/* ============================================================
   Material Design 3 — 排版 / 形状 / 高度 / 组件
   刘牧欣 · 求职作品集
   颜色令牌见 tokens.css（由 M3 色调色板生成）
   ============================================================ */

/* ---------- 字体 ---------- */
:root{
  --md-ref-typeface-brand:"Roboto","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --md-ref-typeface-plain:"Roboto","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

/* ---------- M3 排版比例 (type scale) ---------- */
:root{
  --md-sys-typescale-display-large-size:57px;  --md-sys-typescale-display-large-line:64px;  --md-sys-typescale-display-large-weight:400; --md-sys-typescale-display-large-track:-0.25px;
  --md-sys-typescale-display-medium-size:45px; --md-sys-typescale-display-medium-line:52px; --md-sys-typescale-display-medium-weight:400;--md-sys-typescale-display-medium-track:0px;
  --md-sys-typescale-display-small-size:36px;  --md-sys-typescale-display-small-line:44px;  --md-sys-typescale-display-small-weight:400; --md-sys-typescale-display-small-track:0px;

  --md-sys-typescale-headline-large-size:32px; --md-sys-typescale-headline-large-line:40px; --md-sys-typescale-headline-large-weight:400;--md-sys-typescale-headline-large-track:0px;
  --md-sys-typescale-headline-medium-size:28px;--md-sys-typescale-headline-medium-line:36px;--md-sys-typescale-headline-medium-weight:400;--md-sys-typescale-headline-medium-track:0px;
  --md-sys-typescale-headline-small-size:24px; --md-sys-typescale-headline-small-line:32px; --md-sys-typescale-headline-small-weight:400;--md-sys-typescale-headline-small-track:0px;

  --md-sys-typescale-title-large-size:22px;    --md-sys-typescale-title-large-line:28px;    --md-sys-typescale-title-large-weight:400;  --md-sys-typescale-title-large-track:0px;
  --md-sys-typescale-title-medium-size:16px;   --md-sys-typescale-title-medium-line:24px;   --md-sys-typescale-title-medium-weight:500; --md-sys-typescale-title-medium-track:0.15px;
  --md-sys-typescale-title-small-size:14px;    --md-sys-typescale-title-small-line:20px;    --md-sys-typescale-title-small-weight:500;  --md-sys-typescale-title-small-track:0.1px;

  --md-sys-typescale-body-large-size:16px;     --md-sys-typescale-body-large-line:24px;     --md-sys-typescale-body-large-weight:400;   --md-sys-typescale-body-large-track:0.5px;
  --md-sys-typescale-body-medium-size:14px;    --md-sys-typescale-body-medium-line:20px;    --md-sys-typescale-body-medium-weight:400;  --md-sys-typescale-body-medium-track:0.25px;
  --md-sys-typescale-body-small-size:12px;     --md-sys-typescale-body-small-line:16px;     --md-sys-typescale-body-small-weight:400;   --md-sys-typescale-body-small-track:0.4px;

  --md-sys-typescale-label-large-size:14px;    --md-sys-typescale-label-large-line:20px;    --md-sys-typescale-label-large-weight:500;  --md-sys-typescale-label-large-track:0.1px;
  --md-sys-typescale-label-medium-size:12px;   --md-sys-typescale-label-medium-line:16px;   --md-sys-typescale-label-medium-weight:500; --md-sys-typescale-label-medium-track:0.5px;
  --md-sys-typescale-label-small-size:11px;    --md-sys-typescale-label-small-line:16px;    --md-sys-typescale-label-small-weight:500;  --md-sys-typescale-label-small-track:0.5px;
}

/* ---------- M3 形状比例 (shape scale) ---------- */
:root{
  --md-sys-shape-corner-none:0;
  --md-sys-shape-corner-extra-small:4px;
  --md-sys-shape-corner-small:8px;
  --md-sys-shape-corner-medium:12px;
  --md-sys-shape-corner-large:16px;
  --md-sys-shape-corner-extra-large:28px;
  --md-sys-shape-corner-full:9999px;
}

/* ---------- M3 高度层级 (elevation) ---------- */
:root{
  --md-sys-elevation-level0:none;
  --md-sys-elevation-level1:0 1px 2px 0 rgba(0,0,0,.30),0 1px 3px 1px rgba(0,0,0,.15);
  --md-sys-elevation-level2:0 1px 2px 0 rgba(0,0,0,.30),0 2px 6px 2px rgba(0,0,0,.15);
  --md-sys-elevation-level3:0 1px 3px 0 rgba(0,0,0,.30),0 4px 8px 3px rgba(0,0,0,.15);
  --md-sys-elevation-level4:0 2px 3px 0 rgba(0,0,0,.30),0 6px 10px 4px rgba(0,0,0,.15);
  --md-sys-elevation-level5:0 4px 4px 0 rgba(0,0,0,.30),0 8px 12px 6px rgba(0,0,0,.15);
}

/* ---------- M3 状态层与动效 ---------- */
:root{
  --md-sys-state-hover-opacity:.08;
  --md-sys-state-focus-opacity:.10;
  --md-sys-state-pressed-opacity:.10;
  --md-sys-state-dragged-opacity:.16;

  --md-sys-motion-easing-standard:cubic-bezier(.2,0,0,1);
  --md-sys-motion-easing-standard-decelerate:cubic-bezier(0,0,0,1);
  --md-sys-motion-easing-emphasized:cubic-bezier(.2,0,0,1);
  --md-sys-motion-duration-short2:100ms;
  --md-sys-motion-duration-short4:200ms;
  --md-sys-motion-duration-medium2:300ms;
  --md-sys-motion-duration-long2:500ms;

  --app-max:1200px;
  --app-gutter:clamp(16px,4vw,40px);
  --app-bar-h:64px;
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
  scroll-padding-top:calc(var(--app-bar-h) + 16px);
}

body{
  margin:0;
  background:var(--md-sys-color-surface);
  color:var(--md-sys-color-on-surface);
  font-family:var(--md-ref-typeface-plain);
  font-size:var(--md-sys-typescale-body-large-size);
  line-height:var(--md-sys-typescale-body-large-line);
  letter-spacing:var(--md-sys-typescale-body-large-track);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background-color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
             color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

img{max-width:100%;height:auto;display:block;aspect-ratio:auto}
a{color:var(--md-sys-color-primary);text-decoration:none}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
strong{font-weight:600}
h1,h2,h3,h4{margin:0;font-weight:400}

.t-display-s{font-size:var(--md-sys-typescale-display-small-size);line-height:var(--md-sys-typescale-display-small-line);font-weight:400}
.t-headline-l{font-size:var(--md-sys-typescale-headline-large-size);line-height:var(--md-sys-typescale-headline-large-line);font-weight:400}
.t-headline-m{font-size:var(--md-sys-typescale-headline-medium-size);line-height:var(--md-sys-typescale-headline-medium-line);font-weight:400}
.t-headline-s{font-size:var(--md-sys-typescale-headline-small-size);line-height:var(--md-sys-typescale-headline-small-line);font-weight:400}
.t-title-l{font-size:var(--md-sys-typescale-title-large-size);line-height:var(--md-sys-typescale-title-large-line);font-weight:400}
.t-title-m{font-size:var(--md-sys-typescale-title-medium-size);line-height:var(--md-sys-typescale-title-medium-line);font-weight:500;letter-spacing:.15px}
.t-title-s{font-size:var(--md-sys-typescale-title-small-size);line-height:var(--md-sys-typescale-title-small-line);font-weight:500;letter-spacing:.1px}
.t-body-l{font-size:var(--md-sys-typescale-body-large-size);line-height:var(--md-sys-typescale-body-large-line);letter-spacing:.5px}
.t-body-m{font-size:var(--md-sys-typescale-body-medium-size);line-height:var(--md-sys-typescale-body-medium-line);letter-spacing:.25px}
.t-body-s{font-size:var(--md-sys-typescale-body-small-size);line-height:var(--md-sys-typescale-body-small-line);letter-spacing:.4px}
.t-label-l{font-size:var(--md-sys-typescale-label-large-size);line-height:var(--md-sys-typescale-label-large-line);font-weight:500;letter-spacing:.1px}
.t-label-m{font-size:var(--md-sys-typescale-label-medium-size);line-height:var(--md-sys-typescale-label-medium-line);font-weight:500;letter-spacing:.5px}

.wrap{max-width:var(--app-max);margin:0 auto;padding:0 var(--app-gutter)}
.muted{color:var(--md-sys-color-on-surface-variant)}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary);
  padding:12px 20px;border-radius:var(--md-sys-shape-corner-full);
}
.skip-link:focus{left:16px;top:12px}

/* ============================================================
   Top app bar（small · on-scroll）
   ============================================================ */
.top-app-bar{
  position:sticky;top:0;z-index:100;
  height:var(--app-bar-h);
  background:var(--md-sys-color-surface);
  transition:background-color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
             box-shadow var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}
.top-app-bar.scrolled{
  background:var(--md-sys-color-surface-container);
  box-shadow:var(--md-sys-elevation-level2);
}
.top-app-bar__row{display:flex;align-items:center;justify-content:space-between;height:var(--app-bar-h);gap:16px}
.top-app-bar__leading{display:flex;align-items:center;gap:14px;min-width:0}
.app-avatar{
  width:40px;height:40px;border-radius:var(--md-sys-shape-corner-full);
  background:var(--md-sys-color-primary-container);
  color:var(--md-sys-color-on-primary-container);
  display:grid;place-items:center;flex-shrink:0;font-size:15px;font-weight:500;
}
.app-title{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.app-title b{font-size:16px;font-weight:500;white-space:nowrap}
.app-title span{font-size:11px;letter-spacing:.14em;color:var(--md-sys-color-on-surface-variant);font-weight:500}
.top-app-bar__actions{display:flex;align-items:center;gap:4px}

.m3-nav{display:flex;align-items:center;gap:4px}
.m3-nav a{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 16px;border-radius:var(--md-sys-shape-corner-full);
  font-size:var(--md-sys-typescale-label-large-size);
  font-weight:var(--md-sys-typescale-label-large-weight);
  letter-spacing:var(--md-sys-typescale-label-large-track);
  color:var(--md-sys-color-on-surface-variant);
  transition:background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
             color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.m3-nav a:hover{background:color-mix(in srgb,var(--md-sys-color-on-surface) 8%,transparent)}
.m3-nav a.active{background:var(--md-sys-color-secondary-container);color:var(--md-sys-color-on-secondary-container)}

.icon-btn{
  position:relative;display:grid;place-items:center;
  width:48px;height:48px;border:0;padding:0;cursor:pointer;
  border-radius:var(--md-sys-shape-corner-full);
  background:transparent;color:var(--md-sys-color-on-surface-variant);
  transition:background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
  -webkit-tap-highlight-color:transparent;
}
.icon-btn:hover{background:color-mix(in srgb,var(--md-sys-color-on-surface) 8%,transparent)}
.icon-btn:focus-visible{outline:3px solid var(--md-sys-color-secondary);outline-offset:2px}
.icon-btn svg{width:24px;height:24px;fill:currentColor}
.nav-toggle{display:none}

.progress{
  position:absolute;left:0;bottom:0;height:3px;width:0;
  background:var(--md-sys-color-primary);
  border-radius:0 var(--md-sys-shape-corner-full) var(--md-sys-shape-corner-full) 0;
  transition:width 80ms linear;
}

/* ============================================================
   按钮 (common buttons)
   ============================================================ */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 24px;border:0;cursor:pointer;
  border-radius:var(--md-sys-shape-corner-full);
  font-family:inherit;
  font-size:var(--md-sys-typescale-label-large-size);
  font-weight:var(--md-sys-typescale-label-large-weight);
  letter-spacing:var(--md-sys-typescale-label-large-track);
  transition:box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
             background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
  -webkit-tap-highlight-color:transparent;
}
.btn svg{width:18px;height:18px;fill:currentColor;flex-shrink:0}
.btn::before{
  content:"";position:absolute;inset:0;opacity:0;background:currentColor;
  transition:opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.btn:hover::before{opacity:var(--md-sys-state-hover-opacity)}
.btn:focus-visible{outline:3px solid var(--md-sys-color-secondary);outline-offset:2px}
.btn:active::before{opacity:var(--md-sys-state-pressed-opacity)}
.btn > *{position:relative}

.btn--filled{background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary)}
.btn--filled:hover{box-shadow:var(--md-sys-elevation-level1)}
.btn--filled:active{box-shadow:var(--md-sys-elevation-level0)}
.btn--tonal{background:var(--md-sys-color-secondary-container);color:var(--md-sys-color-on-secondary-container)}
.btn--tonal:hover{box-shadow:var(--md-sys-elevation-level1)}
.btn--outlined{background:transparent;color:var(--md-sys-color-primary);box-shadow:inset 0 0 0 1px var(--md-sys-color-outline)}
.btn--text{background:transparent;color:var(--md-sys-color-primary);padding:0 12px}
.btn--elevated{background:var(--md-sys-color-surface-container-low);color:var(--md-sys-color-primary);box-shadow:var(--md-sys-elevation-level1)}
.btn--lg{height:48px;padding:0 28px;font-size:15px}

/* ============================================================
   卡片 (cards)
   ============================================================ */
.card{
  background:var(--md-sys-color-surface-container-low);
  border-radius:var(--md-sys-shape-corner-medium);
  overflow:hidden;
  transition:box-shadow var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
             background-color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}
.card--outlined{background:var(--md-sys-color-surface);box-shadow:inset 0 0 0 1px var(--md-sys-color-outline-variant)}
.card--elevated{background:var(--md-sys-color-surface-container-low);box-shadow:var(--md-sys-elevation-level1)}
.card--interactive:hover{box-shadow:var(--md-sys-elevation-level2);background:var(--md-sys-color-surface-container)}

/* ============================================================
   Chips
   ============================================================ */
.chip-set{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 12px;
  border-radius:var(--md-sys-shape-corner-small);
  background:transparent;color:var(--md-sys-color-on-surface-variant);
  box-shadow:inset 0 0 0 1px var(--md-sys-color-outline);
  font-size:var(--md-sys-typescale-label-large-size);
  font-weight:var(--md-sys-typescale-label-large-weight);
  letter-spacing:var(--md-sys-typescale-label-large-track);
  white-space:nowrap;
}
.chip--tag{
  background:var(--md-sys-color-surface-container-high);
  color:var(--md-sys-color-on-surface-variant);
  box-shadow:none;
}
.chip--selected{background:var(--md-sys-color-secondary-container);color:var(--md-sys-color-on-secondary-container);box-shadow:none}

.divider{height:1px;background:var(--md-sys-color-outline-variant);border:0;margin:0}

/* ============================================================
   页面骨架
   ============================================================ */
.section{padding:clamp(48px,7vw,88px) 0}
.section--tonal{background:var(--md-sys-color-surface-container-low)}

.section-head{margin-bottom:clamp(28px,4vw,48px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:var(--md-sys-typescale-label-large-size);
  font-weight:500;letter-spacing:.12em;
  color:var(--md-sys-color-primary);margin-bottom:12px;
}
.eyebrow::after{content:"";width:40px;height:2px;border-radius:2px;background:var(--md-sys-color-outline-variant)}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--md-sys-color-on-surface-variant);margin:0;max-width:62ch}

.block-title{display:flex;align-items:center;gap:16px;margin:clamp(36px,5vw,64px) 0 clamp(20px,3vw,32px)}
.block-title:first-child{margin-top:0}
.block-title__badge{
  width:40px;height:40px;flex-shrink:0;border-radius:var(--md-sys-shape-corner-full);
  display:grid;place-items:center;
  background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary);
  font-size:var(--md-sys-typescale-label-large-size);font-weight:500;
}
.block-title__text{font-size:var(--md-sys-typescale-headline-small-size);line-height:1.3;font-weight:400}

/* ============================================================
   Hero
   ============================================================ */
.hero{padding:clamp(40px,6vw,72px) 0 clamp(32px,5vw,56px)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:clamp(28px,4vw,56px);align-items:start}
.hero__name{font-size:clamp(40px,8vw,64px);line-height:1.05;font-weight:400;letter-spacing:-.5px;margin-bottom:8px}
.hero__role{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;margin-bottom:24px;
  border-radius:var(--md-sys-shape-corner-small);
  background:var(--md-sys-color-tertiary-container);
  color:var(--md-sys-color-on-tertiary-container);
  font-size:var(--md-sys-typescale-label-large-size);font-weight:500;letter-spacing:.1em;
}
.hero__desc{color:var(--md-sys-color-on-surface-variant);max-width:46ch;margin-bottom:28px}
.hero__contact{display:flex;flex-wrap:wrap;gap:8px 20px;margin-bottom:28px}
.hero__contact li{display:flex;align-items:center;gap:8px;font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface-variant)}
.hero__contact svg{width:18px;height:18px;fill:var(--md-sys-color-primary);flex-shrink:0}
.hero__contact a{color:inherit;border-bottom:1px solid transparent;transition:border-color 200ms}
.hero__contact a:hover{border-bottom-color:var(--md-sys-color-primary);color:var(--md-sys-color-primary)}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px}

.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.stat-card{
  background:var(--md-sys-color-surface-container-high);
  border-radius:var(--md-sys-shape-corner-medium);
  padding:20px;
  transition:background-color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}
.stat-card b{display:block;font-size:36px;line-height:1.1;font-weight:400;color:var(--md-sys-color-primary);margin-bottom:6px}
.stat-card b span{font-size:16px;font-weight:500;margin-left:2px;color:var(--md-sys-color-on-surface-variant)}
.stat-card small{font-size:var(--md-sys-typescale-body-small-size);line-height:1.5;color:var(--md-sys-color-on-surface-variant);display:block}

.hero__media{margin-top:clamp(32px,5vw,56px)}
figure{margin:0}
figure img{width:100%;border-radius:var(--md-sys-shape-corner-medium)}
figcaption{margin-top:10px;font-size:var(--md-sys-typescale-body-small-size);color:var(--md-sys-color-on-surface-variant)}

.zoomable{cursor:zoom-in;position:relative;display:block;border-radius:var(--md-sys-shape-corner-medium);overflow:hidden}
.zoomable img{transition:transform var(--md-sys-motion-duration-long2) var(--md-sys-motion-easing-emphasized)}
.zoomable::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:var(--md-sys-color-on-surface);opacity:0;
  transition:opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.zoomable:hover::after{opacity:var(--md-sys-state-hover-opacity)}
.zoomable:focus-visible{outline:3px solid var(--md-sys-color-secondary);outline-offset:3px}
.zoomable:hover img{transform:scale(1.02)}

/* ============================================================
   双栏内容
   ============================================================ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(24px,4vw,48px);align-items:start}
.split--wide-right{grid-template-columns:minmax(0,.95fr) minmax(0,1.15fr)}

.spec-list{margin-top:24px;border-top:1px solid var(--md-sys-color-outline-variant)}
.spec-list > div{display:grid;grid-template-columns:108px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--md-sys-color-outline-variant)}
.spec-list dt{font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface-variant);font-weight:500}
.spec-list dd{margin:0;font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface)}

.h3-sub{display:block;font-size:.74em;color:var(--md-sys-color-on-surface-variant);font-weight:400;margin-top:6px}

/* ============================================================
   微电影播放器
   media-chrome 的控件样式保持官方默认，这里只控制版面尺寸，
   不改动任何 --media-* 变量、颜色或控件外观。
   ============================================================ */
.film-player{display:flex;flex-direction:column;min-width:0}
.film-player media-controller{
  display:block;width:100%;aspect-ratio:16/9;
}
.film-player figcaption{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  margin-top:10px;font-size:var(--md-sys-typescale-body-small-size);
  color:var(--md-sys-color-on-surface-variant);
}
.film-player figcaption a{
  color:var(--md-sys-color-primary);
  border-bottom:1px solid transparent;
  transition:border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.film-player figcaption a:hover{border-bottom-color:var(--md-sys-color-primary)}

/* 视频新闻：正片截图四宫格 */
.news-stills{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(10px,1.6vw,16px);
  margin-top:clamp(24px,3vw,36px);
}
.news-stills figure{margin:0}
.news-stills figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--md-sys-shape-corner-medium);
}
.news-stills__cap{
  grid-column:1 / -1;margin:4px 0 0;
  font-size:var(--md-sys-typescale-body-small-size);
  color:var(--md-sys-color-on-surface-variant);
}

/* 视频类图片排版
   第一行：正片截图（横向，通栏）
   第二行：结项证书（纵向） + 后期工程截图（横向，垂直居中）
   窄屏依次堆叠：正片截图 → 结项证书 → 后期工程截图            */
.film-shot{margin-top:clamp(24px,3vw,40px)}

.film-media-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);
  gap:clamp(20px,4vw,48px);
  align-items:center;          /* 高度不同也能视觉居中，消除底部留白 */
  margin-top:clamp(24px,3vw,40px);
}
.film-media-row figure{display:flex;flex-direction:column;min-width:0}
/* 证书为纵向，限制高度避免过高；后期截图为横向，自然撑满其栏 */
.film-media-row figure:first-child img{max-height:620px;width:auto;max-width:100%;margin:0 auto}

@media (max-width:840px){
  .film-media-row{
    grid-template-columns:1fr;
    gap:clamp(20px,4vw,32px);
    align-items:start;
  }
  .film-media-row figure:first-child img{max-height:none;width:100%;margin:0}
}

.poster-note{padding:4px 0}
.poster-title{font-size:32px;line-height:1.2;font-weight:400;letter-spacing:.06em;margin-bottom:2px}
.poster-en{font-size:var(--md-sys-typescale-label-medium-size);letter-spacing:.14em;text-transform:uppercase;color:var(--md-sys-color-on-surface-variant);margin-bottom:20px}
.tool-line{font-size:var(--md-sys-typescale-body-small-size);color:var(--md-sys-color-on-surface-variant);margin-top:20px;padding-top:16px;border-top:1px solid var(--md-sys-color-outline-variant)}

/* ============================================================
   AIGC 卡片
   ============================================================ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,24px)}
.aigc-card{display:flex;flex-direction:column}
.aigc-card .zoomable{border-radius:0}
.aigc-card figure img{aspect-ratio:9/14;object-fit:cover;object-position:top center;border-radius:0}
.aigc-card__body{padding:20px;display:flex;flex-direction:column;flex:1;gap:10px}
.aigc-card__body h3{font-size:var(--md-sys-typescale-title-large-size);line-height:1.35;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.aigc-card__body p{margin:0;font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface-variant)}
.aigc-card__meta{color:var(--md-sys-color-primary)!important;font-weight:500;font-size:var(--md-sys-typescale-label-large-size)!important}
.aigc-card__src{
  padding-top:12px;border-top:1px solid var(--md-sys-color-outline-variant);
  font-size:var(--md-sys-typescale-body-small-size)!important;margin-top:auto!important;
}
.aigc-card__link{margin-top:14px;align-self:flex-start}

.feature-card{
  display:grid;grid-template-columns:minmax(0,.55fr) minmax(0,1.45fr);
  gap:clamp(24px,4vw,48px);align-items:center;
  margin-top:clamp(32px,4vw,52px);
  padding:clamp(20px,3vw,32px);
  background:var(--md-sys-color-secondary-container);
  color:var(--md-sys-color-on-secondary-container);
  border-radius:var(--md-sys-shape-corner-large);
}
.feature-card figure img{max-width:280px;margin:0 auto}
.feature-card h3{margin-bottom:12px}
.feature-card p{color:inherit;opacity:.94}
.feature-card .eyebrow{color:var(--md-sys-color-primary)}
.feature-card .eyebrow::after{background:var(--md-sys-color-primary)}
.feature-card .btn--filled{background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary)}

/* ============================================================
   角色条
   ============================================================ */
.role-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:clamp(24px,3vw,36px)}
.role-strip li{background:var(--md-sys-color-surface-container);border-radius:var(--md-sys-shape-corner-medium);padding:20px 16px;text-align:center}
.role-strip b{display:block;font-size:var(--md-sys-typescale-title-medium-size);font-weight:500;color:var(--md-sys-color-primary);margin-bottom:2px}
.role-strip span{font-size:var(--md-sys-typescale-body-small-size);color:var(--md-sys-color-on-surface-variant)}

/* ============================================================
   图文类
   ============================================================ */
.mp-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,2vw,20px)}
.mp-grid figure img{aspect-ratio:3/4;object-fit:cover;object-position:top center}

.link-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:20px}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border-radius:var(--md-sys-shape-corner-medium);
  background:var(--md-sys-color-surface-container);
  color:var(--md-sys-color-on-surface);
  font-size:var(--md-sys-typescale-body-medium-size);
  transition:background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.link-list a:hover{background:var(--md-sys-color-surface-container-high)}
.link-list a svg{width:18px;height:18px;fill:var(--md-sys-color-primary);flex-shrink:0}

.guanjie{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(0,.85fr);gap:clamp(20px,3vw,40px);align-items:center}
.guanjie > figure:first-child{flex:1 1 auto;min-width:0}
.guanjie .qr{width:clamp(140px,18vw,190px)}
.guanjie-stats{display:flex;flex-direction:column;gap:16px}
.guanjie-stat b{display:block;font-size:40px;line-height:1.1;font-weight:400;color:var(--md-sys-color-primary)}
.guanjie-stat span{font-size:var(--md-sys-typescale-body-small-size);color:var(--md-sys-color-on-surface-variant)}

.photo-block{margin-bottom:clamp(32px,4vw,52px)}
.photo-block:last-child{margin-bottom:0}
.photo-block__head{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.photo-block__head h4{font-size:var(--md-sys-typescale-headline-small-size);font-weight:400}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--md-sys-shape-corner-small);
  font-size:var(--md-sys-typescale-label-medium-size);font-weight:500;
  background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary);
}
.badge--tertiary{background:var(--md-sys-color-tertiary);color:var(--md-sys-color-on-tertiary)}
.badge--small{height:22px;padding:0 8px;font-size:var(--md-sys-typescale-label-small-size)}
.photo-block p{color:var(--md-sys-color-on-surface-variant);font-size:var(--md-sys-typescale-body-medium-size);max-width:72ch}

/* ============================================================
   实践经历
   ============================================================ */
.prac{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:clamp(24px,4vw,48px);align-items:start;padding:clamp(24px,3vw,40px) 0}
.prac + .prac{border-top:1px solid var(--md-sys-color-outline-variant)}
.prac--rev .prac__media{order:2}
.prac__text h3{margin-bottom:12px}
.prac__role{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;margin-bottom:14px;
  border-radius:var(--md-sys-shape-corner-small);
  background:var(--md-sys-color-secondary-container);
  color:var(--md-sys-color-on-secondary-container);
  font-size:var(--md-sys-typescale-label-medium-size);font-weight:500;
}
.prac__text p{color:var(--md-sys-color-on-surface-variant);font-size:var(--md-sys-typescale-body-medium-size)}
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.media-grid figure img{aspect-ratio:4/3;object-fit:cover}

.cert-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,3vw,32px);margin-top:clamp(24px,3vw,40px)}
.cert-grid figure{display:flex;flex-direction:column}
.cert-grid figure img{max-height:640px;width:auto;max-width:100%;margin:0 auto;object-fit:contain}

/* ============================================================
   技能 / CTA / 页脚
   ============================================================ */
.skill-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(12px,2vw,20px)}
.skill-card{padding:24px;display:flex;flex-direction:column;gap:12px}
.skill-card h3{font-size:var(--md-sys-typescale-title-large-size);color:var(--md-sys-color-primary)}
.skill-card p{margin:0;color:var(--md-sys-color-on-surface-variant);font-size:var(--md-sys-typescale-body-medium-size)}

.cta-band{
  margin-top:clamp(32px,4vw,56px);padding:clamp(24px,3.5vw,40px);
  border-radius:var(--md-sys-shape-corner-large);
  background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h3{margin-bottom:6px}
.cta-band p{margin:0;color:inherit;opacity:.88;font-size:var(--md-sys-typescale-body-medium-size)}
.cta-band .btn--filled{background:var(--md-sys-color-surface);color:var(--md-sys-color-primary)}
.cta-band .btn--outlined{color:var(--md-sys-color-on-primary);box-shadow:inset 0 0 0 1px currentColor}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px}

.footer{background:var(--md-sys-color-surface-container);padding:clamp(32px,4vw,56px) 0 24px}
.footer__row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;padding-bottom:24px}
.footer__name{font-size:var(--md-sys-typescale-title-large-size);margin:0 0 4px}
.footer a{color:var(--md-sys-color-on-surface-variant)}
.footer a:hover{color:var(--md-sys-color-primary)}
.footer__links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:var(--md-sys-typescale-body-medium-size);align-items:center}
.copyright{font-size:var(--md-sys-typescale-body-small-size);color:var(--md-sys-color-on-surface-variant);margin:0}

/* ============================================================
   对话框（图片预览）— M3 basic dialog
   ============================================================ */
.scrim{
  position:fixed;inset:0;z-index:200;
  background:color-mix(in srgb,var(--md-sys-color-scrim) 32%,transparent);
  display:grid;place-items:center;padding:clamp(12px,3vw,48px);
  opacity:0;transition:opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}
.scrim.open{opacity:1}
.scrim[hidden]{display:none}
.dialog{
  position:relative;max-width:min(1100px,100%);max-height:100%;
  background:var(--md-sys-color-surface-container-high);
  border-radius:var(--md-sys-shape-corner-extra-large);
  box-shadow:var(--md-sys-elevation-level3);
  padding:clamp(12px,2vw,20px);
  display:flex;flex-direction:column;gap:12px;
  transform:scale(.94);
  transition:transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}
.scrim.open .dialog{transform:none}
.dialog img{max-width:100%;max-height:calc(86vh - 110px);width:auto;margin:0 auto;border-radius:var(--md-sys-shape-corner-small);object-fit:contain}
.dialog__cap{margin:0;text-align:center;font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface-variant);padding:0 8px}
.dialog__actions{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:4px}
.dialog__close{position:absolute;top:6px;right:6px;background:var(--md-sys-color-surface-container-highest);color:var(--md-sys-color-on-surface)}

/* ============================================================
   简历页
   ============================================================ */
.rsm-head{padding:clamp(32px,5vw,56px) 0 clamp(20px,3vw,32px)}
.rsm-head__top{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:clamp(24px,4vw,48px);align-items:end}
.rsm-head h1{font-size:clamp(36px,6vw,56px);line-height:1.05;font-weight:400;margin-bottom:10px}
.locale-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.rsm-contact{display:grid;gap:2px}
.rsm-contact li{
  display:grid;grid-template-columns:80px 1fr;gap:16px;
  padding:12px 0;border-bottom:1px solid var(--md-sys-color-outline-variant);
  font-size:var(--md-sys-typescale-body-medium-size);
}
.rsm-contact .k{color:var(--md-sys-color-on-surface-variant);font-weight:500}
.rsm-contact a{color:var(--md-sys-color-primary)}

.rsm-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:clamp(24px,4vw,56px);align-items:start}
.rsm-aside{position:sticky;top:calc(var(--app-bar-h) + 16px);display:grid;gap:16px}
.aside-card{padding:20px}
.aside-card h3{font-size:var(--md-sys-typescale-title-medium-size);color:var(--md-sys-color-primary);margin-bottom:16px}

.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--md-sys-color-outline-variant)}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--md-sys-color-primary-container);
  box-shadow:inset 0 0 0 3px var(--md-sys-color-primary);
}
.tl-date{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;margin-bottom:8px;
  border-radius:var(--md-sys-shape-corner-full);
  background:var(--md-sys-color-surface-container-high);
  color:var(--md-sys-color-on-surface-variant);
  font-size:var(--md-sys-typescale-label-medium-size);font-weight:500;
}
.tl-item h3{margin-bottom:4px}
.tl-item h3 em{font-style:normal;font-weight:400;color:var(--md-sys-color-on-surface-variant);font-size:.82em}
.tl-sub{font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface-variant);margin:0 0 8px}
.bul{display:grid;gap:8px;margin-top:8px}
.bul li{position:relative;padding-left:18px;font-size:var(--md-sys-typescale-body-medium-size);color:var(--md-sys-color-on-surface-variant)}
.bul li::before{content:"";position:absolute;left:2px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--md-sys-color-primary)}
.gpa{display:inline-flex;align-items:baseline;gap:6px}
.gpa b{font-size:28px;font-weight:400;color:var(--md-sys-color-primary);line-height:1}

/* ============================================================
   入场动画（仅 JS 可用时）
   ============================================================ */
.js .reveal{
  opacity:0;transform:translateY(16px);
  transition:opacity var(--md-sys-motion-duration-long2) var(--md-sys-motion-easing-emphasized),
             transform var(--md-sys-motion-duration-long2) var(--md-sys-motion-easing-emphasized);
}
.js .reveal.in{opacity:1;transform:none}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .hero__grid,.split,.split--wide-right,.rsm-head__top,.rsm-layout,.feature-card{grid-template-columns:1fr}
  .rsm-aside{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .role-strip{grid-template-columns:repeat(3,minmax(0,1fr))}
  .prac,.prac--rev .prac__media{grid-template-columns:1fr;order:0}
  .guanjie{grid-template-columns:1fr;justify-items:center;text-align:center}
  .link-list{grid-template-columns:1fr}
  .skill-grid{grid-template-columns:1fr}
}

@media (max-width:840px){
  .m3-nav{
    position:fixed;left:0;right:0;top:var(--app-bar-h);
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--md-sys-color-surface-container);
    padding:12px var(--app-gutter) 20px;
    border-radius:0 0 var(--md-sys-shape-corner-large) var(--md-sys-shape-corner-large);
    box-shadow:var(--md-sys-elevation-level2);
    transform:translateY(-130%);
    transition:transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
  }
  .m3-nav.open{transform:none}
  .m3-nav a{height:48px;justify-content:flex-start;border-radius:var(--md-sys-shape-corner-full)}
  .nav-toggle{display:grid}
  .top-app-bar__actions .btn--tonal{display:none}
}

@media (max-width:600px){
  .card-grid,.role-strip,.media-grid,.cert-grid,.stat-grid,.rsm-aside{grid-template-columns:1fr}
  .mp-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero__name{font-size:40px}
  .section{padding:40px 0}
  .dialog{border-radius:var(--md-sys-shape-corner-large)}
}

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

@media print{
  .top-app-bar,.scrim,.hero__actions,.cta-band__actions,.skip-link,.nav-toggle{display:none!important}
  body{background:#fff}
  .section{padding:18px 0;break-inside:avoid}
  .section--tonal{background:#fff}
  .js .reveal{opacity:1!important;transform:none!important}
  .card,.aside-card{box-shadow:inset 0 0 0 1px #ccc!important}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:8pt;color:#666}
}