/* ==========================================================================
   LINXIANG · 临湘 | "Where the Yangtze Meets Dongting"
   Editorial travel aesthetic: rice-paper cream, ink teal, cinnabar accent
   ========================================================================== */

:root {
  --paper:      #f4efe4;
  --paper-2:    #ebe3d3;
  --ink:        #1b2621;
  --ink-soft:   #3d4a43;
  --teal:       #1e4d47;
  --teal-2:     #2b6a61;
  --cinnabar:   #b23a2e;
  --cinnabar-2: #d0553f;
  --gold:       #b08a45;
  --line:       #d8cdb8;
  --shadow:     0 20px 50px -22px rgba(27,38,33,.45);

  --serif: "Noto Serif SC", "Songti SC", Georgia, serif;
  --display: "Cormorant Garamond", "Noto Serif SC", Georgia, serif;
  --sans: "Noto Sans SC", -apple-system, "Helvetica Neue", Arial, sans-serif;

  --maxw: 1200px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 1; opacity: .35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }

/* language toggle */
body.lang-en .zh { display: none !important; }
body.lang-zh .en { display: none !important; }

/* ==========================================================================
   TOPBAR
   ========================================================================== */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 28px;
  background: rgba(244,239,228,.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease), padding .4s var(--ease);
}
.topbar.scrolled { border-bottom-color: var(--line); padding: 10px 28px; }
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .mark {
  font-family: var(--display); font-weight: 700; font-size: 1.32rem;
  letter-spacing: .16em; color: var(--teal);
}
.brand .mark small {
  display: block; font-family: var(--sans); font-size: .58rem;
  letter-spacing: .34em; color: var(--gold); text-transform: uppercase;
}
.navlinks { display: flex; gap: 22px; align-items: center; }
.navlinks a {
  font-size: .82rem; letter-spacing: .08em; color: var(--ink-soft);
  position: relative; padding: 4px 0; transition: color .3s var(--ease);
}
.navlinks a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1.5px;
  background: var(--cinnabar); transition: width .35s var(--ease);
}
.navlinks a:hover { color: var(--cinnabar); }
.navlinks a:hover::after { width: 100%; }
.tools { display: flex; align-items: center; gap: 10px; }
.langbtn {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px;
  overflow: hidden; background: rgba(255,255,255,.5);
}
.langbtn button {
  border: 0; background: transparent; cursor: pointer;
  font-family: var(--sans); font-size: .72rem; letter-spacing: .1em;
  padding: 6px 13px; color: var(--ink-soft); transition: all .25s var(--ease);
}
.langbtn button.active { background: var(--teal); color: var(--paper); }
.menutoggle { display: none; background: none; border: 0; cursor: pointer; color: var(--teal); }

@media (max-width: 900px) {
  .navlinks {
    position: fixed; top: 60px; right: 0; left: 0; flex-direction: column; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .4s var(--ease);
  }
  .navlinks.open { max-height: 460px; }
  .navlinks a { padding: 14px 28px; width: 100%; border-bottom: 1px solid var(--line); }
  .menutoggle { display: block; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  overflow: hidden; color: var(--paper);
}
.hero-img {
  position: absolute; inset: 0;
  background: url("images/yangtze-dongting.jpg") center/cover no-repeat;
  transform: scale(1.12); animation: heroDrift 22s var(--ease) forwards;
}
@keyframes heroDrift { to { transform: scale(1); } }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,32,29,.62) 0%, rgba(20,32,29,.38) 45%, rgba(20,32,29,.86) 100%);
}
.hero .wrap { z-index: 3; }
.hero-kicker {
  font-size: .74rem; letter-spacing: .42em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 22px;
  opacity: 0; animation: rise .9s var(--ease) .3s forwards;
}
.hero h1 {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(2.6rem, 6.4vw, 5.4rem); line-height: 1.05; letter-spacing: .01em;
  max-width: 15ch; text-shadow: 0 6px 40px rgba(0,0,0,.35);
  opacity: 0; animation: rise .9s var(--ease) .45s forwards;
}
.hero h1 em { font-style: normal; color: var(--cinnabar-2); }
.hero .sub {
  margin-top: 24px; max-width: 44ch;
  font-size: clamp(.95rem, 1.5vw, 1.12rem); color: rgba(244,239,228,.88);
  opacity: 0; animation: rise .9s var(--ease) .6s forwards;
}
.hero-cta {
  margin-top: 38px; display: flex; gap: 16px; flex-wrap: wrap;
  opacity: 0; animation: rise .9s var(--ease) .75s forwards;
}
@keyframes rise { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 28px; border-radius: 999px;
  font-size: .85rem; letter-spacing: .06em;
  border: 1px solid rgba(244,239,228,.5);
  transition: all .3s var(--ease); cursor: pointer;
}
.btn.primary { background: var(--cinnabar); border-color: var(--cinnabar); color: #fff; }
.btn.primary:hover { background: var(--cinnabar-2); transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(178,58,46,.7); }
.btn.ghost:hover { background: rgba(244,239,228,.14); transform: translateY(-2px); }
.btn svg { width: 16px; height: 16px; }

/* ==========================================================================
   SECTION SHELL
   ========================================================================== */
section { padding: 110px 0; position: relative; }
.sec-head { margin-bottom: 56px; max-width: 760px; }
.sec-num {
  font-family: var(--display); font-size: .95rem; letter-spacing: .3em;
  color: var(--gold); display: block; margin-bottom: 14px;
}
.sec-head h2 {
  font-family: var(--serif); font-weight: 800;
  font-size: clamp(1.9rem, 3.8vw, 3rem); line-height: 1.15; color: var(--teal);
}
.sec-head h2::after {
  content: ""; display: block; width: 64px; height: 3px;
  background: var(--cinnabar); margin-top: 20px;
}
.sec-head p { margin-top: 20px; font-size: 1.02rem; color: var(--ink-soft); }

/* ==========================================================================
   ABOUT
   ========================================================================== */
#about { background: var(--paper); }
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.about-copy p + p { margin-top: 16px; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 34px; }
.fact { background: var(--paper); padding: 20px 22px; }
.fact .k { font-family: var(--display); font-size: 1.5rem; font-weight: 700; color: var(--cinnabar); }
.fact .l { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); margin-top: 2px; }
.about-figure { position: relative; }
.about-figure img { width: 100%; height: 520px; object-fit: cover; box-shadow: var(--shadow); }
.about-figure .tag {
  position: absolute; bottom: -22px; left: -22px;
  background: var(--teal); color: var(--paper);
  padding: 18px 26px; font-size: .78rem; letter-spacing: .1em;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-figure img { height: 380px; }
  .about-figure .tag { left: 0; }
}

/* ==========================================================================
   HISTORY
   ========================================================================== */
#history { background: var(--ink); color: var(--paper); }
#history .sec-head h2 { color: var(--paper); }
#history .sec-head p { color: rgba(244,239,228,.7); }
.timeline { position: relative; margin-top: 10px; padding-left: 34px; }
.timeline::before { content:""; position:absolute; left:6px; top:6px; bottom:6px; width:1.5px; background: linear-gradient(var(--gold), transparent); }
.tl-item { position: relative; padding: 0 0 42px 12px; }
.tl-item::before {
  content:""; position:absolute; left:-34px; top:6px; width:13px; height:13px; border-radius:50%;
  background: var(--cinnabar); box-shadow: 0 0 0 5px rgba(178,58,46,.18);
}
.tl-year { font-family: var(--display); font-size: 1.6rem; font-weight: 700; color: var(--gold); }
.tl-item h4 { font-family: var(--serif); font-size: 1.12rem; margin: 4px 0 6px; color: #fff; }
.tl-item p { color: rgba(244,239,228,.72); font-size: .95rem; max-width: 62ch; }

/* ==========================================================================
   SCENERY CARDS
   ========================================================================== */
#scenery { background: var(--paper-2); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 980px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--paper); overflow: hidden; position: relative;
  box-shadow: 0 14px 36px -24px rgba(27,38,33,.5);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-8px); box-shadow: 0 30px 60px -28px rgba(27,38,33,.6); }
.card-img { position: relative; height: 230px; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.card:hover .card-img img { transform: scale(1.07); }
.card-img .idx {
  position: absolute; top: 14px; left: 14px;
  font-family: var(--display); font-size: .82rem; letter-spacing: .16em;
  background: rgba(27,38,33,.72); color: var(--paper); padding: 5px 12px;
}
.card-body { padding: 24px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { font-family: var(--serif); font-size: 1.28rem; color: var(--teal); line-height: 1.3; }
.card-body h3 span { display:block; font-family: var(--sans); font-size: .74rem; letter-spacing: .12em; color: var(--gold); margin-top: 6px; text-transform: uppercase; }
.card-body p { margin-top: 14px; font-size: .93rem; color: var(--ink-soft); flex: 1; }
.navbtn {
  margin-top: 20px; align-self: flex-start;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; letter-spacing: .08em; font-weight: 600;
  color: var(--cinnabar); border: 0; border-bottom: 1.5px solid transparent;
  transition: all .3s var(--ease); cursor: pointer; background: none; padding: 0;
  font-family: var(--sans);
}
.navbtn:hover { border-bottom-color: var(--cinnabar); gap: 12px; }
.navbtn svg { width: 15px; height: 15px; }

/* ==========================================================================
   FOOD
   ========================================================================== */
#food { background: var(--paper); }
.food-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .food-grid { grid-template-columns: 1fr; gap: 40px; } }
.food-figure { display: grid; gap: 16px; }
.food-figure img { width: 100%; object-fit: cover; box-shadow: var(--shadow); }
.food-figure img:first-child { height: 300px; }
.food-figure img:last-child { height: 244px; }
@media (max-width: 900px) { .food-figure img:first-child { height: 220px; } .food-figure img:last-child { height: 180px; } }
.dish { display: flex; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.dish:first-child { padding-top: 0; }
.dish .icon {
  flex: 0 0 46px; height: 46px; border-radius: 50%;
  background: rgba(178,58,46,.1); color: var(--cinnabar);
  display: grid; place-items: center;
}
.dish .icon svg { width: 22px; height: 22px; }
.dish h4 { font-family: var(--serif); font-size: 1.14rem; color: var(--teal); }
.dish p { font-size: .92rem; color: var(--ink-soft); margin-top: 4px; }

/* ==========================================================================
   FOOD BY TOWN
   ========================================================================== */
#taste { background: var(--paper-2); }
.taste-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 980px) { .taste-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .taste-grid { grid-template-columns: 1fr; } }
.taste-card {
  background: var(--paper); display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 14px 36px -24px rgba(27,38,33,.5);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.taste-card:hover { transform: translateY(-8px); box-shadow: 0 30px 60px -28px rgba(27,38,33,.6); }
.taste-card .t-img { height: 210px; overflow: hidden; }
.taste-card .t-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.taste-card:hover .t-img img { transform: scale(1.07); }
.taste-card .t-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.taste-card .t-town { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); margin-bottom: 8px; }
.taste-card h3 { font-family: var(--serif); font-size: 1.24rem; color: var(--teal); line-height: 1.3; }
.taste-card h3 span { display: block; font-family: var(--sans); font-size: .72rem; letter-spacing: .1em; color: var(--ink-soft); margin-top: 5px; }
.taste-card p { margin-top: 13px; font-size: .91rem; color: var(--ink-soft); flex: 1; }
.taste-card .navbtn { margin-top: 18px; }

/* ==========================================================================
   ITINERARY
   ========================================================================== */
#itinerary { background: var(--teal); color: var(--paper); }
#itinerary .sec-head h2 { color: var(--paper); }
#itinerary .sec-head p { color: rgba(244,239,228,.78); }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
@media (max-width: 780px) { .plans { grid-template-columns: 1fr; } }
.plan {
  border: 1px solid rgba(244,239,228,.25); padding: 34px 32px;
  background: rgba(255,255,255,.04);
  transition: background .35s var(--ease), transform .35s var(--ease);
}
.plan:hover { background: rgba(255,255,255,.09); transform: translateY(-6px); }
.plan .badge {
  display: inline-block; font-size: .7rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold); border: 1px solid rgba(176,138,69,.6); padding: 4px 12px; margin-bottom: 18px;
}
.plan h3 { font-family: var(--serif); font-size: 1.5rem; color: #fff; margin-bottom: 8px; }
.plan .meta { font-size: .8rem; letter-spacing: .1em; color: rgba(244,239,228,.6); margin-bottom: 20px; }
.plan ol { list-style: none; counter-reset: s; }
.plan li { counter-increment: s; padding: 12px 0 12px 42px; position: relative; border-top: 1px dashed rgba(244,239,228,.18); font-size: .94rem; color: rgba(244,239,228,.9); }
.plan li::before {
  content: counter(s); position: absolute; left: 0; top: 12px;
  width: 26px; height: 26px; border-radius: 50%; background: var(--cinnabar); color: #fff;
  font-size: .74rem; display: grid; place-items: center; font-family: var(--display);
}

/* ==========================================================================
   INFO
   ========================================================================== */
#info { background: var(--paper-2); }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 860px) { .info-grid { grid-template-columns: 1fr; } }
.info-box { background: var(--paper); padding: 30px 28px; border-top: 3px solid var(--cinnabar); }
.info-box svg { width: 26px; height: 26px; color: var(--teal); margin-bottom: 16px; }
.info-box h4 { font-family: var(--serif); font-size: 1.15rem; color: var(--teal); margin-bottom: 10px; }
.info-box p { font-size: .92rem; color: var(--ink-soft); }
.map-cta { margin-top: 46px; text-align: center; }
.map-cta .btn { background: var(--teal); border-color: var(--teal); color: #fff; }
.map-cta .btn:hover { background: var(--teal-2); transform: translateY(-2px); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer { background: var(--ink); color: rgba(244,239,228,.7); padding: 54px 0 40px; }
.foot-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; flex-wrap: wrap; }
.foot-brand { font-family: var(--display); font-size: 1.5rem; letter-spacing: .14em; color: var(--paper); }
.foot-brand span { color: var(--gold); }
footer p { font-size: .86rem; max-width: 46ch; margin-top: 12px; line-height: 1.65; }
.foot-note { margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(244,239,228,.14); font-size: .74rem; color: rgba(244,239,228,.45); letter-spacing: .04em; }

/* reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}