:root {
  color-scheme: light;
  --ink: #1a1714;
  --muted: #5c564c;
  --paper: #f3eee4;
  --card: #fffdf8;
  --line: #e4d9c8;
  --seal: #9c3b2e;
  --pine: #1b3830;
  --sand: #eadcc8;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(180deg, #efe6d6 0, transparent 280px),
    var(--paper);
  color: var(--ink);
  font: 17px/1.65 "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
}
a { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--seal);
  outline-offset: 3px;
}
.skip { position: absolute; left: 12px; top: -48px; background: var(--ink); color: white; padding: 8px 12px; }
.skip:focus { top: 12px; }
.top, main, footer { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 0;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
}
.brand { display: flex; gap: 10px; align-items: center; text-decoration: none; }
.mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--pine);
  color: #f6f1e7;
  font-family: Georgia, "Songti SC", serif;
}
.brand strong { display: block; font-family: Georgia, "Songti SC", serif; font-size: 18px; font-weight: 500; }
nav { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-left: auto; }
nav a { text-decoration: none; font-size: 15px; }
nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--seal); }
#lang {
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  padding: 6px 10px;
  font: inherit;
  cursor: pointer;
}
h1, h2, h3 { font-family: Georgia, "Songti SC", serif; font-weight: 500; line-height: 1.2; }
h1 { font-size: clamp(40px, 6vw, 68px); margin: 0 0 12px; }
h2 { font-size: clamp(28px, 3vw, 40px); margin: 0 0 8px; }
.kicker { letter-spacing: 0.14em; text-transform: uppercase; font-size: 12px; color: var(--seal); }
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
  padding: 18px 0 8px;
}
.lede { font-size: 19px; max-width: 38rem; }
.hero figure { margin: 0; }
.hero img, .shot, .diagram {
  width: 100%;
  height: auto;
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
}
figcaption, .quiet { color: var(--muted); font-size: 14px; }
.btnrow { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }
.btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  text-decoration: none;
  border: 1px solid var(--ink);
}
.btn.solid { background: var(--ink); color: #f6f1e7; }
.contact-group { margin-top: 18px; }
.contact-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  min-height: 96px;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  text-decoration: none;
}
.qq-open { display: flex; flex-direction: column; gap: 4px; min-height: 44px; text-decoration: none; }
.contact-card .label { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--seal); }
.contact-card strong { overflow-wrap: anywhere; }
.qq-fallback { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 10px 0 0; }
.qq-fallback[hidden] { display: none; }
.qq-fallback button {
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font: inherit;
  min-height: 36px;
  padding: 0 10px;
  cursor: pointer;
}
.band { margin: 28px 0; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.card {
  display: grid;
  grid-template-rows: auto 1fr;
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--line);
}
.card div, .pad { padding: 16px 18px 18px; }
.card:hover { border-color: var(--seal); }
.path {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.path li { background: var(--card); border-top: 4px solid var(--pine); padding: 12px; min-height: 132px; }
.path span { font-family: Georgia, serif; color: var(--seal); font-size: 22px; }
.path p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 22px; align-items: center; margin: 22px 0; }
.note, .module { background: var(--card); border: 1px solid var(--line); padding: 16px 18px; }
.note { border-left: 4px solid var(--seal); }
ol.steps { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
ol.steps li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: start;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 12px;
}
ol.steps b { font-family: Georgia, serif; font-size: 22px; color: var(--seal); }
.where { display: inline-block; margin-left: 8px; font-size: 12px; letter-spacing: 0.04em; color: var(--pine); }
details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; }
.brief { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: grid; gap: 6px; font-size: 14px; margin-bottom: 12px; }
input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  font: inherit;
  padding: 10px 12px;
}
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choices button[aria-pressed="true"] { background: var(--pine); color: white; border-color: var(--pine); }
.choices button {
  border: 1px solid var(--line);
  background: white;
  font: inherit;
  padding: 8px 10px;
  cursor: pointer;
}
.preview {
  background: var(--pine);
  color: #f6f1e7;
  padding: 18px;
  min-height: 280px;
}
.preview a { color: #f6f1e7; }
footer { padding: 28px 0 64px; color: var(--muted); font-size: 14px; }
@media (max-width: 860px) {
  .top { align-items: flex-start; flex-wrap: wrap; }
  nav { margin-left: 0; width: 100%; }
  .hero, .grid, .split, .brief, .path, .contact-row { display: grid; grid-template-columns: 1fr; }
  .path { grid-template-columns: 1fr 1fr; }
}