/* ============================================================
   顺发体育 · 共享样式 /assets/site.css
   战术板 × 赛季刊物：深墨绿画布、橙色路径高亮、荧光更新标记
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --sf-ink-green: #071C17;
  --sf-deep-forest: #0E3027;
  --sf-pine: #1B5344;
  --sf-paper: #F1EEE4;
  --sf-bone: #DCD6C7;
  --sf-orange: #FF6B2C;
  --sf-lime: #C6FF4A;
  --sf-steel: #8FA9B8;
  --sf-text: #10231D;
  --sf-muted: #566A61;
  --sf-line: #2C4C42;

  --sf-line-soft: rgba(44, 76, 66, .26);
  --sf-line-dark: rgba(143, 169, 184, .22);
  --sf-on-dark: #EDEBE1;
  --sf-on-dark-muted: #9AB0A6;
  --sf-focus: var(--sf-orange);

  --sf-font-head: "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --sf-font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sf-font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --sf-max: 1280px;
  --sf-gutter: clamp(16px, 4vw, 48px);
  --sf-space: clamp(28px, 5vw, 64px);
  --sf-radius: 2px;
  --sf-ease: cubic-bezier(.2, .7, .25, 1);
  --sf-shadow: 0 1px 0 rgba(7, 28, 23, .05), 0 18px 40px -32px rgba(7, 28, 23, .7);
  --sf-z-header: 80;
}

/* ---------- 2. reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

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

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button { background: none; border: 0; cursor: pointer; }

a { color: inherit; text-decoration: none; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  font-family: var(--sf-font-body);
  font-size: clamp(16px, .55vw + 14.4px, 17.5px);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: .01em;
  color: var(--sf-text);
  background-color: var(--sf-paper);
  background-image:
    linear-gradient(rgba(44, 76, 66, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 76, 66, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, .sf-h {
  font-family: var(--sf-font-head);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
}

h1 { font-size: clamp(38px, 7vw, 84px); }
h2 { font-size: clamp(28px, 3.6vw, 50px); }
h3 { font-size: clamp(20px, 2vw, 28px); }
h4 { font-size: clamp(17px, 1.4vw, 20px); }

p { text-wrap: pretty; }

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

/* ---------- 4. 焦点与可访问性 ---------- */
:focus-visible {
  outline: 2px solid var(--sf-focus);
  outline-offset: 3px;
  border-radius: 1px;
}

.sf-header :focus-visible,
.sf-footer :focus-visible,
.sf-band--ink :focus-visible,
.sf-band--forest :focus-visible {
  outline-color: var(--sf-lime);
}

.sf-visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 5. 页头：刊头 + 编号导航 ---------- */
.sf-header {
  position: sticky;
  top: 0;
  z-index: var(--sf-z-header);
  background: var(--sf-ink-green);
  color: var(--sf-on-dark);
  border-bottom: 1px solid var(--sf-line);
  box-shadow: 0 14px 30px -30px rgba(0, 0, 0, .9);
}

.sf-skip {
  position: absolute;
  left: clamp(12px, 4vw, 48px);
  top: -80px;
  z-index: 120;
  padding: 10px 18px;
  font-family: var(--sf-font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--sf-ink-green);
  background: var(--sf-lime);
  border-radius: var(--sf-radius);
  transition: top .18s var(--sf-ease);
}

.sf-skip:focus,
.sf-skip:focus-visible {
  top: 10px;
}

.sf-progress {
  position: relative;
  height: 3px;
  background: rgba(143, 169, 184, .16);
  overflow: hidden;
}

.sf-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--sf-pine) 0%, var(--sf-steel) 32%, var(--sf-orange) 74%, var(--sf-lime) 100%);
  transition: width .12s linear;
}

.sf-header__inner {
  width: 100%;
  max-width: var(--sf-max);
  margin-inline: auto;
  padding-inline: var(--sf-gutter);
}

.sf-masthead {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(12px, 2.4vw, 36px);
  padding-block: clamp(10px, 1.5vw, 16px);
}

/* 品牌报头 */
.sf-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: inherit;
}

.sf-brand__mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: clamp(34px, 3.4vw, 42px);
  height: clamp(34px, 3.4vw, 42px);
  background: var(--sf-orange);
  color: var(--sf-ink-green);
  transform: skewX(-10deg);
  border-radius: 1px;
  box-shadow: var(--sf-shadow);
}

.sf-brand__glyph {
  display: block;
  font-family: var(--sf-font-head);
  font-size: clamp(12px, 1.2vw, 15px);
  font-weight: 800;
  letter-spacing: .06em;
  transform: skewX(10deg);
}

.sf-brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.sf-brand__name {
  font-family: var(--sf-font-head);
  font-size: clamp(19px, 1.9vw, 25px);
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.1;
  color: var(--sf-on-dark);
}

.sf-brand__tagline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sf-font-mono);
  font-size: 10px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--sf-on-dark-muted);
}

.sf-brand__tagline::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--sf-lime);
  transform: rotate(45deg);
}

/* 刊头题词 */
.sf-masthead__slogan {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--sf-steel);
  white-space: nowrap;
}

.sf-masthead__slogan::before,
.sf-masthead__slogan::after {
  content: "";
  flex: 1 1 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(143, 169, 184, .55));
}

.sf-masthead__slogan::after {
  background: linear-gradient(90deg, rgba(143, 169, 184, .55), transparent);
}

.sf-masthead__slogan > span {
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 快捷入口 */
.sf-masthead__utility {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.sf-util {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-family: var(--sf-font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--sf-on-dark);
  border: 1px solid rgba(143, 169, 184, .38);
  border-radius: 1px;
  white-space: nowrap;
  transition: color .18s var(--sf-ease), border-color .18s var(--sf-ease), background-color .18s var(--sf-ease);
}

.sf-util:hover {
  color: var(--sf-lime);
  border-color: var(--sf-lime);
  background: rgba(198, 255, 74, .07);
}

.sf-util--accent {
  background: var(--sf-orange);
  border-color: var(--sf-orange);
  color: var(--sf-ink-green);
}

.sf-util--accent:hover {
  background: var(--sf-lime);
  border-color: var(--sf-lime);
  color: var(--sf-ink-green);
}

/* 导航带 */
.sf-navbar {
  background: var(--sf-deep-forest);
  border-top: 1px solid var(--sf-line);
}

.sf-navbar__inner {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: var(--sf-max);
  margin-inline: auto;
  padding-inline: var(--sf-gutter);
}

.sf-nav {
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--sf-pine) transparent;
}

.sf-nav::-webkit-scrollbar { height: 3px; }
.sf-nav::-webkit-scrollbar-track { background: transparent; }
.sf-nav::-webkit-scrollbar-thumb { background: var(--sf-pine); }

.sf-nav__list {
  display: flex;
  align-items: stretch;
  gap: clamp(2px, .8vw, 8px);
  counter-reset: sfnav;
}

.sf-nav__item {
  counter-increment: sfnav;
  flex: 0 0 auto;
}

.sf-nav__link {
  position: relative;
  display: block;
  padding: 13px 12px 12px;
  font-family: var(--sf-font-head);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--sf-on-dark);
  transition: color .18s var(--sf-ease), background-color .18s var(--sf-ease);
}

.sf-nav__link::before {
  content: counter(sfnav, decimal-leading-zero);
  margin-right: 7px;
  font-family: var(--sf-font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--sf-steel);
  transition: color .18s var(--sf-ease);
}

.sf-nav__link:hover,
.sf-nav__link:focus-visible {
  color: var(--sf-lime);
  background: rgba(198, 255, 74, .06);
}

.sf-nav__link:hover::before,
.sf-nav__link:focus-visible::before {
  color: var(--sf-lime);
}

.sf-nav__link[aria-current="page"] {
  color: var(--sf-orange);
  background: rgba(255, 107, 44, .08);
}

.sf-nav__link[aria-current="page"]::before {
  color: var(--sf-orange);
}

.sf-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 5px;
  height: 3px;
  background: var(--sf-orange);
  transform: skewX(-20deg);
}

/* 移动端按钮（桌面隐藏） */
.sf-navtoggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  font-family: var(--sf-font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--sf-on-dark);
  border: 1px solid rgba(143, 169, 184, .38);
  border-radius: 1px;
  transition: color .18s var(--sf-ease), border-color .18s var(--sf-ease);
}

.sf-navtoggle:hover {
  color: var(--sf-lime);
  border-color: var(--sf-lime);
}

.sf-navtoggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}

.sf-navtoggle__bars span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform .2s var(--sf-ease), opacity .2s var(--sf-ease);
}

.sf-navtoggle[aria-expanded="true"] .sf-navtoggle__bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.sf-navtoggle[aria-expanded="true"] .sf-navtoggle__bars span:nth-child(2) {
  opacity: 0;
}

.sf-navtoggle[aria-expanded="true"] .sf-navtoggle__bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

@keyframes sf-navdrop {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 6. 页脚：版权页 ---------- */
.sf-footer {
  background: var(--sf-ink-green);
  color: var(--sf-on-dark);
  border-top: 1px solid var(--sf-line);
  background-image:
    linear-gradient(160deg, rgba(27, 83, 68, .55) 0%, transparent 52%),
    linear-gradient(rgba(143, 169, 184, .05) 1px, transparent 1px);
  background-size: auto, 100% 32px;
}

.sf-footer__inner {
  display: grid;
  grid-template-columns: 1.15fr .85fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  width: 100%;
  max-width: var(--sf-max);
  margin-inline: auto;
  padding: clamp(36px, 6vw, 72px) var(--sf-gutter) clamp(28px, 4vw, 44px);
}

.sf-footer__brand { min-width: 0; }

.sf-footer__wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sf-font-head);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.1;
  color: var(--sf-on-dark);
}

.sf-footer__dot {
  width: 9px;
  height: 9px;
  background: var(--sf-lime);
  transform: rotate(45deg) translateY(-3px);
}

.sf-footer__tagline {
  margin-top: 8px;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--sf-steel);
}

.sf-footer__blurb {
  max-width: 30ch;
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sf-on-dark-muted);
}

.sf-footer__cta {
  margin-top: 22px;
}

.sf-footer__title {
  margin-bottom: 14px;
  padding-bottom: 10px;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--sf-steel);
  border-bottom: 1px solid var(--sf-line);
}

.sf-footer__nav { min-width: 0; }

.sf-footer__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 22px;
}

.sf-footer__link {
  display: block;
  padding: 7px 0;
  font-size: 15px;
  color: var(--sf-on-dark);
  border-bottom: 1px solid rgba(143, 169, 184, .13);
  transition: color .18s var(--sf-ease), transform .18s var(--sf-ease);
}

.sf-footer__link:hover,
.sf-footer__link:focus-visible {
  color: var(--sf-lime);
  transform: translateX(3px);
}

.sf-footer__contact { min-width: 0; }

.sf-contact {
  display: grid;
  gap: 0;
}

.sf-contact__row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(143, 169, 184, .18);
}

.sf-contact__label {
  font-family: var(--sf-font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sf-steel);
  padding-top: 3px;
}

.sf-contact__value {
  font-family: var(--sf-font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--sf-on-dark);
  overflow-wrap: anywhere;
}

.sf-copywrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.sf-copy {
  padding: 7px 14px;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sf-on-dark);
  border: 1px solid rgba(143, 169, 184, .38);
  border-radius: 1px;
  transition: color .18s var(--sf-ease), border-color .18s var(--sf-ease), background-color .18s var(--sf-ease);
}

.sf-copy:hover {
  color: var(--sf-lime);
  border-color: var(--sf-lime);
  background: rgba(198, 255, 74, .07);
}

.sf-copy[data-copied="true"] {
  color: var(--sf-ink-green);
  background: var(--sf-lime);
  border-color: var(--sf-lime);
}

.sf-copy__status {
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--sf-lime);
}

.sf-footer__note {
  margin-top: 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--sf-on-dark-muted);
}

.sf-footer__bottom {
  margin-top: clamp(8px, 2vw, 20px);
  border-top: 1px solid var(--sf-line);
}

.sf-footer__bottomrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  width: 100%;
  max-width: var(--sf-max);
  margin-inline: auto;
  padding: 18px var(--sf-gutter) 30px;
  font-family: var(--sf-font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--sf-on-dark-muted);
}

.sf-footer__icp { color: var(--sf-steel); }

.sf-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.sf-footer__legallink {
  padding-bottom: 1px;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--sf-ease), border-color .18s var(--sf-ease);
}

.sf-footer__legallink:hover,
.sf-footer__legallink:focus-visible {
  color: var(--sf-lime);
  border-bottom-color: var(--sf-lime);
}

/* ---------- 7. 通用布局 ---------- */
.sf-container {
  width: 100%;
  max-width: var(--sf-max);
  margin-inline: auto;
  padding-inline: var(--sf-gutter);
}

.sf-band {
  padding-block: var(--sf-space);
}

.sf-band--ink {
  background-color: var(--sf-ink-green);
  color: var(--sf-on-dark);
  background-image: linear-gradient(rgba(143, 169, 184, .06) 1px, transparent 1px);
  background-size: 100% 40px;
}

.sf-band--forest {
  background-color: var(--sf-deep-forest);
  color: var(--sf-on-dark);
}

.sf-band--paper { background-color: var(--sf-paper); }

.sf-band--bone {
  background-color: var(--sf-bone);
  color: var(--sf-text);
}

.sf-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 32px);
}

.sf-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sf-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sf-grid--split { grid-template-columns: 5fr 7fr; }
.sf-grid--split-rev { grid-template-columns: 7fr 5fr; }

.sf-rule {
  border: 0;
  border-top: 1px solid var(--sf-line-soft);
  margin-block: 24px;
}

.sf-rule--dark { border-top-color: var(--sf-line-dark); }

/* ---------- 8. 按钮 / 标签 / 数据 ---------- */
.sf-btn {
  --sf-btn-bg: var(--sf-pine);
  --sf-btn-fg: var(--sf-on-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55em;
  padding: 12px 20px;
  font-family: var(--sf-font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.35;
  color: var(--sf-btn-fg);
  background: var(--sf-btn-bg);
  border: 1px solid transparent;
  border-radius: var(--sf-radius);
  cursor: pointer;
  transition: transform .18s var(--sf-ease), background-color .18s var(--sf-ease), color .18s var(--sf-ease), border-color .18s var(--sf-ease);
}

.sf-btn:hover { transform: translateX(2px); }

.sf-btn--solid {
  --sf-btn-bg: var(--sf-orange);
  --sf-btn-fg: var(--sf-ink-green);
}

.sf-btn--solid:hover { --sf-btn-bg: #ff8250; }

.sf-btn--lime {
  --sf-btn-bg: var(--sf-lime);
  --sf-btn-fg: var(--sf-ink-green);
}

.sf-btn--lime:hover { --sf-btn-bg: #d4ff72; }

.sf-btn--ghost {
  --sf-btn-bg: transparent;
  --sf-btn-fg: var(--sf-on-dark);
  border-color: rgba(143, 169, 184, .42);
}

.sf-btn--ghost:hover {
  --sf-btn-fg: var(--sf-lime);
  border-color: var(--sf-lime);
  background: rgba(198, 255, 74, .07);
}

.sf-btn--outline {
  --sf-btn-bg: transparent;
  --sf-btn-fg: var(--sf-text);
  border-color: var(--sf-line-soft);
}

.sf-btn--outline:hover {
  --sf-btn-fg: var(--sf-ink-green);
  border-color: var(--sf-orange);
  background: rgba(255, 107, 44, .1);
}

.sf-btn--sm {
  padding: 8px 14px;
  font-size: 13px;
}

.sf-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font-family: var(--sf-font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  line-height: 1.5;
  color: var(--sf-text);
  background: var(--sf-bone);
  border-radius: 1px;
}

.sf-label--lime {
  background: var(--sf-lime);
  color: var(--sf-ink-green);
}

.sf-label--orange {
  background: var(--sf-orange);
  color: var(--sf-ink-green);
}

.sf-label--quiet {
  background: transparent;
  border: 1px solid var(--sf-line-soft);
  color: var(--sf-muted);
}

.sf-data {
  font-family: var(--sf-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

/* ---------- 9. 面包屑 ---------- */
.sf-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sf-muted);
}

.sf-breadcrumb__link {
  color: inherit;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--sf-ease), border-color .18s var(--sf-ease);
}

.sf-breadcrumb__link:hover,
.sf-breadcrumb__link:focus-visible {
  color: var(--sf-orange);
  border-bottom-color: currentColor;
}

.sf-breadcrumb__sep {
  color: var(--sf-steel);
}

.sf-breadcrumb__current { color: var(--sf-text); }

.sf-breadcrumb--dark { color: var(--sf-on-dark-muted); }
.sf-breadcrumb--dark .sf-breadcrumb__current { color: var(--sf-lime); }
.sf-breadcrumb--dark .sf-breadcrumb__link:hover,
.sf-breadcrumb--dark .sf-breadcrumb__link:focus-visible { color: var(--sf-lime); }

/* ---------- 10. 正文阅读区 ---------- */
.sf-prose {
  max-width: 70ch;
  font-size: 1.0625rem;
  line-height: 1.78;
}

.sf-prose > * + * { margin-top: 1.05em; }

.sf-prose h2 {
  margin-top: 1.9em;
  font-size: clamp(24px, 2.8vw, 34px);
}

.sf-prose h3 {
  margin-top: 1.6em;
  font-size: clamp(18px, 1.8vw, 23px);
}

.sf-prose a {
  color: var(--sf-pine);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.sf-prose a:hover { color: var(--sf-orange); }

.sf-prose ul,
.sf-prose ol {
  padding-left: 1.35em;
  list-style: disc;
}

.sf-prose ol { list-style: decimal; }

.sf-prose li + li { margin-top: .45em; }

.sf-prose blockquote {
  padding-left: 1em;
  border-left: 3px solid var(--sf-orange);
  font-family: var(--sf-font-head);
  font-size: 1.05em;
  color: var(--sf-muted);
}

.sf-prose code {
  padding: 2px 6px;
  font-family: var(--sf-font-mono);
  font-size: .92em;
  background: var(--sf-bone);
  border-radius: 1px;
}

.sf-prose--dark { color: var(--sf-on-dark); }
.sf-prose--dark a { color: var(--sf-lime); }
.sf-prose--dark blockquote { color: var(--sf-on-dark-muted); }
.sf-prose--dark code { background: var(--sf-pine); }

/* ---------- 11. 图片容器基础规则 ---------- */
.sf-media {
  position: relative;
  display: block;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--sf-deep-forest);
  border: 1px solid var(--sf-line-soft);
  border-radius: 1px;
}

.sf-media img,
.sf-media picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.94) contrast(1.04);
}

.sf-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 -70px 90px -70px rgba(7, 28, 23, .92);
}

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

.sf-media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 10px 14px;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--sf-on-dark);
  background: linear-gradient(transparent, rgba(7, 28, 23, .82));
}

/* ---------- 12. 滚动交互状态（JS 协议） ---------- */
[data-spy-link][data-active="true"] {
  color: var(--sf-orange);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--sf-ease), transform .5s var(--sf-ease);
}

[data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: none;
}

/* ---------- 13. 响应式：平板 ---------- */
@media (max-width: 1024px) {
  .sf-masthead__slogan {
    font-size: 10px;
    letter-spacing: .14em;
  }

  .sf-footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .sf-footer__contact {
    grid-column: 1 / -1;
  }

  .sf-footer__blurb { max-width: 42ch; }

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

/* ---------- 14. 响应式：移动端导航 ---------- */
@media (max-width: 860px) {
  .sf-navbar__inner {
    flex-wrap: wrap;
    gap: 0;
    padding-block: 0;
  }

  .sf-navtoggle {
    display: inline-flex;
    margin: 9px 0;
  }

  .sf-nav {
    display: none;
    flex: 0 0 100%;
    width: 100%;
    overflow: visible;
    border-top: 1px solid var(--sf-line);
  }

  .sf-nav[data-open="true"],
  .sf-header[data-open="true"] .sf-nav {
    display: block;
    animation: sf-navdrop .22s var(--sf-ease);
  }

  .sf-nav__list {
    flex-direction: column;
    gap: 0;
    padding-block: 4px 14px;
  }

  .sf-nav__link {
    padding: 12px 2px;
    font-size: 16px;
    border-bottom: 1px solid rgba(143, 169, 184, .14);
  }

  .sf-nav__link[aria-current="page"] {
    background: linear-gradient(90deg, rgba(255, 107, 44, .16), transparent 62%);
  }

  .sf-nav__link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 13px;
    bottom: 13px;
    width: 3px;
    height: auto;
    transform: skewY(-16deg);
  }

  .sf-grid--2,
  .sf-grid--3,
  .sf-grid--split,
  .sf-grid--split-rev {
    grid-template-columns: minmax(0, 1fr);
  }

  .sf-footer__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 15. 响应式：小屏 ---------- */
@media (max-width: 640px) {
  .sf-masthead {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding-block: 10px;
  }

  .sf-masthead__slogan {
    display: none;
  }

  .sf-masthead__utility {
    gap: 6px;
  }

  .sf-util {
    padding: 6px 10px;
    font-size: 12px;
    letter-spacing: .04em;
  }

  .sf-brand { gap: 9px; }

  .sf-footer__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .sf-footer__contact {
    grid-column: auto;
  }

  .sf-footer__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .sf-footer__bottomrow {
    justify-content: flex-start;
  }

  .sf-contact__row {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .sf-btn {
    padding: 11px 16px;
    font-size: 14px;
  }
}

@media (max-width: 420px) {
  .sf-brand__tagline { display: none; }
  .sf-masthead__utility .sf-util:first-child { display: none; }
}

/* ---------- 16. 动效偏好 ---------- */
@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;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .sf-btn:hover,
  .sf-footer__link:hover,
  .sf-footer__link:focus-visible {
    transform: none;
  }
}