/* =========================================================
   肖辅 · UX 设计师个人网站 — 设计系统 (dark, spec-driven)
   唯一依据：docs/DESIGN.md（Raycast 风格深色规范）
   约束：调色板仅使用规范内令牌；后续视觉改动必须遵循本规范。
   纯静态，无构建步骤。
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

/* ---------- 设计变量（仅规范令牌，禁止引入规范外颜色） ---------- */
:root {
  /* 颜色 */
  --color-primary: #ffffff;
  --color-primary-pressed: #e8e8e8;
  --color-on-primary: #000000;
  --color-ink: #f4f4f6;
  --color-body: #cdcdcd;
  --color-charcoal: #d3d3d4;
  --color-mute: #9c9c9d;
  --color-ash: #6a6b6c;
  --color-stone: #434345;
  --color-on-dark: #ffffff;
  --color-on-dark-mute: rgba(255,255,255,0.72);
  --color-canvas: #07080a;
  --color-surface: #0d0d0d;
  --color-surface-elevated: #101111;
  --color-surface-card: #121212;
  --color-button-fg: #18191a;
  --color-hairline: #242728;
  --color-hairline-soft: rgba(255,255,255,0.08);
  --color-hairline-strong: rgba(255,255,255,0.16);
  --color-accent-blue: #57c1ff;
  --color-accent-blue-soft: rgba(87,193,255,0.15);
  --color-accent-red: #ff6161;
  --color-accent-red-soft: rgba(255,97,97,0.15);
  --color-accent-green: #59d499;
  --color-accent-green-soft: rgba(89,212,153,0.15);
  --color-accent-yellow: #ffc533;
  --color-accent-yellow-soft: rgba(255,197,51,0.15);
  --color-hero-stripe-start: #ff5757;
  --color-hero-stripe-end: #a1131a;

  /* 语义别名（指向规范令牌，便于维护） */
  --bg: var(--color-canvas);
  --bg-soft: var(--color-surface);
  --t-title: var(--color-ink);
  --t-body: var(--color-body);
  --t-sub: var(--color-mute);
  --bd: var(--color-hairline);
  --bd-soft: var(--color-hairline-soft);
  --bd-strong: var(--color-hairline-strong);
  --brand: var(--color-accent-blue);      /* 主交互高亮（accent blue） */
  --brand-soft: var(--color-accent-blue-soft);
  --accent: var(--color-accent-yellow);   /* 点缀（category accent） */

  /* 圆角 */
  --r-none: 0px;
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 9999px;

  /* 间距（规范密度） */
  --spacing-section: 96px;
  --gutter: 24px;
  --max-w: 1120px;

  /* 动效统一缓动 (easeOutQuint 系) */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 320ms;

  /* 字体 */
  --font-cn: "Inter", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-cn);
  color: var(--t-body);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  font-feature-settings: "ss03" 1;       /* 规范：Inter ss03 全程启用 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
.num { font-family: var(--font-en); font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: var(--r-xs); }

/* ---------- 布局工具 ---------- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--spacing-section) 0; }
.section-head { margin-bottom: 48px; }
.chapter-no {
  font-family: var(--font-en);
  font-size: clamp(64px, 12vw, 140px);
  font-weight: 800; line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--bd-strong);
  letter-spacing: .02em; opacity: .7;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 13px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--brand); font-weight: 600; margin-bottom: 14px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px); font-weight: 600;  /* Inter 600 */
  color: var(--t-title); letter-spacing: -.01em; line-height: 1.17;
}
.section-sub { color: var(--t-sub); margin-top: 12px; max-width: 560px; }

/* ---------- 导航（primary nav：canvas + hairline） ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; padding: 0 var(--gutter);
  background: rgba(7,8,10,0.72);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--bd-soft);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav.scrolled { border-bottom-color: var(--bd); }
.nav__logo {
  font-family: var(--font-en); font-weight: 600; letter-spacing: .04em;
  font-size: 16px; color: var(--t-title); display: inline-flex; align-items: center; gap: 8px;
}
.nav__logo .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__link {
  font-size: 14px; font-weight: 500; color: var(--color-body); position: relative; padding: 4px 0;
  transition: color var(--dur) var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--brand); transition: width var(--dur) var(--ease);
}
.nav__link:hover, .nav__link.active { color: var(--t-title); }
.nav__link:hover::after, .nav__link.active::after { width: 100%; }
.nav__cta { margin-left: 4px; }
.nav__burger { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 5px; }
.nav__burger span { height: 2px; background: var(--t-title); border-radius: 2px; transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease); }
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed; inset: 0; z-index: 99; background: rgba(7,8,10,0.96);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 28px;
  opacity: 0; pointer-events: none; transition: opacity var(--dur) var(--ease);
}
.drawer.open { opacity: 1; pointer-events: auto; }
.drawer a { font-size: 28px; font-weight: 600; color: var(--t-title); }

/* ---------- 按钮（white CTA pill + 次级/三级） ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 18px; border-radius: var(--r-md); font-size: 14px; font-weight: 500;  /* button-md */
  height: 36px; line-height: 1; transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn .arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn--primary:hover { background: var(--color-primary-pressed); }
.btn--secondary { background: transparent; color: var(--color-on-dark); border: 1px solid var(--bd); }
.btn--secondary:hover { border-color: var(--bd-strong); background: var(--color-surface-elevated); }
.btn--tertiary { background: var(--color-surface-elevated); color: var(--color-on-dark); }
.btn--tertiary:hover { background: var(--color-surface-card); }
.btn--ghost { border: 1px solid var(--bd-strong); color: var(--t-title); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); }

/* ---------- Hero（hero stripe band：canvas + 超大字 + 极淡辉光） ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; background: var(--bg); }
.hero__blobs { position: absolute; inset: 0; z-index: 0; filter: blur(80px); opacity: .5; pointer-events: none; }
.blob { position: absolute; border-radius: 50%; animation: drift 26s var(--ease) infinite alternate; }
.blob--1 { width: 460px; height: 460px; background: radial-gradient(circle at 30% 30%, var(--color-accent-blue-soft), transparent 70%); top: -80px; left: -60px; }
.blob--2 { width: 380px; height: 380px; background: radial-gradient(circle at 70% 40%, var(--color-accent-yellow-soft), transparent 70%); bottom: -60px; right: 8%; animation-delay: -8s; }
.blob--3 { width: 320px; height: 320px; background: radial-gradient(circle at 50% 50%, var(--color-accent-green-soft), transparent 70%); top: 30%; right: 30%; animation-delay: -16s; }
@keyframes drift { 0% { transform: translate(0,0) scale(1) } 100% { transform: translate(40px,-30px) scale(1.12) } }

.hero__inner { position: relative; z-index: 1; width: 100%; }
.hero__meta {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-family: var(--font-en); font-size: 13px; letter-spacing: .14em; color: var(--t-sub);
  text-transform: uppercase; margin-bottom: 28px;
}
.hero__big {
  font-family: var(--font-en); font-weight: 600; line-height: 1.05;
  font-size: clamp(64px, 13vw, 156px); letter-spacing: -.03em; color: var(--t-title);
  will-change: transform;
}
.hero__big .outline { color: transparent; -webkit-text-stroke: 1.5px var(--brand); }
.hero__tagline { font-size: clamp(18px, 2.4vw, 26px); color: var(--color-charcoal); margin-top: 22px; max-width: 620px; line-height: 1.4; }
.hero__tagline b { color: var(--accent); font-weight: 600; }
.hero__cta { display: flex; gap: 12px; margin-top: 38px; flex-wrap: wrap; align-items: center; }
.hero__hint { color: var(--t-sub); font-size: 13px; font-family: var(--font-en); letter-spacing: .04em; }
.hero__scroll {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-en); font-size: 12px; letter-spacing: .2em; color: var(--t-sub);
  display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 1;
  animation: bob 1.8s var(--ease) infinite;
}
.hero__scroll::after { content: ""; width: 1px; height: 32px; background: linear-gradient(var(--t-sub), transparent); }
@keyframes bob { 0%,100% { transform: translate(-50%, 0) } 50% { transform: translate(-50%, 8px) } }

/* ---------- 数据带（stat：白字 + accent unit） ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.stat { text-align: center; padding: 12px; }
.stat__num { font-family: var(--font-en); font-size: clamp(48px, 8vw, 84px); font-weight: 600; color: var(--t-title); line-height: 1; }
.stat__num .unit { font-size: .42em; margin-left: 4px; color: var(--brand); font-weight: 500; }
.stat__label { margin-top: 10px; color: var(--t-sub); font-size: 15px; }

/* ---------- 精选作品（command palette 卡：surface-card + hairline） ---------- */
.works-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.work-card {
  position: relative; border-radius: var(--r-lg); overflow: hidden; background: var(--color-surface-card);
  border: 1px solid var(--bd-soft); transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
  cursor: pointer;
}
.work-card:nth-child(even) { transform: translateY(36px); }
.work-card:hover { transform: translateY(-6px); border-color: var(--bd-strong); }
.work-card:nth-child(even):hover { transform: translateY(30px); }
.work-card__cover {
  aspect-ratio: 16/10; display: flex; align-items: flex-end; padding: 22px; color: #fff;
  position: relative; overflow: hidden;
}
.work-card__cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.12));
  transform: translateX(-101%); transition: transform 600ms var(--ease);
}
.work-card:hover .work-card__cover::after { transform: translateX(101%); }
.work-card__tag {
  position: absolute; top: 18px; left: 18px; z-index: 2;
  font-family: var(--font-en); font-size: 12px; font-weight: 600; letter-spacing: .08em;
  background: rgba(7,8,10,.5); backdrop-filter: blur(6px); padding: 5px 12px; border-radius: var(--r-pill); border: 1px solid var(--bd-soft);
}
.work-card__body { padding: 22px 24px 26px; }
.work-card__title { font-size: 22px; font-weight: 600; color: var(--t-title); display: flex; align-items: center; gap: 8px; }
.work-card__title .arrow { color: var(--brand); transition: transform var(--dur) var(--ease); }
.work-card:hover .work-card__title .arrow { transform: translateX(6px); }
.work-card__desc { color: var(--t-sub); margin-top: 8px; font-size: 15px; }

/* 渐变封面占位（真实截图涉密，上线前替换）—— 仅用规范四色强调 */
.cov-1 { background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green)); }
.cov-2 { background: linear-gradient(135deg, var(--color-accent-red), var(--color-accent-yellow)); }
.cov-3 { background: linear-gradient(135deg, var(--color-accent-yellow), var(--color-accent-blue)); }
.cov-4 { background: linear-gradient(135deg, var(--color-accent-green), var(--color-accent-yellow)); }
.cov-5 { background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-red)); }
.cov-6 { background: linear-gradient(135deg, var(--color-accent-red), var(--color-accent-green)); }
.cov-7 { background: linear-gradient(135deg, var(--color-accent-yellow), var(--color-accent-green)); }

/* ---------- 能力速览（feature card dark） ---------- */
.ability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ability {
  border: 1px solid var(--bd-soft); border-radius: var(--r-lg); padding: 28px 24px; background: var(--color-surface);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.ability:hover { border-color: var(--bd-strong); transform: translateY(-4px); background: var(--color-surface-elevated); }
.ability__icon { width: 46px; height: 46px; border-radius: var(--r-md); display: grid; place-items: center; color: var(--brand); font-family: var(--font-en); font-weight: 600; margin-bottom: 16px; background: var(--color-surface-elevated); border: 1px solid var(--bd-soft); }
.ability__name { font-size: 19px; font-weight: 600; color: var(--t-title); }
.ability__desc { color: var(--t-sub); font-size: 14px; margin-top: 8px; }

/* ---------- CTA 区（surface-elevated panel + hairline） ---------- */
.cta-band {
  background: var(--color-surface-elevated); border: 1px solid var(--bd);
  border-radius: var(--r-xl); padding: 56px 48px; text-align: center; color: var(--t-title);
}
.cta-band h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 600; line-height: 1.17; }
.cta-band p { color: var(--t-sub); margin: 12px 0 28px; }
.cta-band .btn--ghost { border-color: var(--bd-strong); color: var(--t-title); }
.cta-band .btn--ghost:hover { background: var(--color-surface-card); color: var(--t-title); }

/* ---------- 页脚（footer section：canvas + body） ---------- */
.footer { border-top: 1px solid var(--bd-soft); padding: 64px 0; color: var(--t-sub); font-size: 14px; }
.footer__row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; align-items: center; }
.footer a:hover { color: var(--t-title); }
.footer .status { display: inline-flex; align-items: center; gap: 8px; }
.dot-live { width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent-green); box-shadow: 0 0 0 0 rgba(89,212,153,.6); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(89,212,153,.5) } 70% { box-shadow: 0 0 0 8px rgba(89,212,153,0) } 100% { box-shadow: 0 0 0 0 rgba(89,212,153,0) } }

/* ---------- 关于页 ---------- */
.profile { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: start; }
.avatar {
  width: 280px; height: 280px; border-radius: var(--r-xl); background: var(--color-surface-card); border: 1px solid var(--bd-soft);
  display: grid; place-items: center; color: var(--t-title); font-family: var(--font-en); font-weight: 600; font-size: 96px;
}
.capsules { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
.capsule { border: 1px solid var(--bd); color: var(--color-body); padding: 6px 16px; border-radius: var(--r-pill); font-size: 14px; font-weight: 500; }
.bio { font-size: 17px; color: var(--color-charcoal); margin-top: 12px; }
.meta-line { color: var(--t-sub); margin-top: 10px; }

.timeline { margin-top: 16px; position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--bd); }
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item::before {
  content: ""; position: absolute; left: -25px; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-surface-card); border: 2px solid var(--bd); transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.tl-item.lit::before { border-color: var(--brand); box-shadow: 0 0 0 4px var(--brand-soft); }
.tl-date { font-family: var(--font-en); font-size: 13px; letter-spacing: .06em; color: var(--brand); font-weight: 500; }
.tl-role { font-size: 18px; font-weight: 600; color: var(--t-title); margin: 2px 0 4px; }
.tl-company { color: var(--t-sub); font-size: 15px; }

.skill-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 16px; }
.skill-group h4 { color: var(--t-title); margin-bottom: 12px; font-size: 17px; font-weight: 600; }
.skill-group ul li { padding: 6px 0; border-bottom: 1px solid var(--bd-soft); color: var(--color-body); }

/* ---------- 作品列表（pill tab 筛选 + command palette 卡） ---------- */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 36px; }
.filter {
  padding: 4px 14px; border-radius: var(--r-pill); border: 1px solid transparent;
  color: var(--color-body); font-size: 14px; font-weight: 500; background: transparent;
  transition: all var(--dur) var(--ease);
}
.filter.active { background: var(--color-surface-elevated); color: var(--color-on-dark); border-color: var(--bd); }
.filter:hover:not(.active) { color: var(--t-title); }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  border-radius: var(--r-lg); overflow: hidden; background: var(--color-surface-card); border: 1px solid var(--bd-soft);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), opacity var(--dur) var(--ease);
  cursor: pointer;
}
.case-card:hover { transform: translateY(-6px); border-color: var(--bd-strong); }
.case-card__cover { aspect-ratio: 4/3; display: flex; align-items: flex-end; padding: 16px; color: #fff; position: relative; overflow: hidden; }
.case-card__chapter { position: absolute; top: 14px; right: 14px; font-family: var(--font-en); font-weight: 600; font-size: 13px; background: rgba(7,8,10,.5); padding: 4px 10px; border-radius: var(--r-pill); border: 1px solid var(--bd-soft); }
.case-card__body { padding: 18px 20px 22px; }
.case-card__title { font-size: 18px; font-weight: 600; color: var(--t-title); }
.case-card__desc { color: var(--t-sub); font-size: 14px; margin-top: 6px; }
.case-card__tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.tag { font-size: 12px; padding: 3px 10px; border-radius: var(--r-pill); background: var(--color-surface-elevated); color: var(--color-body); border: 1px solid var(--bd-soft); }

/* ---------- 案例详情 ---------- */
.case-hero { padding: 140px 0 56px; }
.breadcrumb { color: var(--t-sub); font-size: 14px; margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--t-title); }
.case-hero h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 600; color: var(--t-title); letter-spacing: -.01em; line-height: 1.1; }
.case-hero .en { font-family: var(--font-en); color: var(--brand); letter-spacing: .04em; margin-top: 6px; font-size: 16px; font-weight: 500; }
.case-meta { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 24px; }
.case-meta div span { display: block; }
.case-meta .k { font-size: 12px; color: var(--t-sub); letter-spacing: .08em; text-transform: uppercase; }
.case-meta .v { font-size: 16px; color: var(--t-title); font-weight: 500; margin-top: 2px; }
.case-cover-big { aspect-ratio: 16/8; border-radius: var(--r-lg); margin-top: 36px; border: 1px solid var(--bd-soft); background: var(--color-surface-card); }

.case-body { max-width: 820px; margin: 0 auto; }
.case-block { margin: 56px 0; }
.case-block h2 { font-size: 26px; font-weight: 600; color: var(--t-title); margin-bottom: 14px; display: flex; align-items: center; gap: 12px; line-height: 1.17; }
.case-block h2 .idx { font-family: var(--font-en); color: var(--brand); font-size: 20px; font-weight: 500; }
.case-block p { color: var(--color-charcoal); margin-bottom: 12px; }
.case-block ul li { padding: 6px 0 6px 22px; position: relative; color: var(--color-body); }
.case-block ul li::before { content: ""; position: absolute; left: 0; top: 14px; width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }
.placeholder-note { background: var(--color-surface-elevated); border: 1px solid var(--bd-soft); border-radius: var(--r-md); padding: 14px 18px; color: var(--t-sub); font-size: 14px; margin: 14px 0; }
.next-case { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--bd-soft); padding-top: 32px; margin-top: 64px; }
.next-case a { font-size: 20px; font-weight: 600; color: var(--t-title); display: inline-flex; align-items: center; gap: 8px; }
.next-case a:hover { color: var(--brand); }

/* 案例页侧边进度（桌面） */
.case-progress { position: fixed; top: 50%; right: 24px; transform: translateY(-50%); display: flex; flex-direction: column; gap: 14px; z-index: 40; }
.case-progress a { width: 10px; height: 10px; border-radius: 50%; background: var(--bd); transition: all var(--dur) var(--ease); }
.case-progress a.active { background: var(--brand); transform: scale(1.4); }

/* ---------- 联系页 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.contact-mail { font-family: var(--font-en); font-size: clamp(22px, 4vw, 38px); font-weight: 600; color: var(--t-title); word-break: break-all; }
.contact-mail a:hover { color: var(--brand); }
.contact-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.phone-hidden { color: var(--t-sub); border: 1px solid var(--bd); border-radius: var(--r-md); padding: 12px 18px; display: inline-flex; align-items: center; gap: 10px; }

/* ---------- 404 ---------- */
.nf { min-height: 80vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.nf h1 { font-family: var(--font-en); font-size: clamp(120px, 24vw, 260px); font-weight: 600; color: transparent; -webkit-text-stroke: 2px var(--brand); animation: bob 2.4s var(--ease) infinite; }

/* ---------- 设计令牌组件（规范组件，供后续复用） ---------- */
.keycap {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-surface-card); color: var(--color-body);
  font-family: var(--font-en); font-size: 13px; border-radius: var(--r-xs);
  padding: 1px 6px; height: 20px; border: 1px solid var(--bd-soft);
}
.badge-soft {
  display: inline-flex; align-items: center;
  background: var(--brand-soft); color: var(--brand);
  font-size: 12px; border-radius: var(--r-xs); padding: 2px 8px; font-weight: 500;
}
.palette-card {
  background: var(--color-surface); color: var(--color-on-dark);
  border-radius: var(--r-lg); padding: 24px; border: 1px solid var(--bd-soft);
}

/* ---------- 滚动进场 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .blob, .hero__scroll, .dot-live, .nf h1 { animation: none !important; }
  .hero__big { transform: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .ability-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .skill-groups { grid-template-columns: 1fr; }
  .case-progress { display: none; }
}
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .section { padding: 64px 0; }
  .works-grid { grid-template-columns: 1fr; }
  .work-card:nth-child(even) { transform: none; }
  .work-card:nth-child(even):hover { transform: translateY(-6px); }
  .stats { grid-template-columns: 1fr; gap: 32px; }
  .ability-grid { grid-template-columns: 1fr 1fr; }
  .profile { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .avatar { width: 200px; height: 200px; font-size: 72px; }
  .capsules { justify-content: center; }
  .case-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 24px; }
}
@media (max-width: 480px) {
  .ability-grid { grid-template-columns: 1fr; }
}

/* =========================================================
   图标系统 — 唯一来源：Mage Icons (https://mageicons.com, Apache-2.0)
   图标经 tools/fetch_mage_icons.py 拉取并存于 assets/icons/，
   由 mage-sprite.svg 提供 <symbol>，页面通过 <use> 引用。
   约束：全站图标一律取自 Mage Icons，禁止混用其他图标库，保持视觉统一。
   ========================================================= */
.ico {
  width: 1.25em; height: 1.25em;
  display: inline-block; flex: none;
  vertical-align: -0.15em;
  color: inherit;            /* 线性图标：symbol 内路径用 stroke="currentColor" */
  fill: none;
}
.ico--fill { fill: currentColor; stroke: none; }   /* 品牌填充图标（github/linkedin/x/we-chat） */
.ico--xs { width: 14px; height: 14px; }
.ico--sm { width: 18px; height: 18px; }
.ico--1  { width: 20px; height: 20px; }
.ico--2  { width: 24px; height: 24px; }
.ico--lg { width: 28px; height: 28px; }
.ico--muted { color: var(--t-sub); }
.ico--brand { color: var(--brand); }
.ico--accent { color: var(--accent); }
.ico--white { color: #fff; }

/* 导航 logo 图标 */
.nav__logo { display: inline-flex; align-items: center; gap: 8px; }
.nav__logo .ico { width: 22px; height: 22px; }

/* Hero 滚动提示 */
.hero__scroll .ico { width: 18px; height: 18px; }

/* 能力卡图标 */
.ability__icon .ico { width: 22px; height: 22px; }

/* 页脚社交图标 */
.footer__social { display: flex; gap: 10px; margin-top: 14px; }
.footer__social a {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: var(--r-md); border: 1px solid var(--bd-soft);
  color: var(--t-sub); background: var(--color-surface-elevated);
  transition: all var(--dur) var(--ease);
}
.footer__social a:hover { color: var(--color-on-dark); background: var(--brand); border-color: var(--brand); transform: translateY(-2px); }
.footer__social .ico { width: 18px; height: 18px; }

/* 作品筛选 Tab 图标 */
.filter { display: inline-flex; align-items: center; gap: 8px; }
.filter .ico { width: 16px; height: 16px; }

/* 案例进度侧栏图标 + 悬浮标签 */
.case-progress a {
  position: relative;
  width: auto; height: auto; border-radius: var(--r-sm); padding: 9px;
  background: var(--color-surface-elevated); border: 1px solid var(--bd-soft);
  display: grid; place-items: center;
}
.case-progress a .ico { width: 18px; height: 18px; color: var(--t-sub); }
.case-progress a.active { background: var(--brand-soft); border-color: var(--brand); transform: none; }
.case-progress a.active .ico { color: var(--brand); }
.case-progress a[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
  background: var(--color-surface-elevated); border: 1px solid var(--bd-soft);
  color: var(--t-title); font-size: 12px; padding: 4px 8px; border-radius: var(--r-sm);
  white-space: nowrap; pointer-events: none;
}

/* 关于页时间线图标 */
.tl-role { display: inline-flex; align-items: center; gap: 8px; }
.tl-role .ico { width: 16px; height: 16px; color: var(--brand); }

/* 联系页信息行图标 */
.contact-list { display: grid; gap: 14px; margin-top: 28px; }
.contact-row { display: flex; align-items: center; gap: 14px; padding: 16px 18px; border: 1px solid var(--bd-soft); border-radius: var(--r-lg); background: var(--color-surface-card); }
.contact-row .ico { width: 22px; height: 22px; color: var(--brand); flex: none; }
.contact-row .k { color: var(--t-sub); font-size: 12px; }
.contact-row .v { color: var(--t-title); font-weight: 600; }
.contact-row .v a { color: inherit; }