/* =========================================================
   新记看台 · 共享样式 /assets/site.css
   头部、页脚、通用组件、栅格与媒体容器
   ========================================================= */

/* ---------- 1. 重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, dl, figure, blockquote { margin: 0; }

ul, ol { padding: 0; list-style: none; }

img, svg, picture, video { max-width: 100%; }
img { display: block; height: auto; }

button { font: inherit; color: inherit; }

table { border-collapse: collapse; }

/* ---------- 2. 设计变量 ---------- */
:root {
  --ink: #07100C;
  --night: #0B1F18;
  --stand: #123A2A;
  --pitch: #2F7D4E;
  --lime: #DDF247;
  --signal: #FF6A3D;
  --chalk: #F4F7F2;
  --mist: #C9D6DF;
  --paper: #E8E3D3;

  --shell: 1220px;
  --gutter: clamp(16px, 4vw, 44px);
  --line: rgba(201, 214, 223, .16);
  --line-strong: rgba(201, 214, 223, .34);
  --radius: 2px;

  --font-display: "Arial Narrow", "Helvetica Neue Condensed", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "SFMono-Regular", "Roboto Mono", "DejaVu Sans Mono", Consolas, "Courier New", monospace;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;

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

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background: var(--night);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.005em;
  color: var(--chalk);
  text-wrap: balance;
}

h1 {
  font-size: clamp(30px, 5vw, 52px);
  text-transform: uppercase;
  letter-spacing: -.015em;
}

h2 { font-size: clamp(22px, 3vw, 32px); }
h3 { font-size: clamp(18px, 2.2vw, 22px); }
h4 { font-size: 17px; }

p { margin-bottom: .9em; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--lime);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(221, 242, 71, .45);
}

a:hover { text-decoration-color: var(--lime); }

strong, b { font-weight: 700; }

::selection {
  background: var(--lime);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--mist);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(221, 242, 71, .32);
  border-radius: var(--radius);
}

:where([id]) { scroll-margin-top: 150px; }

/* ---------- 4. 布局容器与节奏 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(28px, 5vw, 56px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: .01em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lime);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--lime);
  flex: 0 0 auto;
}

.lede {
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.78;
  color: rgba(244, 247, 242, .9);
  max-width: 62ch;
}

.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }

/* ---------- 5. 通用组件 ---------- */
.panel {
  --cut: 22px;
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(160deg, rgba(18, 58, 42, .96), rgba(11, 31, 24, .96));
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - var(--cut)) 0,
    100% var(--cut),
    100% 100%,
    var(--cut) 100%,
    0 calc(100% - var(--cut))
  );
}

.panel--paper {
  background: var(--paper);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(7, 16, 12, .14);
}

.panel--paper h2,
.panel--paper h3,
.panel--paper h4,
.panel--paper .section-title { color: var(--ink); }

.panel--paper a { color: var(--ink); text-decoration-color: rgba(7, 16, 12, .35); }

.card {
  position: relative;
  padding: clamp(16px, 2vw, 22px);
  background: rgba(18, 58, 42, .72);
  box-shadow: inset 0 0 0 1px var(--line);
  transition:
    transform .2s var(--ease),
    background-color .2s var(--ease),
    box-shadow .2s var(--ease);
}

.card:hover,
.card:focus-within {
  transform: translateY(-3px);
  background: rgba(18, 58, 42, .95);
  box-shadow: inset 0 0 0 1px var(--lime), 0 18px 34px -26px rgba(0, 0, 0, .95);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--radius);
  background: rgba(47, 125, 78, .3);
  color: var(--chalk);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .06em;
  line-height: 1.6;
}

.tag--lime {
  background: var(--lime);
  color: var(--ink);
}

.tag--signal {
  background: rgba(255, 106, 61, .16);
  color: var(--signal);
  box-shadow: inset 0 0 0 1px rgba(255, 106, 61, .48);
}

.tag--dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform .16s var(--ease),
    background-color .16s var(--ease),
    color .16s var(--ease),
    border-color .16s var(--ease),
    box-shadow .16s var(--ease);
}

.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn--sm {
  padding: 7px 12px;
  font-size: 11px;
  letter-spacing: .08em;
}

.btn--lime {
  background: var(--lime);
  color: var(--ink);
}

.btn--lime:hover { background: #ecff77; }

.btn--signal {
  background: var(--signal);
  color: var(--ink);
}

.btn--signal:hover { background: #ff8a63; }

.btn--ghost {
  background: transparent;
  color: var(--chalk);
  border-color: var(--line-strong);
}

.btn--ghost:hover {
  color: var(--lime);
  border-color: var(--lime);
  background: rgba(221, 242, 71, .08);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--lime);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}

.link-arrow::after { content: "→"; }

.link-arrow:hover { border-bottom-color: var(--lime); }

.breadcrumbs {
  font-size: 12px;
  color: rgba(201, 214, 223, .7);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li::after {
  content: "/";
  color: rgba(201, 214, 223, .35);
}

.breadcrumbs li:last-child::after { content: none; }

.breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
}

.breadcrumbs a:hover { color: var(--lime); }

/* ---------- 6. 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--stand);
}

.media > img,
.media > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media--turf {
  background-image: repeating-linear-gradient(
    90deg,
    rgba(47, 125, 78, .9) 0 40px,
    rgba(18, 58, 42, .9) 40px 80px
  );
}

.media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 7px 10px;
  background: rgba(7, 16, 12, .74);
  color: var(--chalk);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .06em;
}

/* ---------- 7. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--night);
  isolation: isolate;
  box-shadow: 0 1px 0 var(--line), 0 18px 40px -32px rgba(0, 0, 0, .95);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -64px;
  z-index: 130;
  padding: 10px 16px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top .18s var(--ease);
}

.skip-link:focus { top: 10px; }

.scroll-progress {
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 3px;
  z-index: 10;
  pointer-events: none;
}

.scroll-progress > span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--pitch), var(--lime));
  transition: transform .12s linear;
}

/* 上层品牌说明轨 */
.rail {
  background: var(--ink);
  border-bottom: 1px solid rgba(201, 214, 223, .12);
}

.rail__inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 7px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: .09em;
  color: var(--mist);
}

.rail__brand::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(221, 242, 71, .18);
  flex: 0 0 auto;
}

.rail__meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.rail__tag {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(201, 214, 223, .72);
  white-space: nowrap;
}

/* 下层品牌 + 导航 */
.masthead {
  position: relative;
  background: linear-gradient(180deg, var(--stand), #0F3123);
  border-bottom: 1px solid rgba(47, 125, 78, .55);
}

.masthead__inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 12px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--chalk);
  text-decoration: none;
}

.brand:hover { color: var(--lime); text-decoration: none; }

.brand__mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.brand__text {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .07em;
  line-height: 1.15;
  white-space: nowrap;
}

.brand__sub {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(201, 214, 223, .66);
  white-space: nowrap;
}

.site-nav { display: flex; align-items: center; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__item { display: block; min-width: 0; }

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 12px 12px;
  color: rgba(244, 247, 242, .8);
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color .16s var(--ease), background-color .16s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .18s var(--ease);
}

.site-nav__link:hover {
  color: var(--lime);
  background: rgba(221, 242, 71, .07);
  text-decoration: none;
}

.site-nav__link:focus-visible {
  outline: 2px solid var(--mist);
  outline-offset: -2px;
  box-shadow: inset 0 0 0 4px rgba(221, 242, 71, .28);
}

.site-nav__num {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: .06em;
  color: rgba(201, 214, 223, .55);
  transition: color .16s var(--ease);
}

.site-nav__link[aria-current="page"] {
  color: var(--lime);
  text-decoration: none;
}

.site-nav__link[aria-current="page"] .site-nav__num { color: var(--lime); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--chalk);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--lime);
  transition: transform .18s var(--ease);
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }

.site-header[data-open="true"] .nav-toggle__bars::before {
  transform: translateY(5px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__bars::after {
  transform: translateY(-5px) rotate(-45deg);
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 8vw, 96px);
  background: var(--ink);
  border-top: 1px solid var(--line);
  color: var(--mist);
}

.site-footer__inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(32px, 5vw, 56px) var(--gutter) 20px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.site-footer__lead { min-width: 0; }

.site-footer__brand {
  max-width: 24ch;
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.42;
  letter-spacing: .01em;
  color: var(--chalk);
  padding-left: 14px;
  border-left: 3px solid var(--pitch);
}

.site-footer__contact {
  display: grid;
  gap: 8px;
  margin: 0 0 16px;
  font-size: 13px;
  font-family: var(--font-num);
}

.site-footer__contact li {
  display: grid;
  grid-template-columns: 5.2em minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.site-footer__key {
  color: rgba(201, 214, 223, .62);
  font-size: 11px;
  letter-spacing: .08em;
}

.site-footer__val {
  color: var(--chalk);
  line-height: 1.6;
  word-break: break-word;
}

.site-footer__note {
  max-width: 46ch;
  font-size: 12px;
  line-height: 1.75;
  color: rgba(201, 214, 223, .68);
}

.site-footer__col { min-width: 0; }

.site-footer__col-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lime);
}

.site-footer__links {
  display: grid;
  gap: 11px;
}

.site-footer__links a {
  position: relative;
  display: inline-block;
  padding-left: 14px;
  color: rgba(244, 247, 242, .84);
  font-size: 14px;
  text-decoration: none;
  transition: color .16s var(--ease);
}

.site-footer__links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 2px;
  background: var(--pitch);
  transition: width .16s var(--ease), background-color .16s var(--ease);
}

.site-footer__links a:hover {
  color: var(--lime);
  text-decoration: none;
}

.site-footer__links a:hover::before {
  width: 11px;
  background: var(--lime);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(201, 214, 223, .62);
}

.site-footer__copy,
.site-footer__icp,
.site-footer__domain { margin: 0; }

.site-footer__domain { color: rgba(201, 214, 223, .45); }

/* ---------- 9. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: clamp(12px, 3vw, 28px);
  bottom: clamp(12px, 3vw, 28px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 0;
  border-radius: var(--radius);
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s linear;
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover { background: #ecff77; }

/* ---------- 10. 响应式 ---------- */
@media (max-width: 1080px) {
  .site-nav__link {
    font-size: 14px;
    padding: 10px 9px 12px;
  }
  .site-nav__link::after { left: 9px; right: 9px; }
  .brand__sub { display: none; }
}

@media (max-width: 980px) {
  .grid--split { grid-template-columns: minmax(0, 1fr); }
  .site-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .site-footer__lead { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .rail__tag { display: none; }
  .rail__inner { padding-block: 6px; }
  .rail__brand { font-size: 11px; letter-spacing: .04em; }

  .masthead__inner {
    padding-block: 10px;
    gap: 12px;
  }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: block;
    padding: 10px var(--gutter) 22px;
    background: var(--night);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 26px 48px -34px rgba(0, 0, 0, .95);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s linear;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }

  .site-header[data-open="true"] .site-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .site-nav__list {
    display: grid;
    gap: 0;
  }

  .site-nav__link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 15px 12px;
    font-size: 16px;
    box-shadow: inset 3px 0 0 transparent;
    border-bottom: 1px solid rgba(201, 214, 223, .12);
  }

  .site-nav__link::after { display: none; }

  .site-nav__num { order: 2; font-size: 11px; }

  .site-nav__link[aria-current="page"] {
    background: rgba(221, 242, 71, .08);
    box-shadow: inset 3px 0 0 var(--lime);
  }
}

@media (max-width: 860px) {
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .grid--2 { grid-template-columns: minmax(0, 1fr); }
  .site-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .site-footer__contact li { grid-template-columns: 4.6em minmax(0, 1fr); }
  .site-footer__base { justify-content: flex-start; }
}

@media (max-width: 520px) {
  .rail__brand { display: none; }
  .rail__inner { justify-content: flex-end; }
  .brand__mark { width: 36px; height: 36px; font-size: 17px; }
  .brand__name { font-size: 17px; letter-spacing: .04em; }
}

/* ---------- 11. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  .card:hover,
  .card:focus-within,
  .btn:active { transform: none; }

  .site-nav__link::after { transition: none; }
}