dark .value { border-top-color: var(--line); }
.theme-dark .quote { border-top-color: var(--line); }

.theme-dark .page-hero { border-bottom: 0; }

/* 让深色首屏与正文无缝衔接 */
.theme-dark .page-hero::before {
  background:
    linear-gradient(to bottom, rgba(8, 25, 28, 0) 76%, #08191c 100%),
    radial-gradient(70% 90% at 82% 0%, rgba(190, 154, 99, .2), transparent 58%),
    radial-gradient(60% 90% at 6% 100%, rgba(30, 88, 82, .3), transparent 62%),
    linear-gradient(170deg, #0c2629 0%, #091c1f 55%, #08191c 100%);
}
.theme-dark .hero__vignette {
  background:
    radial-gradient(120% 90% at 50% 40%, transparent 40%, rgba(3, 12, 14, .55) 100%),
    linear-gradient(to bottom, rgba(4, 14, 16, .45) 0%, transparent 24%, transparent 60%, rgba(8, 25, 28, .96) 100%);
}
.theme-dark .page-hero::after,
.theme-dark .hero__grain {
  -webkit-mask-image: linear-gradient(to bottom, #000 82%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 82%, transparent 100%);
}

.theme-dark .footer-bottom,
.theme-dark .site-footer { border-top-color: rgba(244, 238, 227, .08); }

/* ============================================================
   16. 页面转场 & 开屏动画（波浪幕布）
   ============================================================ */
html.js .curtain {
  position: fixed;
  inset: 0;
  z-index: 400;
  overflow: hidden;
  pointer-events: auto;
  cursor: pointer;
}
html.js .curtain.is-open { pointer-events: none; cursor: default; }

.curtain__panel {
  position: absolute;
  left: -25%;
  width: 150%;
  top: 100vh;
  height: 240vh;
  border-radius: 50% 50% 50% 50% / 10vh 10vh 10vh 10vh;
  transform: translate3d(0, 0, 0);
  transition: transform .62s cubic-bezier(.66, 0, .34, 1);
  will-change: transform;
}
.curtain__panel--ink {
  background: #061518;
  box-shadow:
    0 -2px 0 rgba(196, 162, 108, .55),
    0 -22px 64px rgba(190, 154, 99, .2),
    0 2px 0 rgba(196, 162, 108, .55),
    0 22px 64px rgba(190, 154, 99, .2);
}

html.js .curtain.is-covered .curtain__panel { transform: translate3d(0, -106vh, 0); }

html.js .curtain.is-open .curtain__panel {
  transform: translate3d(0, -345vh, 0);
  transition-duration: .85s;
}
html.js .curtain.no-anim .curtain__panel { transition: none !important; }

.curtain__brand {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: var(--ivory);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .55s var(--ease), transform .8s var(--ease);
}
html.js .curtain.is-brand .curtain__brand { opacity: 1; transform: none; }
html.no-intro .curtain__brand { transition: none; }
html.no-intro .curtain__mark path { animation: none; stroke-dashoffset: 0; }
html.js .curtain.no-draw .curtain__brand {
  opacity: 1;
  transform: none;
  transition: none;
}
html.js .curtain.is-open .curtain__brand {
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity .55s var(--ease), transform .8s var(--ease);
}

.curtain__mark { width: 66px; height: 37px; color: var(--gold); overflow: visible; }
.curtain__mark path {
  stroke: currentColor;
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
}
html.js .curtain.is-brand .curtain__mark path { animation: curtain-draw 1s var(--ease-out) forwards; }
html.js .curtain.is-brand .curtain__mark path:nth-child(2) { animation-delay: .16s; }
@keyframes curtain-draw { to { stroke-dashoffset: 0; } }
html.js .curtain.no-draw .curtain__mark path { animation: none; stroke-dashoffset: 0; }

.curtain__cn {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: .34em;
  text-indent: .34em;
}
.curtain__en {
  font-size: 8px;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: rgba(244, 238, 227, .42);
}

/* ---------- 内容入场 ---------- */
html.js body:not(.is-ready) .hero__content > *,
html.js body:not(.is-ready) .page-hero .wrap > *:not(.page-hero__bar) {
  opacity: 0;
  transform: translateY(22px);
}
html.js body.is-ready .hero__content > *,
html.js body.is-ready .page-hero .wrap > *:not(.page-hero__bar) {
  opacity: 1;
  transform: none;
  transition: opacity .95s var(--ease-out), transform .95s var(--ease-out);
}
html.js body.is-ready .hero__content > *:nth-child(2),
html.js body.is-ready .page-hero .wrap > *:nth-child(3) { transition-delay: .1s; }
html.js body.is-ready .hero__content > *:nth-child(3),
html.js body.is-ready .page-hero .wrap > *:nth-child(4) { transition-delay: .2s; }
html.js body.is-ready .hero__content > *:nth-child(4),
html.js body.is-ready .page-hero .wrap > *:nth-child(5) { transition-delay: .3s; }
html.js body.is-ready .hero__content > *:nth-child(5) { transition-delay: .4s; }
/* ============================================================
   17. 子页面返回按钮 + 顶部条
   ============================================================ */
.page-hero__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-hero__bar .crumbs { margin-bottom: 0; }

.back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px 9px 13px;
  border: 1px solid rgba(244, 238, 227, .24);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: .18em;
  color: rgba(244, 238, 227, .82);
  transition: color .4s var(--ease), border-color .4s var(--ease),
              background .4s var(--ease), transform .4s var(--ease);
}
.back svg { width: 14px; height: 14px; transition: transform .4s var(--ease); }
.back:hover {
  color: var(--ivory);
  border-color: var(--gold);
  background: rgba(190, 154, 99, .1);
  transform: translateX(-2px);
}
.back:hover svg { transform: translateX(-3px); }

@media (max-width: 640px) {
  .page-hero__bar { gap: 12px; }
  .page-hero__bar .crumbs { font-size: 9px; letter-spacing: .18em; }
  .back { padding: 8px 14px 8px 11px; font-size: 10px; }
  .curtain__cn { font-size: 15px; }
  .curtain__mark { width: 54px; height: 30px; }
  .page-hero h1 { font-size: clamp(31px, 9vw, 38px); }
}

/* 滚动后出现的悬浮返回按钮 */
.back-float {
  position: fixed;
  left: var(--pad);
  bottom: clamp(18px, 3vh, 30px);
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(244, 238, 227, .18);
  background: rgba(9, 27, 30, .82);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: rgba(244, 238, 227, .82);
  font-size: 11px;
  letter-spacing: .16em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .45s var(--ease), transform .45s var(--ease),
              visibility .45s, color .3s var(--ease), border-color .3s var(--ease);
}
body.is-scrolled .back-float { opacity: 1; visibility: visible; transform: none; }
.back-float:hover { color: var(--ivory); border-color: var(--gold); }
.back-float svg { width: 13px; height: 13px; }