/* ============================================================
   组件层：导航 / Hero / 区块 / 卡片 / 跑马灯 / 表单 / 页脚
   ============================================================ */

/* ---------- 预加载动画 ---------- */
#preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--color-bg-deep);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px;
  transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}
#preloader.done { opacity: 0; visibility: hidden; }
#preloader img {
  width: 170px; height: auto; object-fit: contain;
  animation: logo-pulse 1.6s var(--ease-out) infinite;
  filter: drop-shadow(0 0 34px rgba(46, 160, 255, 0.5));
}
@keyframes logo-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
#preloader .bar {
  width: 160px; height: 2px; background: var(--color-border); border-radius: 2px; overflow: hidden;
}
#preloader .bar i {
  display: block; height: 100%; width: 0; background: var(--color-gradient);
  transition: width 0.25s ease-out;
}
#preloader .pct { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--color-muted); letter-spacing: 0.2em; }

/* ---------- 自定义光标 ---------- */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 150;
  border-radius: 50%; transform: translate(-50%, -50%);
}
.cursor-dot { width: 6px; height: 6px; background: var(--color-accent); }
.cursor-ring {
  width: 34px; height: 34px; border: 1px solid rgba(46, 160, 255, 0.5);
  transition: width 0.2s, height 0.2s, border-color 0.2s;
  mix-blend-mode: screen;
}
.cursor-ring.hovering { width: 56px; height: 56px; border-color: rgba(70, 224, 122, 0.8); }
@media (hover: none), (max-width: 768px) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- 导航 ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s, box-shadow 0.3s;
  border-bottom: 1px solid transparent;
}
.site-nav.scrolled {
  background: rgba(5, 11, 20, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-1);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 92px;
  transition: height 0.4s var(--ease-out);
}
.site-nav.scrolled .nav-inner { height: 76px; }

/* 品牌区：LOGO 作为视觉锚点，尺寸放大 + 旋转光环 + 呼吸光晕 */
.brand { display: flex; align-items: center; gap: 18px; }

.brand-mark {
  position: relative;
  width: 74px; height: 74px; flex-shrink: 0;
  display: grid; place-items: center;
  transition: width 0.4s var(--ease-out), height 0.4s var(--ease-out);
}
.site-nav.scrolled .brand-mark { width: 62px; height: 62px; }

/* 旋转的蓝绿渐变光环：套在图形标外侧，与 LOGO 留出间隙 */
.brand-mark::before {
  content: ""; position: absolute; inset: -5px; border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(46, 160, 255, 0) 0deg,
    rgba(46, 160, 255, 0.9) 60deg,
    rgba(70, 224, 122, 0.9) 150deg,
    rgba(70, 224, 122, 0) 220deg,
    rgba(46, 160, 255, 0) 360deg);
  -webkit-mask: radial-gradient(circle, transparent 84%, #000 87%);
  mask: radial-gradient(circle, transparent 84%, #000 87%);
  animation: ring-spin 9s linear infinite;
  opacity: 0.85;
}
/* 呼吸光晕 */
.brand-mark::after {
  content: ""; position: absolute; inset: 6%; border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 160, 255, 0.42), rgba(70, 224, 122, 0.16) 55%, transparent 72%);
  filter: blur(6px);
  animation: halo-breathe 4.2s ease-in-out infinite;
  z-index: 0;
}
.brand-mark img {
  position: relative; z-index: 1;
  width: 100%; height: 100%; object-fit: contain;
  filter: drop-shadow(0 2px 14px rgba(46, 160, 255, 0.35));
  transition: transform 0.5s var(--ease-out), filter 0.4s;
  animation: brand-in 0.9s var(--ease-out) both;
}
/* 入场：由小放大、轻微旋转落地 */
@keyframes brand-in {
  from { opacity: 0; transform: scale(0.72) rotate(-8deg); }
  to { opacity: 1; transform: scale(1) rotate(0); }
}
@keyframes ring-spin { to { transform: rotate(360deg); } }
@keyframes halo-breathe {
  0%, 100% { opacity: 0.5; transform: scale(0.94); }
  50% { opacity: 0.95; transform: scale(1.04); }
}

/* 悬停：光环加速、LOGO 微放大、字标下划线扫过 */
.brand:hover .brand-mark::before { animation-duration: 2.2s; }
.brand:hover .brand-mark img { transform: scale(1.06); filter: drop-shadow(0 0 22px rgba(70, 224, 122, 0.55)); }

.brand-text { display: flex; flex-direction: column; gap: 2px; line-height: 1.15; position: relative; }
.brand-text strong {
  font-size: 1.45rem; font-weight: 900; letter-spacing: 0.08em;
  transition: color var(--dur-fast);
}
.brand-text span {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--color-muted); letter-spacing: 0.34em;
}
/* 字标底部的渐变扫光 */
.brand-text::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; border-radius: 2px;
  background: var(--color-gradient);
  transition: width 0.45s var(--ease-out);
}
.brand:hover .brand-text::after { width: 100%; }
.brand:hover .brand-text strong { color: #fff; }

.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links > li { position: relative; }
.nav-links a, .nav-links .nav-drop-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 18px; min-height: 44px;
  font-size: var(--fs-sm); font-weight: 500; color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
}
.nav-links a:hover, .nav-links .nav-drop-btn:hover { color: var(--color-accent); background: rgba(46, 160, 255, 0.08); }
.nav-drop-btn { background: none; border: none; color: var(--color-text); }
.nav-drop-btn svg { transition: transform var(--dur-fast); }
.nav-item-dropdown:hover .nav-drop-btn svg,
.nav-item-dropdown.open .nav-drop-btn svg { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: calc(100% + 10px); left: 50%;
  translate: -50% 0;
  min-width: 220px; padding: 10px;
  background: rgba(10, 18, 32, 0.96);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}
.nav-item-dropdown:hover .dropdown,
.nav-item-dropdown.open .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 11px 14px; border-radius: var(--radius-sm);
}
.dropdown a:hover { background: rgba(46, 160, 255, 0.1); }
.dropdown .num { font-family: var(--font-mono); font-size: 10px; color: var(--color-accent); }

.nav-cta {
  padding: 10px 22px !important;
  background: var(--color-gradient); color: #04121c !important;
  font-weight: 700; border-radius: 999px !important;
  transition: transform var(--dur-fast), box-shadow var(--dur-fast);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--glow-accent); }

/* 移动端菜单 */
.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 10px; min-width: 44px; min-height: 44px;
}
.nav-burger span { width: 24px; height: 2px; background: var(--color-text); transition: transform 0.3s, opacity 0.3s; }
.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); }

@media (max-width: 920px) {
  .nav-burger { display: flex; }
  /* 移动端固定导航高度，LOGO 适度收小但仍是品牌主角 */
  .nav-inner, .site-nav.scrolled .nav-inner { height: 78px; }
  .brand-mark, .site-nav.scrolled .brand-mark { width: 58px; height: 58px; }
  .brand { gap: 12px; }
  .brand-text strong { font-size: 1.15rem; }
  .brand-text span { font-size: 9px; letter-spacing: 0.26em; }
  .nav-links {
    position: fixed; top: 78px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(5, 11, 20, 0.97); backdrop-filter: blur(20px);
    padding: 16px; border-bottom: 1px solid var(--color-border);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: all 0.35s var(--ease-out); max-height: calc(100vh - 78px); overflow-y: auto;
  }
  .nav-links.open { transform: none; opacity: 1; visibility: visible; }
  .dropdown { position: static; translate: none; opacity: 1; visibility: hidden; transform: none; display: none; }
  .nav-item-dropdown.open .dropdown { display: block; visibility: visible; }
  .nav-cta { text-align: center; justify-content: center; }
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 92px;
  overflow: hidden;
}
@media (max-width: 920px) { .hero { padding-top: 78px; } }
#particle-canvas { position: absolute; inset: 0; z-index: 0; }
.hero-content { position: relative; z-index: 2; padding: var(--space-6) 0 var(--space-8); }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px; border: 1px solid var(--color-border-strong);
  border-radius: 999px; font-size: var(--fs-sm); color: var(--color-muted);
  background: rgba(10, 18, 32, 0.6);
  margin-bottom: var(--space-4);
}
.hero-badge i {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-accent-2);
  box-shadow: 0 0 10px var(--color-accent-2);
  animation: blink 1.8s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.hero h1 .grad {
  background: var(--color-gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-sub {
  max-width: 34em; color: var(--color-muted);
  font-size: var(--fs-md); line-height: 1.7;
  margin-bottom: var(--space-5);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-6); }

/* 入场序列（错峰） */
.intro-seq { opacity: 0; transform: translateY(26px); animation: intro-in 0.8s var(--ease-out) forwards; }
.intro-seq:nth-of-type(1) { animation-delay: 0.15s; }
.intro-seq:nth-of-type(2) { animation-delay: 0.25s; }
.intro-seq:nth-of-type(3) { animation-delay: 0.35s; }
.intro-seq:nth-of-type(4) { animation-delay: 0.45s; }
.intro-seq:nth-of-type(5) { animation-delay: 0.55s; }
@keyframes intro-in { to { opacity: 1; transform: none; } }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 48px; padding: 12px 30px;
  border-radius: 999px; border: 1px solid transparent;
  font-size: var(--fs-base); font-weight: 700;
  transition: transform var(--dur-fast), box-shadow var(--dur-fast), background var(--dur-fast), border-color var(--dur-fast);
}
.btn-primary { background: var(--color-gradient); color: #04121c; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--glow-accent); }
.btn-ghost { border-color: var(--color-border-strong); color: var(--color-text); background: rgba(10,18,32,.4); }
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }
.btn .arrow { transition: transform var(--dur-fast); }
.btn:hover .arrow { transform: translateX(4px); }

/* 数据统计条：数字作为视觉主角，超大字号 + 跳跃计数 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, max-content));
  gap: clamp(20px, 3.2vw, 46px);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-5);
  max-width: 940px;
}
.stat {
  position: relative;
  display: flex; flex-direction: column; gap: 8px;
}
/* 竖线分隔：拉开四个数字的节奏 */
.stat + .stat {
  border-left: 1px solid var(--color-border);
  padding-left: clamp(20px, 3vw, 42px);
}
.stat b {
  position: relative;
  display: flex; align-items: flex-start;
  font-family: var(--font-mono);
  font-size: clamp(3rem, 6.2vw, 5.25rem);   /* 比原 2.5rem 放大一倍以上 */
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
  color: #eaf2ff;               /* 兜底色：万一层级渲染异常也不会变成空白 */
}
/* 数字本体分两层：
   .count-wrap —— 只负责位移动画（无背景无文字色）
   .count      —— 只负责渐变文字，保持静态，避免合成层把背景裁掉导致全透明 */
.stat b .count-wrap {
  display: inline-block;
  transform-origin: 50% 85%;
}
.stat b .count {
  display: inline-block;
  color: #dcebff;                      /* 不支持渐变裁剪时的可见兜底 */
  text-shadow: 0 0 34px rgba(46, 160, 255, 0.3);
}
/* 仅在浏览器支持 background-clip:text 时替换成渐变字 */
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .stat b .count {
    background: var(--color-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}
/* 「+」符号：小一号的上标，强调数字本身 */
.stat b i {
  font-style: normal;
  font-size: 0.38em;
  line-height: 1;
  margin-top: 0.16em;
  margin-left: 0.06em;
  letter-spacing: 0;
  color: #8fd4ff;                     /* 兜底 */
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .stat b i {
    background: var(--color-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}
.stat > span {
  font-size: var(--fs-xs);
  color: var(--color-muted);
  letter-spacing: 0.22em;
  white-space: nowrap;
}
/* 落地时的底部光条扩散 */
.stat b::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--color-gradient);
  border-radius: 2px; opacity: 0;
}
.stat.landed b::after {
  animation: stat-underline 0.9s var(--ease-out) forwards;
}
@keyframes stat-underline {
  0% { width: 0; opacity: 0; }
  40% { opacity: 1; }
  100% { width: 46px; opacity: 0.85; }
}

/* 窄屏：2×2 排布，避免数字被压缩 */
@media (max-width: 640px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 26px 18px; }
  .stat + .stat { border-left: none; padding-left: 0; }
  .stat:nth-child(even) { border-left: 1px solid var(--color-border); padding-left: 18px; }
}

.hero-scroll-hint {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.3em;
  color: var(--color-muted); display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.hero-scroll-hint i {
  width: 1px; height: 36px; background: var(--color-border-strong); position: relative; overflow: hidden;
}
.hero-scroll-hint i::after {
  content: ""; position: absolute; top: -40%; left: 0; width: 100%; height: 40%;
  background: var(--color-accent); animation: hint-drop 1.6s ease-in-out infinite;
}
@keyframes hint-drop { to { top: 110%; } }

/* ---------- 区块标题 ---------- */
.sec-head { margin-bottom: var(--space-6); max-width: 720px; }
.sec-tag {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: var(--fs-xs);
  color: var(--color-accent); letter-spacing: 0.25em;
  margin-bottom: var(--space-3);
}
.sec-tag::before { content: ""; width: 32px; height: 1px; background: var(--color-gradient); }
.sec-head h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); line-height: 1.15; }
.sec-head p { color: var(--color-muted); margin-top: var(--space-3); max-width: 38em; }

/* ---------- 公司介绍 ---------- */
.about-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); align-items: start;
}
.about-lead { font-size: var(--fs-lg); line-height: 1.85; font-weight: 500; }
.about-lead em {
  font-style: normal; background: var(--color-gradient);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.about-desc { color: var(--color-muted); margin-top: var(--space-4); }
/* ---------- 痛点 → 解法 诊断台（全宽对峙式） ---------- */
.pain-map { margin-top: var(--space-6); }
.pm-head { margin-bottom: var(--space-4); }
.pm-head h3 { font-size: var(--fs-md); }

.pm-row {
  display: grid;
  grid-template-columns: 1fr 92px 1fr;
  align-items: stretch;
  margin-bottom: 14px;
}

/* 痛点卡：琥珀警示系 */
.pm-pain, .pm-fix {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  overflow: hidden;
}
.pm-pain {
  border: 1px solid rgba(255, 178, 122, 0.26);
  background:
    linear-gradient(150deg, rgba(255, 178, 122, 0.08), rgba(255, 178, 122, 0.02)),
    rgba(10, 18, 32, 0.6);
  transition: opacity 0.5s ease, filter 0.5s ease, transform 0.5s var(--ease-out), border-color 0.4s;
}
.pm-no {
  position: absolute; top: 16px; right: 20px;
  font-family: var(--font-mono); font-size: 30px; font-weight: 700;
  color: rgba(255, 178, 122, 0.2); letter-spacing: 0.04em;
  line-height: 1;
}
.pm-tag {
  display: inline-block;
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.22em;
  padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
}
.pm-pain .pm-tag {
  color: #ffb27a;
  border: 1px solid rgba(255, 178, 122, 0.4);
  background: rgba(255, 178, 122, 0.08);
}
.pm-pain b { display: block; font-size: 1.14rem; color: #ffd9bd; letter-spacing: 0.02em; }
.pm-pain p { margin-top: 6px; font-size: var(--fs-sm); color: var(--color-muted); line-height: 1.7; max-width: 32em; }

/* 解法卡：品牌蓝绿系 + 渐变描边 */
.pm-fix {
  border: 1px solid var(--color-border);
  background:
    linear-gradient(150deg, rgba(46, 160, 255, 0.08), rgba(70, 224, 122, 0.05)),
    rgba(10, 18, 32, 0.6);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, box-shadow 0.5s;
}
.pm-fix::before {
  content: ""; position: absolute; inset: 0;
  border-radius: inherit; padding: 1px;
  background: linear-gradient(140deg, rgba(46, 160, 255, 0.55), transparent 42%, transparent 58%, rgba(70, 224, 122, 0.45));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
}
.pm-fix .pm-tag {
  color: var(--color-accent-2);
  border: 1px solid rgba(70, 224, 122, 0.4);
  background: rgba(70, 224, 122, 0.08);
}
.pm-fix b { display: block; font-size: 1.14rem; color: var(--color-text); letter-spacing: 0.02em; }
.pm-fix p { margin-top: 6px; font-size: var(--fs-sm); color: var(--color-muted); line-height: 1.7; max-width: 32em; }

/* 解法卡的绿色对勾：hover 时弹出 */
.pm-ok {
  position: absolute; right: 18px; top: 18px;
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(70, 224, 122, 0.14);
  border: 1px solid rgba(70, 224, 122, 0.6);
  color: var(--color-accent-2); font-size: 14px; font-style: normal;
  transform: scale(0.4); opacity: 0;
  transition: transform 0.45s var(--ease-out), opacity 0.45s ease;
}

/* 中间能量光束 + 箭头 */
.pm-link { position: relative; display: grid; place-items: center; }
.pm-link .beam {
  position: absolute; left: 0; right: 0; top: 50%;
  height: 2px; margin-top: -1px;
  background: repeating-linear-gradient(90deg,
    rgba(46, 160, 255, 0.6) 0 6px,
    rgba(70, 224, 122, 0.6) 6px 10px,
    transparent 10px 16px);
  background-size: 16px 2px;
  opacity: 0.4;
  transition: opacity 0.4s;
  -webkit-mask: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  mask: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
}
.pm-link .pt {
  position: relative; z-index: 1;
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(5, 11, 20, 0.92);
  border: 1px solid var(--color-border-strong);
  color: var(--color-accent); font-size: 14px; font-weight: 400;
  transition: color 0.4s, border-color 0.4s, box-shadow 0.4s, transform 0.4s var(--ease-out);
}

/* 行 hover：痛点隐去、解法点亮 —— 「问题被解决」的叙事感 */
.pm-row:hover .pm-link .beam { opacity: 1; animation: pm-flow 0.55s linear infinite; }
.pm-row:hover .pm-link .pt {
  color: var(--color-accent-2);
  border-color: rgba(70, 224, 122, 0.8);
  box-shadow: 0 0 16px rgba(70, 224, 122, 0.5);
  transform: scale(1.12);
}
.pm-row:hover .pm-fix {
  transform: translateY(-5px);
  border-color: rgba(46, 160, 255, 0.5);
  box-shadow: var(--shadow-3), 0 0 34px rgba(46, 160, 255, 0.12);
}
.pm-row:hover .pm-ok { transform: scale(1); opacity: 1; }
@keyframes pm-flow { to { background-position: 16px 0; } }

/* 入场：痛点从左滑入、解法从右滑入、光束后亮 */
html.js .pm-row .pm-pain {
  opacity: 0; transform: translateX(-42px);
  transition: opacity 0.7s ease, transform 0.7s var(--ease-out);
}
html.js .pm-row .pm-fix {
  opacity: 0; transform: translateX(42px);
  transition: opacity 0.7s ease 0.15s, transform 0.7s var(--ease-out) 0.15s;
}
html.js .pm-row .pm-link { opacity: 0; transition: opacity 0.5s ease 0.34s; }
html.js .pm-row.in .pm-pain { opacity: 1; transform: none; }
html.js .pm-row.in .pm-fix { opacity: 1; transform: none; }
html.js .pm-row.in .pm-link { opacity: 1; }
/* hover 隐去痛点 / 点亮解法需盖过入场规则 */
html.js .pm-row.in:hover .pm-pain { opacity: 0.45; filter: saturate(0.6); }
html.js .pm-row.in:hover .pm-fix {
  transform: translateY(-5px);
  border-color: rgba(46, 160, 255, 0.5);
  box-shadow: var(--shadow-3), 0 0 34px rgba(46, 160, 255, 0.12);
}

@media (max-width: 760px) {
  .pm-row { grid-template-columns: 1fr; margin-bottom: 16px; }
  .pm-link { height: 44px; transform: rotate(90deg); margin: 2px 0; }
  .pm-link .beam { left: 16px; right: 16px; }
}

/* 痛点解决对照卡 */
.about-card {
  position: relative; padding: var(--space-5);
  background: linear-gradient(160deg, rgba(14, 24, 40, 0.9), rgba(10, 18, 32, 0.6));
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}
.about-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: linear-gradient(160deg, rgba(46,160,255,.5), transparent 40%, transparent 60%, rgba(70,224,122,.4));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.about-card h3 { font-size: var(--fs-lg); margin-bottom: var(--space-2); }
.about-card .mono-line {
  font-family: var(--font-mono); font-size: 11px; color: var(--color-muted);
  letter-spacing: 0.15em; margin-bottom: var(--space-4);
}
.about-card ul { list-style: none; display: grid; gap: 10px; }
.about-card li { display: flex; gap: 12px; font-size: var(--fs-sm); color: var(--color-muted); }
.about-card li::before { content: "◆"; color: var(--color-accent); font-size: 10px; margin-top: 5px; }

/* 服务流程 */
.flow-strip {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
  margin-top: var(--space-6); counter-reset: flow;
}
.flow-step {
  position: relative; padding: 22px 18px;
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: rgba(10, 18, 32, 0.5);
  transition: transform var(--dur-fast), border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.flow-step:hover { transform: translateY(-6px); border-color: rgba(46,160,255,.5); box-shadow: var(--shadow-2); }
.flow-step::before {
  counter-increment: flow; content: "0" counter(flow);
  font-family: var(--font-mono); font-size: 12px; color: var(--color-accent);
  display: block; margin-bottom: 8px;
}
.flow-step h4 { font-size: var(--fs-base); }
.flow-step p { font-size: var(--fs-xs); color: var(--color-muted); margin-top: 6px; }
@media (max-width: 920px) { .flow-strip { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 服务 ---------- */
.service-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3);
}
.service-card {
  position: relative; overflow: hidden;
  padding: var(--space-5); min-height: 250px;
  display: flex; flex-direction: column; justify-content: flex-end; gap: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base), box-shadow var(--dur-base);
}
/* 鼠标跟随光斑 */
.service-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%), rgba(46, 160, 255, 0.14), transparent 65%);
  opacity: 0; transition: opacity var(--dur-base);
  pointer-events: none;
}
.service-card:hover::before { opacity: 1; }
.service-card:hover { transform: translateY(-8px); border-color: rgba(46, 160, 255, 0.45); box-shadow: var(--shadow-3); }
.service-card .num {
  font-family: var(--font-mono); font-size: 12px; color: var(--color-accent);
  position: absolute; top: 22px; left: 24px; letter-spacing: 0.2em;
}
.service-card h3 { font-size: var(--fs-lg); }
.service-card .en {
  font-family: var(--font-display); font-size: 10px; color: var(--color-muted);
  letter-spacing: 0.14em; text-transform: uppercase;
}
.service-card p { font-size: var(--fs-sm); color: var(--color-muted); line-height: 1.7; }
.service-card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.service-card .tags i {
  font-style: normal; font-size: 11px; padding: 4px 10px;
  border: 1px solid var(--color-border); border-radius: 999px; color: var(--color-muted);
}
/* 整卡可点：把链接铺满服务卡，避免小按钮难点 */
.service-card .card-link { position: absolute; inset: 0; z-index: 3; border-radius: inherit; }
.service-card .card-link:focus-visible { outline-offset: -3px; }
.service-card .card-more {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em;
  color: var(--color-accent); display: inline-flex; align-items: center; gap: 6px;
  opacity: 0; transform: translateY(4px);
  transition: opacity var(--dur-base), transform var(--dur-base);
}
.service-card:hover .card-more { opacity: 1; transform: none; }

.service-card.feature { background: linear-gradient(150deg, rgba(46,160,255,.12), rgba(70,224,122,.08)), var(--color-surface); }
.service-card.wide { grid-column: span 2; }

/* CMS 系统能力 chips */
.cms-strip { margin-top: var(--space-6); }
.cms-strip-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: var(--space-3); flex-wrap: wrap; }
.cms-strip-head h3 { font-size: var(--fs-md); }
.cms-strip-head span { font-family: var(--font-mono); font-size: 11px; color: var(--color-muted); letter-spacing: 0.1em; }
.cms-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.cms-chips i {
  font-style: normal; font-size: var(--fs-sm); color: var(--color-muted);
  padding: 9px 16px; border: 1px solid var(--color-border); border-radius: 999px;
  background: rgba(10,18,32,.5);
  transition: all var(--dur-fast);
}
.cms-chips i:hover { color: var(--color-text); border-color: var(--color-accent); transform: translateY(-2px); }

/* 技术架构 */
.tech-strip {
  margin-top: var(--space-5);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.tech-cell {
  padding: 20px; border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: rgba(10,18,32,.5);
}
.tech-cell b { font-family: var(--font-mono); font-size: var(--fs-md); color: var(--color-text); display: block; }
.tech-cell span { font-size: var(--fs-xs); color: var(--color-muted); }
@media (max-width: 920px) {
  .about-grid, .service-grid, .tech-strip { grid-template-columns: 1fr; }
  .service-card.wide { grid-column: span 1; }
}
@media (min-width: 921px) and (max-width: 1100px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 客户 LOGO 条带 ---------- */
.marquee-wrap {
  overflow: hidden; border-block: 1px solid var(--color-border);
  padding-block: var(--space-4); margin-top: var(--space-6);
  -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee {
  display: flex; align-items: center; gap: 54px; width: max-content;
  animation: marquee 32s linear infinite;
}
.marquee-wrap:hover .marquee { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 每个客户 = LOGO 图形 + 名称 */
.logo-chip {
  display: inline-flex; align-items: center; gap: 12px;
  white-space: nowrap;
  opacity: 0.62;
  transition: opacity var(--dur-fast), transform var(--dur-fast);
}
.logo-chip:hover { opacity: 1; transform: translateY(-2px); }
.logo-chip i {
  display: grid; place-items: center;
  width: 34px; height: 34px; flex-shrink: 0;
  color: var(--color-accent-2);
}
.logo-chip i svg { width: 32px; height: 32px; display: block; }
.logo-chip i img { width: 32px; height: 32px; object-fit: contain; }
.logo-chip em {
  font-style: normal; font-size: var(--fs-base); font-weight: 500;
  color: rgba(234, 242, 255, 0.82); letter-spacing: 0.06em;
}
.marquee-wrap:hover .logo-chip { opacity: 1; }

/* ---------- 案例 LOGO 墙 ---------- */
.logo-lockup {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  padding: 0 24px; text-align: center;
  transition: transform var(--dur-slow) var(--ease-out);
}
.case-card:hover .logo-lockup { transform: translateY(-4px) scale(1.03); }

.logo-mark {
  display: grid; place-items: center;
  width: 64px; height: 64px;
  color: rgba(255, 255, 255, 0.94);
  filter: drop-shadow(0 6px 22px rgba(0, 0, 0, 0.35));
}
.logo-mark svg { width: 100%; height: 100%; display: block; }
.logo-mark img {
  width: 64px; height: 64px; object-fit: contain;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.3));
}
.logo-type { display: flex; flex-direction: column; gap: 6px; align-items: center; }
.logo-type strong {
  font-size: 1.05rem; font-weight: 700; color: #fff;
  letter-spacing: 0.16em; line-height: 1.1;
}
.logo-type .logo-name {
  font-family: var(--font-body);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.2;
}
/* 字标字体变体：让每家客户的 LOGO 有自己的性格 */
.wt-geo { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.12em; }
.wt-mono { font-family: var(--font-mono); font-weight: 700; letter-spacing: 0.1em; }
.wt-serif { font-family: "Playfair Display", serif; font-weight: 600; letter-spacing: 0.14em; }
.wt-cn { font-family: var(--font-body); font-weight: 700; letter-spacing: 0.2em; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.case-card {
  position: relative; overflow: hidden;
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  background: var(--color-surface);
  aspect-ratio: 4 / 3;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base), border-color var(--dur-base);
}
.case-card:hover { transform: translateY(-8px) scale(1.01); box-shadow: var(--shadow-3); border-color: rgba(46,160,255,.4); }
a.case-card { color: inherit; text-decoration: none; display: block; }
a.case-card:focus-visible { outline: 2px solid rgba(46,160,255,.6); outline-offset: 3px; }
.case-enter {
  position: absolute; right: 14px; top: 14px; z-index: 3;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em;
  color: var(--color-text); padding: 8px 14px; border-radius: 999px;
  background: rgba(5, 11, 20, 0.88); border: 1px solid rgba(46, 160, 255, 0.45);
  opacity: 0; transform: translateY(-6px); pointer-events: none;
  transition: opacity var(--dur-base), transform var(--dur-base) var(--ease-out), border-color var(--dur-base);
}
.case-card:hover .case-enter { opacity: 1; transform: none; border-color: rgba(70, 224, 122, 0.6); }
.case-visual {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, var(--cv-a, #123), var(--cv-b, #0a1220));
  transition: transform 0.6s var(--ease-out);
}
.case-card:hover .case-visual { transform: scale(1.06); }
/* LOGO 背后的柔光，让标识从渐变底上"亮"起来 */
.case-visual::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(52% 46% at 50% 42%, rgba(255, 255, 255, 0.16), transparent 70%);
}
.case-visual .logo-lockup { position: relative; z-index: 1; padding-bottom: 46px; }
.case-info {
  position: absolute; inset: auto 0 0 0; padding: 18px 20px 20px;
  background: linear-gradient(transparent, rgba(3, 6, 12, 0.92) 40%);
  display: flex; flex-direction: column; gap: 3px;
}
.case-info .cat {
  font-family: var(--font-mono); font-size: 10px; color: var(--color-accent-2); letter-spacing: 0.2em;
}
.case-info p { font-size: var(--fs-xs); color: var(--color-muted); }
/* 案例卡整卡可点：右上角浮现的箭头 */
a.case-card { display: block; }
.case-card .case-go {
  position: absolute; right: 16px; top: 16px; z-index: 2;
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(5, 11, 20, 0.5); border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff; font-size: 13px;
  opacity: 0; transform: translate(-6px, 6px);
  transition: all var(--dur-base) var(--ease-out);
}
a.case-card:hover .case-go { opacity: 1; transform: none; }
@media (max-width: 920px) { .case-grid { grid-template-columns: 1fr; } }
@media (min-width: 921px) and (max-width: 1100px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.news-card {
  display: flex; flex-direction: column; gap: 12px;
  padding: var(--space-5);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base);
}
.news-card:hover { transform: translateY(-6px); border-color: rgba(46,160,255,.45); }
.news-card .meta {
  display: flex; gap: 14px; font-family: var(--font-mono); font-size: 11px;
  color: var(--color-muted); letter-spacing: 0.08em;
}
.news-card .meta .cat { color: var(--color-accent-2); }
.news-card h3 { font-size: var(--fs-md); line-height: 1.5; }
.news-card p { font-size: var(--fs-sm); color: var(--color-muted); flex: 1; }
.news-card .more {
  font-size: var(--fs-sm); color: var(--color-accent);
  display: inline-flex; align-items: center; gap: 8px;
}
.news-card .more .arrow { transition: transform var(--dur-fast); }
.news-card:hover .more .arrow { transform: translateX(4px); }
@media (max-width: 920px) { .news-grid { grid-template-columns: 1fr; } }

/* ---------- 联系我们 ---------- */
.contact-wrap {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--space-6);
  align-items: start;
}
.contact-info { display: grid; gap: var(--space-3); }
.contact-line {
  display: flex; gap: 16px; padding: 20px;
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: rgba(10,18,32,.5);
}
.contact-line .k {
  font-family: var(--font-mono); font-size: 10px; color: var(--color-accent);
  letter-spacing: 0.25em; padding-top: 4px; min-width: 72px;
}
.contact-line b { display: block; font-size: var(--fs-md); font-weight: 700; }
.contact-line span { font-size: var(--fs-sm); color: var(--color-muted); }

.contact-form {
  padding: var(--space-5);
  background: linear-gradient(160deg, rgba(14,24,40,.9), rgba(10,18,32,.6));
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
  display: grid; gap: var(--space-3);
}
.field { display: grid; gap: 8px; }
.field label { font-size: var(--fs-sm); color: var(--color-muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px; min-height: 48px;
  background: rgba(5, 11, 20, 0.7); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  font: inherit; font-size: var(--fs-sm);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(46, 160, 255, 0.18);
}
.field input::placeholder, .field textarea::placeholder { color: rgba(143, 163, 191, 0.5); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.form-msg {
  font-size: var(--fs-sm); min-height: 24px; color: var(--color-accent-2);
}
@media (max-width: 920px) {
  .contact-wrap { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6) var(--space-4);
  background: var(--color-bg-deep);
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: var(--space-5);
  margin-bottom: var(--space-5);
}
.footer-brand img {
  width: 128px; height: auto; margin-bottom: 16px;
  filter: drop-shadow(0 0 22px rgba(46, 160, 255, 0.35));
  transition: transform var(--dur-base) var(--ease-out);
}
.footer-brand img:hover { transform: scale(1.04); }
.footer-brand p { font-size: var(--fs-sm); color: var(--color-muted); max-width: 26em; }
.footer-col h4 { font-size: var(--fs-sm); margin-bottom: 14px; letter-spacing: 0.1em; }
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a { font-size: var(--fs-sm); color: var(--color-muted); transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--color-border); padding-top: var(--space-4);
  font-family: var(--font-mono); font-size: 11px; color: var(--color-muted);
}
@media (max-width: 920px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }