/* ==========================================================
   脉序智能科技 · OpsAgent 官网样式
   深色金融科技风格 · 金色 + 青色点缀
   ========================================================== */

:root {
  --bg: #07090f;
  --bg-alt: #0b0e17;
  --panel: #10141f;
  --panel-2: #141a29;
  --line: rgba(200, 170, 110, 0.16);
  --line-strong: rgba(200, 170, 110, 0.35);
  --gold: #d8b56c;
  --gold-bright: #f0d190;
  --cyan: #55d6c2;
  --text: #e8e6df;
  --text-dim: #9aa0ae;
  --text-faint: #6b7280;
  --danger: #e07a6a;
  --radius: 14px;
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-en: 'Oswald', 'Noto Sans SC', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-cn);
  font-weight: 400;
  line-height: 1.75;
  overflow-x: hidden;
}

::selection { background: rgba(216, 181, 108, .35); }

img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 渐变文字与通用 ---------- */
.gradient-text {
  background: linear-gradient(100deg, var(--gold-bright) 10%, var(--gold) 45%, var(--cyan) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 滚动进入动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .8s cubic-bezier(.22,.61,.36,1), transform .8s cubic-bezier(.22,.61,.36,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ==========================================================
   导航
   ========================================================== */
#site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 18px 0;
  transition: background .35s, padding .35s, box-shadow .35s;
}
#site-header.scrolled {
  background: rgba(7, 9, 15, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 10px 0;
  box-shadow: 0 1px 0 var(--line);
}
.nav-inner {
  width: min(1180px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  font-size: 1.35rem; font-weight: 900; letter-spacing: .35em;
  color: var(--gold-bright); padding-left: .35em;
}
.brand-divider { width: 1px; height: 22px; background: var(--line-strong); }
.brand-name { font-family: var(--font-en); font-size: 1.05rem; letter-spacing: .18em; color: var(--text); }

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  font-size: .92rem; color: var(--text-dim); letter-spacing: .08em;
  transition: color .25s;
  position: relative;
}
.nav-links a:not(.nav-cta)::after {
  content: ''; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--gold); transition: width .3s;
}
.nav-links a:hover { color: var(--gold-bright); }
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 7px 20px; color: var(--gold-bright) !important;
  transition: background .3s, color .3s !important;
}
.nav-cta:hover { background: var(--gold); color: #17120a !important; }

#nav-toggle {
  display: none; background: none; border: 1px solid var(--line-strong);
  color: var(--gold); font-size: 1.1rem; padding: 8px 12px; border-radius: 8px; cursor: pointer;
}

/* ==========================================================
   Hero
   ========================================================== */
#hero-section {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 130px 0 90px;
  overflow: hidden;
}
#particle-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-glow {
  position: absolute; left: 50%; top: 18%;
  width: 900px; height: 560px; transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(216,181,108,.14), transparent 70%),
    radial-gradient(closest-side at 70% 80%, rgba(85,214,194,.10), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}
.hero-inner { position: relative; width: min(980px, 92%); z-index: 2; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-en);
  font-size: .82rem; letter-spacing: .3em; color: var(--gold);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 22px; margin-bottom: 34px;
  background: rgba(216,181,108,.05);
}
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(85,214,194,.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(85,214,194,.55); }
  70% { box-shadow: 0 0 0 12px rgba(85,214,194,0); }
  100% { box-shadow: 0 0 0 0 rgba(85,214,194,0); }
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 900; line-height: 1.22; letter-spacing: .04em;
  margin-bottom: 26px;
}
.hero-equation {
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  font-weight: 700; color: var(--text); margin-bottom: 18px;
  min-height: 1.8em;
}
.hero-equation .eq { color: var(--text-faint); margin: 0 .35em; }
.typing-target { color: var(--gold-bright); }
.typing-cursor { color: var(--gold); animation: blink 1s steps(2) infinite; font-weight: 300; }
@keyframes blink { 50% { opacity: 0; } }

.hero-slogan { font-size: clamp(1.05rem, 2.2vw, 1.35rem); color: var(--text); margin-bottom: 18px; letter-spacing: .05em; }
.hero-slogan mark {
  background: none; color: var(--cyan); font-weight: 700;
  border-bottom: 2px solid rgba(85,214,194,.5); padding-bottom: 2px;
}
.hero-desc {
  max-width: 720px; margin: 0 auto 40px;
  color: var(--text-dim); font-size: 1rem;
}
.hero-desc b { color: var(--text); font-weight: 500; }

.hero-actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-bottom: 64px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 34px; border-radius: 999px;
  font-size: .98rem; font-weight: 500; letter-spacing: .08em;
  transition: transform .25s, box-shadow .25s, background .25s, color .25s;
}
.btn-primary {
  background: linear-gradient(100deg, var(--gold-bright), var(--gold));
  color: #17120a;
  box-shadow: 0 8px 30px rgba(216,181,108,.25);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(216,181,108,.4); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); }
.btn-ghost:hover { background: rgba(216,181,108,.08); transform: translateY(-3px); }

.hero-stats {
  display: flex; justify-content: center; gap: clamp(28px, 6vw, 80px); flex-wrap: wrap;
}
.hero-stats li { display: flex; flex-direction: column; align-items: center; gap: 4px; position: relative; }
.hero-stats li:not(:last-child)::after {
  content: ''; position: absolute; right: calc(-1 * clamp(14px, 3vw, 40px)); top: 15%;
  width: 1px; height: 70%; background: var(--line);
}
.stat-num {
  font-family: var(--font-en); font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600; color: var(--gold-bright); line-height: 1.1;
}
.stat-label { font-size: .88rem; color: var(--text-dim); letter-spacing: .3em; padding-left: .3em; }

.scroll-hint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  color: var(--gold); font-size: 1.1rem; z-index: 2;
  animation: bob 2s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 10px); } }

/* ==========================================================
   通用 Section
   ========================================================== */
.section { padding: 110px 0; position: relative; }
.section-alt {
  background:
    radial-gradient(1000px 400px at 85% 0%, rgba(216,181,108,.05), transparent 60%),
    var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-eyebrow {
  font-family: var(--font-en);
  font-size: .8rem; letter-spacing: .34em; color: var(--gold);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 900; line-height: 1.35; letter-spacing: .03em;
  margin-bottom: 18px;
}
.section-sub { color: var(--text-dim); max-width: 760px; margin-bottom: 56px; }
.section-sub b { color: var(--gold-bright); font-weight: 700; }
.strike-old { color: var(--text-faint); text-decoration: line-through; text-decoration-color: rgba(224,122,106,.7); text-decoration-thickness: 2px; }

/* ==========================================================
   愿景 · 范式对比
   ========================================================== */
.paradigm-grid {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 20px; align-items: stretch;
  margin-bottom: 54px;
}
.paradigm-card {
  border-radius: var(--radius);
  padding: 34px 32px;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: transform .35s, border-color .35s, box-shadow .35s;
}
.paradigm-card:hover { transform: translateY(-6px); }
.paradigm-old { border-color: rgba(255,255,255,.09); }
.paradigm-old .paradigm-tag { color: var(--text-faint); border-color: rgba(255,255,255,.14); }
.paradigm-new {
  border-color: var(--line-strong);
  background: linear-gradient(160deg, rgba(216,181,108,.08), rgba(85,214,194,.05) 70%), var(--panel);
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.paradigm-new:hover { box-shadow: 0 26px 60px rgba(216,181,108,.15); }
.paradigm-tag {
  display: inline-block; font-family: var(--font-en);
  font-size: .74rem; letter-spacing: .22em; color: var(--gold);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 4px 14px; margin-bottom: 16px;
}
.paradigm-head h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
.paradigm-card > p { color: var(--text-dim); font-size: .95rem; margin-bottom: 22px; }
.paradigm-arrow {
  display: flex; align-items: center; justify-content: center;
  font-size: 1.9rem; color: var(--gold);
  animation: nudger 2.2s ease-in-out infinite;
}
@keyframes nudger { 0%,100% { transform: translateX(0); } 50% { transform: translateX(8px); } }

.flow-line {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-size: .85rem; color: var(--text-dim);
  border-top: 1px dashed var(--line); padding-top: 18px;
}
.flow-line span {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px; padding: 4px 12px; white-space: nowrap;
}
.flow-line i { color: var(--text-faint); font-size: .75rem; }
.flow-new span { background: rgba(85,214,194,.08); border-color: rgba(85,214,194,.25); color: var(--cyan); }
.flow-new i { color: var(--gold); }

.shift-list {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.shift-item {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); padding: 26px 22px;
  transition: transform .3s, border-color .3s;
}
.shift-item:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.shift-icon { font-size: 1.4rem; color: var(--gold); margin-bottom: 14px; display: block; }
.shift-item h4 { font-size: 1rem; letter-spacing: .15em; margin-bottom: 10px; }
.shift-item p { font-size: .86rem; display: flex; flex-wrap: wrap; align-items: center; gap: 7px; }
.shift-item .old { color: var(--text-faint); }
.shift-item .new { color: var(--cyan); font-weight: 500; }
.shift-item p i { color: var(--gold); font-size: .7rem; }

/* ==========================================================
   行业困局 · 七大障碍
   ========================================================== */
.pain-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-bottom: 46px;
}
.pain-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); padding: 28px 24px;
  transition: transform .3s, border-color .3s, background .3s;
  position: relative; overflow: hidden;
}
.pain-card::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent 80%);
  opacity: 0; transition: opacity .3s;
}
.pain-card:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.pain-card:hover::before { opacity: 1; }
.pain-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.pain-no {
  font-family: var(--font-en); font-size: 1.7rem; font-weight: 600;
  color: rgba(216,181,108,.4);
}
.pain-head i { font-size: 1.25rem; color: var(--gold); }
.pain-card h3 { font-size: 1.02rem; font-weight: 700; margin-bottom: 10px; }
.pain-card h3 em { font-style: normal; color: var(--danger); margin-left: 6px; }
.pain-card p { font-size: .85rem; color: var(--text-dim); }
.pain-summary {
  background: linear-gradient(160deg, rgba(216,181,108,.12), rgba(216,181,108,.03)), var(--panel);
  border-color: var(--line-strong);
}
.pain-summary .pain-no { color: var(--gold-bright); }
.pain-summary-title { font-size: .98rem !important; color: var(--text) !important; margin-bottom: 8px; }
.pain-summary-title b { color: var(--gold-bright); }

.conclusion-banner {
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  background:
    radial-gradient(600px 200px at 10% 0%, rgba(216,181,108,.12), transparent 65%),
    var(--panel-2);
  padding: 36px 40px; text-align: center;
}
.conclusion-label {
  font-family: var(--font-en); font-size: .76rem; letter-spacing: .32em;
  color: var(--gold); margin-bottom: 14px;
}
.conclusion-text { font-size: clamp(1rem, 2vw, 1.2rem); line-height: 2; }
.conclusion-text .kw { color: var(--cyan); font-weight: 500; white-space: nowrap; }
.conclusion-text strong { color: var(--gold-bright); font-weight: 900; }

/* ==========================================================
   产品架构
   ========================================================== */
.arch-stack { display: flex; flex-direction: column; gap: 14px; margin-bottom: 70px; }
.arch-layer {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 30px;
  display: grid; grid-template-columns: 280px 1fr; gap: 24px; align-items: center;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.arch-layer:hover { transform: translateX(8px); border-color: var(--line-strong); }
.arch-tag {
  display: block; font-family: var(--font-en); font-size: .74rem;
  letter-spacing: .26em; color: var(--gold); margin-bottom: 6px;
}
.arch-layer h3 { font-size: 1.12rem; font-weight: 700; }
.arch-l1 { background: linear-gradient(120deg, rgba(240,209,144,.12), rgba(240,209,144,.02)), var(--panel); }
.arch-l2 { background: linear-gradient(120deg, rgba(85,214,194,.10), rgba(85,214,194,.02)), var(--panel); }
.arch-l3 { background: linear-gradient(120deg, rgba(216,181,108,.08), transparent), var(--panel); }
.arch-l4 { background: var(--panel); opacity: .95; }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-row li {
  font-size: .85rem; color: var(--text);
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px; padding: 6px 16px;
  transition: border-color .25s, background .25s;
}
.chip-row li:hover { border-color: var(--gold); background: rgba(216,181,108,.1); }
.chip-engine li b { color: var(--cyan); margin-right: 4px; font-weight: 600; }
.chip-sys li { color: var(--text-dim); }

.base-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.base-row li {
  background: rgba(216,181,108,.06); border: 1px solid var(--line);
  border-radius: 10px; padding: 14px 18px;
  display: flex; flex-direction: column; gap: 2px;
  transition: border-color .25s;
}
.base-row li:hover { border-color: var(--gold); }
.base-row b { font-family: var(--font-en); color: var(--gold-bright); letter-spacing: .08em; font-size: 1rem; }
.base-row span { font-size: .8rem; color: var(--text-dim); }

.pipeline-block {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel-2); padding: 40px 34px;
}
.pipeline-label {
  text-align: center; font-family: var(--font-en);
  letter-spacing: .2em; font-size: .85rem; color: var(--text-dim); margin-bottom: 34px;
}
.pipeline-label b { color: var(--gold-bright); margin: 0 2px; }
.pipeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; counter-reset: pipe; }
.pipe-step {
  position: relative; text-align: center;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--panel); padding: 24px 12px 20px;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.pipe-step.active {
  border-color: var(--gold);
  box-shadow: 0 0 26px rgba(216,181,108,.22);
  transform: translateY(-6px);
}
.pipe-step:not(:last-child)::after {
  content: '\f054'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
  position: absolute; right: -13px; top: 50%; transform: translateY(-50%);
  color: var(--gold); font-size: .7rem; z-index: 2;
}
.pipe-no { display: block; font-family: var(--font-en); font-size: .72rem; letter-spacing: .25em; color: var(--text-faint); margin-bottom: 10px; }
.pipe-step i { font-size: 1.35rem; color: var(--gold); margin-bottom: 12px; display: inline-block; }
.pipe-step.active i { color: var(--gold-bright); }
.pipe-step h4 { font-size: .95rem; margin-bottom: 6px; }
.pipe-step p { font-size: .74rem; color: var(--text-dim); line-height: 1.6; }

/* ==========================================================
   服务蓝图
   ========================================================== */
.timeline-bar {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 46px; flex-wrap: wrap;
}
.tl-node {
  font-family: var(--font-en); font-size: .8rem; letter-spacing: .2em;
  color: var(--gold-bright); border: 1px solid var(--line-strong);
  border-radius: 999px; padding: 6px 18px; background: rgba(216,181,108,.06);
  white-space: nowrap;
}
.tl-track { flex: 1; min-width: 60px; height: 2px; background: rgba(255,255,255,.08); position: relative; overflow: hidden; border-radius: 2px; }
.tl-progress {
  position: absolute; inset: 0; width: 0;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  transition: width 1.6s cubic-bezier(.22,.61,.36,1);
}
.timeline-bar.visible .tl-progress { width: 100%; }
.timeline-bar.visible .tl-track2 .tl-progress { transition-delay: 1.2s; }

.phase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.phase-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); padding: 38px 34px;
  display: flex; flex-direction: column; gap: 22px;
  transition: transform .35s, border-color .35s, box-shadow .35s;
}
.phase-card:hover { transform: translateY(-8px); border-color: var(--line-strong); box-shadow: 0 24px 60px rgba(0,0,0,.4); }
.phase-card-2 {
  background: linear-gradient(165deg, rgba(85,214,194,.07), transparent 55%), var(--panel);
}
.phase-tag {
  display: inline-block; font-family: var(--font-en); font-size: .74rem;
  letter-spacing: .26em; color: var(--gold);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 5px 16px; margin-bottom: 16px;
}
.phase-card-2 .phase-tag { color: var(--cyan); border-color: rgba(85,214,194,.4); }
.phase-head h3 { font-size: 1.5rem; font-weight: 900; margin-bottom: 6px; }
.phase-en { font-family: var(--font-en); font-size: .78rem; letter-spacing: .24em; color: var(--text-faint); }
.phase-desc { font-size: .93rem; color: var(--text-dim); }
.phase-desc b { color: var(--gold-bright); }
.chip-phase li { font-size: .82rem; }

.collab-list { display: flex; flex-direction: column; gap: 10px; }
.collab-list li {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  font-size: .86rem;
  background: rgba(85,214,194,.05); border: 1px dashed rgba(85,214,194,.3);
  border-radius: 10px; padding: 10px 16px;
}
.collab-list i { color: var(--cyan); font-size: .78rem; }
.collab-list span { color: var(--text); }

.phase-metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  border-top: 1px dashed var(--line); padding-top: 22px;
}
.phase-metrics li { display: flex; flex-direction: column; gap: 4px; text-align: center; }
.metric-num {
  font-family: var(--font-en); font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 600; color: var(--gold-bright);
}
.phase-card-2 .metric-num { color: var(--cyan); }
.phase-metrics li span:last-child { font-size: .8rem; color: var(--text-dim); letter-spacing: .18em; }

.phase-moat {
  margin-top: auto;
  font-size: .84rem; color: var(--text-dim);
  background: rgba(216,181,108,.06); border-left: 3px solid var(--gold);
  border-radius: 0 10px 10px 0; padding: 16px 18px;
}
.phase-moat b:first-child {
  display: block; font-family: var(--font-en); letter-spacing: .22em;
  color: var(--gold-bright); margin-bottom: 6px; font-size: .8rem;
}
.phase-moat b { color: var(--gold-bright); }
.phase-card-2 .phase-moat { border-left-color: var(--cyan); background: rgba(85,214,194,.05); }
.phase-card-2 .phase-moat b { color: var(--cyan); }
.phase-moat i { margin-right: 6px; }

/* ==========================================================
   联系我们 & 页脚
   ========================================================== */
.contact-inner { text-align: center; }
.contact-inner .section-sub { margin-left: auto; margin-right: auto; }
.contact-cards { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; }
.contact-card {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  min-width: 280px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); padding: 34px 40px;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.contact-card:hover { transform: translateY(-6px); border-color: var(--gold); box-shadow: 0 18px 46px rgba(216,181,108,.14); }
.contact-card i { font-size: 1.5rem; color: var(--gold); margin-bottom: 6px; }
.contact-label { font-family: var(--font-en); font-size: .74rem; letter-spacing: .3em; color: var(--text-faint); }
.contact-value { font-family: var(--font-en); font-size: 1.15rem; letter-spacing: .06em; color: var(--text); }

#site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: 54px 0 40px;
  text-align: center;
}
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 16px; }
.footer-slogan { color: var(--text-dim); font-size: .92rem; margin-bottom: 10px; }
.footer-copy { color: var(--text-faint); font-size: .8rem; letter-spacing: .06em; }

/* ==========================================================
   响应式
   ========================================================== */
@media (max-width: 1024px) {
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .pipeline { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .pipe-step:nth-child(3n)::after { display: none; }
  .shift-list { grid-template-columns: repeat(2, 1fr); }
  .arch-layer { grid-template-columns: 1fr; gap: 14px; }
}

@media (max-width: 820px) {
  #nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 62px 4% auto 4%;
    flex-direction: column; gap: 0;
    background: rgba(11,14,23,.97); border: 1px solid var(--line);
    border-radius: 14px; padding: 10px 0;
    opacity: 0; visibility: hidden; transform: translateY(-12px);
    transition: opacity .3s, transform .3s, visibility .3s;
  }
  .nav-links.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links a { display: block; padding: 14px 0; }
  .nav-cta { border: none; margin: 6px 20px; }

  .paradigm-grid { grid-template-columns: 1fr; }
  .paradigm-arrow { transform: rotate(90deg); padding: 4px 0; animation: none; }
  .phase-grid { grid-template-columns: 1fr; }
  .base-row { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
}

@media (max-width: 560px) {
  .pain-grid { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: repeat(2, 1fr); }
  .pipe-step:nth-child(3n)::after { display: inline; }
  .pipe-step:nth-child(2n)::after { display: none; }
  .shift-list { grid-template-columns: 1fr; }
  .hero-stats li:not(:last-child)::after { display: none; }
  .conclusion-banner { padding: 28px 20px; }
  .timeline-bar .tl-node { font-size: .68rem; padding: 5px 12px; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .pulse-dot, .paradigm-arrow, .scroll-hint { animation: none; }
}