/* =========================================================
   VYUAN 焕原 — 设计系统
   定位:editorial / refined minimalism
   核心:克制、留白、可信赖
   ========================================================= */

:root {
  /* —— 色彩 —— */
  --ink:        #1a1a1a;          /* 正文墨色 */
  --ink-soft:   #4a4a4a;          /* 次要文字 */
  --ink-faint:  #8a8a8a;          /* 弱化文字 */
  --paper:      #f7f5f0;          /* 米白底色 */
  --paper-warm: #efece4;          /* 米白略深 */
  --paper-deep: #e6e2d7;          /* 分隔线 */
  --green:      #2c4a3e;          /* 焕原墨绿 */
  --green-deep: #1f342c;          /* 深墨绿(强调) */
  --green-soft: #6b8579;          /* 浅墨绿(辅助) */
  --rust:       #b85c3a;          /* 红铜(警示/强调) */

  /* —— 字体 —— */
  --serif:  'Songti SC', 'STSong', 'SimSun', Georgia, serif;
  --sans:   -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', Arial, sans-serif;

  /* —— 节奏 —— */
  --gutter: clamp(20px, 4vw, 48px);
  --measure: 62ch;
  --content-w: 720px;
  --wide-w: 1080px;
}

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

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

body {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* —— 排版 —— */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-variation-settings: "opsz" 144;
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(38px, 6vw, 68px); font-weight: 300; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 4vw, 42px); }
h3 { font-size: clamp(22px, 2.6vw, 28px); }
h4 { font-size: clamp(18px, 2vw, 22px); font-weight: 500; }

p { margin: 0; }
p + p { margin-top: 1.1em; }

a { color: var(--green); text-decoration: none; border-bottom: 1px solid var(--green-soft); transition: color .2s, border-color .2s; }
a:hover { color: var(--green-deep); border-color: var(--green-deep); }

::selection { background: var(--green); color: var(--paper); }

/* —— 顶部导航 —— */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 28px var(--gutter);
  border-bottom: 1px solid var(--paper-deep);
  background: var(--paper);
}
.nav__brand {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
  border: none;
  letter-spacing: 0.02em;
}
.nav__brand-mark {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
  transform: translateY(-2px);
}
.nav__links { display: flex; gap: clamp(16px, 3vw, 32px); }
.nav__links a {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-soft);
  border: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav__links a:hover { color: var(--green-deep); }

@media (max-width: 540px) {
  .nav { flex-direction: column; gap: 16px; align-items: flex-start; }
  .nav__links { flex-wrap: wrap; gap: 16px; }
}

/* —— 主体容器 —— */
main {
  flex: 1;
  padding: clamp(48px, 9vw, 120px) var(--gutter) clamp(64px, 10vw, 140px);
  max-width: var(--content-w);
  margin: 0 auto;
  width: 100%;
}
main.wide { max-width: var(--wide-w); }

/* —— 区块 —— */
.section { margin-top: clamp(56px, 9vw, 100px); }
.section--tight { margin-top: clamp(32px, 5vw, 56px); }

.eyebrow {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 18px;
}

.lead {
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.5;
  font-weight: 300;
  color: var(--ink);
  max-width: 32ch;
}

.muted { color: var(--ink-soft); }
.faint { color: var(--ink-faint); font-size: 14px; }

/* —— 按钮 —— */
.btn {
  display: inline-block;
  padding: 16px 32px;
  background: var(--green-deep);
  color: var(--paper);
  border: none;
  border-radius: 0;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background .2s, transform .15s;
  text-transform: uppercase;
}
.btn:hover { background: var(--green); border: none; color: var(--paper); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--green-deep);
  border: 1px solid var(--green-deep);
}
.btn--ghost:hover { background: var(--green-deep); color: var(--paper); border-color: var(--green-deep); }

/* —— 列表 —— */
.list-clean { list-style: none; padding: 0; }
.list-clean li {
  padding: 14px 0;
  border-bottom: 1px solid var(--paper-deep);
  display: flex;
  gap: 14px;
  align-items: baseline;
}
.list-clean li:last-child { border-bottom: none; }
.list-clean .marker {
  font-family: var(--serif);
  color: var(--green);
  font-size: 18px;
  flex-shrink: 0;
  width: 1.2em;
}

.bullet-no { /* 不会做的事 */
  display: inline-block;
  width: 14px; height: 2px;
  background: var(--rust);
  vertical-align: middle;
  margin-right: 12px;
  transform: translateY(-3px);
}
.bullet-yes { /* 会做的事 */
  display: inline-block;
  width: 14px; height: 2px;
  background: var(--green);
  vertical-align: middle;
  margin-right: 12px;
  transform: translateY(-3px);
}

/* —— 卡片/分割 —— */
.divider {
  border: none;
  border-top: 1px solid var(--paper-deep);
  margin: clamp(40px, 6vw, 64px) 0;
}
.divider--ornate {
  border: none;
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--paper-deep) 18%, var(--green-soft) 50%, var(--paper-deep) 82%, transparent);
  margin: clamp(48px, 7vw, 72px) 0;
}
.divider--ornate::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 56px;
  height: 1px;
  background: var(--paper);
  transform: translate(-50%, -50%);
}
.divider--ornate::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 34px;
  height: 1px;
  background: var(--green-soft);
  transform: translate(-50%, -50%);
}

/* —— 引文 —— */
.pullquote {
  font-family: var(--serif);
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 300;
  line-height: 1.4;
  color: var(--green-deep);
  border-left: 2px solid var(--green);
  padding-left: 28px;
  margin: 40px 0;
  font-style: italic;
}

/* —— 表单 —— */
.form-group { margin-bottom: 32px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.form-group .hint {
  display: block;
  font-size: 13px;
  color: var(--ink-faint);
  margin-bottom: 12px;
  font-weight: 400;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--paper-deep);
  background: #fff;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  border-radius: 0;
  transition: border-color .2s;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--green-deep);
}
.form-group textarea { min-height: 110px; resize: vertical; line-height: 1.6; }

.radio-group, .check-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}
.radio-group label, .check-group label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: 400;
  font-size: 15px;
  color: var(--ink);
  margin: 0;
  cursor: pointer;
  padding: 10px 12px;
  border: 1px solid var(--paper-deep);
  background: #fff;
  transition: border-color .15s, background .15s;
}
.radio-group label:hover, .check-group label:hover {
  border-color: var(--green-soft);
}
.radio-group input, .check-group input {
  margin-top: 4px;
  accent-color: var(--green-deep);
  flex-shrink: 0;
}
.radio-group input:checked + span,
.check-group input:checked + span { font-weight: 500; }

.form-section-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--green-deep);
  margin: 48px 0 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--paper-deep);
}
.form-section-title:first-child { margin-top: 0; }
.form-section-desc {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

/* —— 状态消息 —— */
.flash {
  padding: 16px 20px;
  margin: 24px 0;
  border-left: 3px solid var(--green);
  background: var(--paper-warm);
  font-size: 15px;
  color: var(--ink);
}
.flash--error { border-color: var(--rust); }
.flash--ok    { border-color: var(--green); }

/* —— 页脚 —— */
.footer {
  margin-top: auto;
  padding: 40px var(--gutter);
  border-top: 1px solid var(--paper-deep);
  font-size: 13px;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  background: var(--paper-warm);
}
.footer a { color: var(--ink-soft); border: none; }
.footer a:hover { color: var(--green-deep); }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }

/* —— 入场动画 —— */
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.rise { animation: rise .7s cubic-bezier(.2,.7,.3,1) both; }
.delay-1 { animation-delay: .08s; }
.delay-2 { animation-delay: .16s; }
.delay-3 { animation-delay: .24s; }
.delay-4 { animation-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  .rise { animation: none; }
}

/* —— /beta 子页面专用 —— */
.dish-card {
  background: #fff;
  padding: clamp(28px, 4vw, 44px);
  border: 1px solid var(--paper-deep);
  margin: 32px 0;
}
.dish-card .dish-name {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 400;
  color: var(--green-deep);
  margin-bottom: 12px;
  line-height: 1.2;
}
.dish-card .dish-meta {
  font-size: 13px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}
.dish-card .dish-row {
  padding: 16px 0;
  border-top: 1px solid var(--paper-deep);
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  align-items: baseline;
}
.dish-card .dish-row:first-of-type { border-top: 1px solid var(--paper-deep); margin-top: 8px; }
.dish-card .dish-row dt {
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.dish-card .dish-row dd {
  font-size: 16px;
  color: var(--ink);
  line-height: 1.6;
}

@media (max-width: 540px) {
  .dish-card .dish-row { grid-template-columns: 1fr; gap: 4px; }
}

.action-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}