/* ================================================================
 *  UCOMBINE 解决方案集合页专属样式 · solutions.css
 *  规则：所有新类名以 sol- 开头，仅新增、不重定义 styles.css /
 *       home.css 中的任何原始 class，加载顺序在两者之后。
 *       复用：.container .section .eyebrow .sec-head .btn .reveal
 *            .stagger .home-count .home-pcard .cta .contact 等。
 * ================================================================ */

/* ---------------- 分区底色助手（仅新增属性，不与 .section 冲突） ---- */
.sol-bg-surface { background: var(--surface); position: relative; }
.sol-bg-tint    { background: var(--surface-2); position: relative; }
.sol-bg-surface::before,
.sol-bg-tint::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(680px 380px at 76% 12%, rgba(11, 124, 147, 0.05), transparent 60%);
}
.sol-bg-surface > .container,
.sol-bg-tint > .container { position: relative; }

/* ================================================================
   1. HERO 右侧「覆盖总览」面板（复用 home-param 内部类，
      仅自建容器——不依赖 home.css 的 .home-hero-matrix 容器）
   ================================================================ */
.sol-hero-panel {
  position: relative;
  width: 100%;
  max-width: 470px;
  justify-self: end;
  background: linear-gradient(155deg, #FFFFFF, #DCEAED);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 22px 20px;
  color: var(--ink);
  box-shadow: 0 34px 68px -30px rgba(8, 38, 48, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.7);
  overflow: hidden;
}
.sol-hero-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(340px 210px at 82% -10%, rgba(11, 124, 147, 0.12), transparent 68%);
}
.sol-hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(10, 42, 51, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 42, 51, 0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(130% 110% at 50% 40%, #000, transparent 78%);
          mask-image: radial-gradient(130% 110% at 50% 40%, #000, transparent 78%);
}
/* 面板内继续复用 home-matrix-header / home-param-grid / home-param-cell 等 */

/* ---------------- 品牌溯源 slim 版复用 home-heritage，无需新增 --------- */

/* ================================================================
   2. 需求洞察 · 三种角色卡片
   ================================================================ */
.sol-need-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 8px;
}
.sol-need {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px 28px 26px;
  box-shadow: var(--shadow-rest);
  overflow: hidden;
  transition: border-color 0.28s, transform 0.28s, box-shadow 0.28s;
}
.sol-need::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--aqua), var(--aqua-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.32s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.sol-need:hover {
  border-color: rgba(11, 124, 147, 0.5);
  transform: translateY(-5px);
  box-shadow: 0 20px 38px -20px rgba(8, 38, 48, 0.4);
}
.sol-need:hover::before { transform: scaleX(1); }
.sol-need-head { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; }
.sol-need-ic { width: 30px; height: 30px; color: var(--aqua); flex: 0 0 auto; }
.sol-need h3 { font-size: 19px; color: var(--ink); letter-spacing: -0.01em; margin: 0; }
.sol-need-role {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 20px 44px;
}
.sol-need-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.sol-need-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--line-2);
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
}
.sol-need-item:first-child { border-top: 0; padding-top: 4px; }
.sol-need-item .lbl {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--aqua);
  border: 1px solid rgba(11, 124, 147, 0.4);
  background: rgba(11, 124, 147, 0.07);
  border-radius: 100px;
  padding: 3px 10px;
  white-space: nowrap;
}

/* ================================================================
   3. 解决方案矩阵 · 过滤条 + 卡片内附加元素
      （卡片本体复用 home-pcard / home-pgrid，此处仅补充）
   ================================================================ */
.sol-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.sol-chip {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 9px 18px;
  cursor: pointer;
  transition: all 0.2s;
}
.sol-chip .c { color: var(--muted); margin-left: 6px; opacity: 0.7; }
.sol-chip:hover { border-color: rgba(11, 124, 147, 0.55); color: var(--ink); }
.sol-chip[aria-pressed="true"] {
  background: var(--aqua);
  border-color: var(--aqua);
  color: #fff;
  font-weight: 600;
}
.sol-chip[aria-pressed="true"] .c { color: rgba(255, 255, 255, 0.78); }

.sol-solutions-grid { margin-top: 44px; }
.home-pcard.sol-hide { display: none; }

/* 卡片内：适用场景标签 + 参数标签组 */
.sol-plabel {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
}
.sol-pmeta {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line-2);
}
.sol-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.sol-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--aqua-ink);
  background: rgba(11, 124, 147, 0.07);
  border: 1px solid rgba(11, 124, 147, 0.26);
  border-radius: 100px;
  padding: 4px 10px;
  letter-spacing: 0.02em;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.home-pcard:hover .sol-tag {
  border-color: rgba(11, 124, 147, 0.4);
  background: rgba(11, 124, 147, 0.1);
}
/* 分类徽章沿用 home-pcard-badge；此处让文案色更偏中性 */
.sol-cat-badge { color: var(--aqua-ink) !important; }

/* ================================================================
   4. 方案优势 · 深色区列表（置于复用的 .apps 深色皮肤内）
   ================================================================ */
.sol-adv-list {
  display: grid;
  gap: 1px;
  background: var(--line-dk);
  border: 1px solid var(--line-dk);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 8px;
}
.sol-adv {
  background: var(--deep-2);
  padding: 26px 30px;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 22px;
  align-items: start;
  transition: background 0.25s;
}
.sol-adv:hover { background: #0F4553; }
.sol-adv-ic { width: 30px; height: 30px; color: var(--aqua-2); flex: 0 0 auto; margin-top: 2px; }
.sol-adv-main b {
  display: block;
  font-size: 18px;
  color: #EFF7F8;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 16px;
}
.sol-adv-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px 28px;
}
.sol-adv-point {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: #A7C6CD;
  line-height: 1.5;
  transition: color 0.25s;
}
.sol-adv-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--aqua-2);
}
.sol-adv:hover .sol-adv-point { color: #CDE6EA; }

/* ================================================================
   5. 产品体系 · 分类矩阵表（浅色区 · 深色表头）
   ================================================================ */
.sol-ptable {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-rest);
  margin-top: 8px;
}
.sol-ptable-head,
.sol-prow {
  display: grid;
  grid-template-columns: 1.05fr 1.7fr 1.9fr;
}
.sol-ptable-head {
  background: var(--ink);
}
.sol-ptable-head > div {
  padding: 15px 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-dk);
}
.sol-prow {
  position: relative;
  border-top: 1px solid var(--line-2);
  transition: background 0.2s;
}
.sol-prow:hover { background: #F3FAFB; }
.sol-prow > div { padding: 18px 24px; }
.sol-prow .cat {
  position: relative;
  font-family: var(--display);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.sol-prow .cat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  border-radius: 2px;
  background: var(--aqua);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.28s;
}
.sol-prow:hover .cat::before { transform: scaleY(1); }
.sol-prow .rep { color: var(--ink); font-size: 14px; line-height: 1.55; }
.sol-prow .feat { color: var(--muted); font-size: 13.5px; line-height: 1.55; }
.sol-prow .feat b { color: var(--aqua-ink); font-weight: 600; }
.sol-lbl {
  display: none;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--aqua);
  margin-bottom: 6px;
}

/* ================================================================
   6. 服务保障 · 三阶段流程（浅色区）
   ================================================================ */
.sol-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 8px;
}
.sol-step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px 28px 28px;
  box-shadow: var(--shadow-rest);
  transition: border-color 0.28s, transform 0.28s, box-shadow 0.28s;
}
.sol-step:hover {
  border-color: rgba(11, 124, 147, 0.5);
  transform: translateY(-5px);
  box-shadow: 0 20px 38px -20px rgba(8, 38, 48, 0.4);
}
.sol-step-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.sol-step-no {
  font-family: var(--display);
  font-weight: 700;
  font-size: 34px;
  color: rgba(11, 124, 147, 0.22);
  letter-spacing: -0.02em;
  line-height: 1;
  transition: color 0.28s;
}
.sol-step:hover .sol-step-no { color: rgba(11, 124, 147, 0.4); }
.sol-step-ic { width: 30px; height: 30px; color: var(--aqua); flex: 0 0 auto; }
.sol-step h3 { font-size: 19px; color: var(--ink); letter-spacing: -0.01em; margin: 0 0 4px; }
.sol-step-list {
  list-style: none;
  margin: 16px 0 0;
  padding-top: 15px;
  border-top: 1px solid var(--line-2);
  display: grid;
  gap: 11px;
}
.sol-step-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}
.sol-step-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--aqua);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* ================================================================
   7. 响应式（沿用站点断点 1080 / 900 / 680 / 460）
   ================================================================ */
@media (max-width: 1080px) {
  .sol-adv-points { grid-template-columns: repeat(3, 1fr); gap: 10px 20px; }
}
@media (max-width: 900px) {
  .sol-need-grid { grid-template-columns: 1fr; }
  .sol-hero-panel { max-width: 100%; justify-self: center; margin-top: 26px; }
  .sol-adv { grid-template-columns: 1fr; gap: 16px; }
  .sol-adv-points { grid-template-columns: repeat(2, 1fr); }
  .sol-flow { grid-template-columns: 1fr; gap: 16px; }
}
@media (max-width: 760px) {
  .sol-ptable-head { display: none; }
  .sol-prow { grid-template-columns: 1fr; }
  .sol-prow > div { padding: 4px 22px; }
  .sol-prow .cat { padding-top: 18px; font-size: 17px; }
  .sol-prow .cat::before { display: none; }
  .sol-prow .feat { padding-bottom: 18px; }
  .sol-lbl { display: block; }
}
@media (max-width: 680px) {
  .sol-adv-points { grid-template-columns: 1fr; }
  .sol-filters { gap: 8px; }
  .sol-chip { padding: 8px 15px; font-size: 12.5px; }
}

/* ================================================================
   2b. 需求洞察卡片增强 · 关注点 + 您将获得清单 + 行动按钮
   （复用 .sol-need / .sol-need-head / .sol-need-ic / .sol-need-role）
   ================================================================ */
.sol-need { display: flex; flex-direction: column; }

.sol-need-focus {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.55;
  margin: 0 0 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-2);
}
.sol-need-focus-tag {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--aqua);
  border: 1px solid rgba(11, 124, 147, 0.4);
  background: rgba(11, 124, 147, 0.07);
  border-radius: 100px;
  padding: 3px 10px;
  white-space: nowrap;
}

.sol-need-gain-lbl {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.sol-need-deliver {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.sol-need-deliver li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}
.sol-need-deliver li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 3px;
  width: 6px;
  height: 11px;
  border: solid var(--aqua);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.sol-need-cta {
  margin-top: auto;
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}
.sol-need-btn {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  font-weight: 600;
  color: #fff;
  background: var(--aqua);
  padding: 10px 18px;
  border-radius: 4px;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 10px 22px -12px rgba(11, 124, 147, 0.7);
}
.sol-need-btn:hover {
  background: var(--aqua-ink);
  transform: translateY(-2px);
}
.sol-need-link {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--aqua-ink);
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.sol-need-link:hover { color: var(--aqua); border-color: var(--aqua); }

@media (max-width: 680px) {
  .sol-need-cta { gap: 10px 14px; }
  .sol-need-btn { padding: 9px 15px; }
}


/* ================================================================
 * ================================================================
 *  方案详情页专属追加 · solution-detail (排水管网)
 *  仍遵守 sol- 前缀规则；复用 .hero/.facts/.spec-*/.sol-adv*/.cta 等
 * ================================================================
 * ================================================================ */

/* ---- 详情页面包屑（承接 .hero，置于标题上方） ---------------- */
.sol-crumb {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 4px;
}
.sol-crumb a { color: var(--muted); transition: color 0.2s; }
.sol-crumb a:hover { color: var(--aqua); }
.sol-crumb .sep { opacity: 0.5; }
.sol-crumb .cur { color: var(--aqua-ink); }

/* ---- 详情页 HERO：左文案 + 右实时面板（复用 .screen 组件） ----
   .hero-grid 已是 1.55fr/.95fr；此处仅微调标签组与设备容器 */
.sol-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 4px;
}
.sol-hero-badge {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--aqua-ink);
  background: rgba(11, 124, 147, 0.07);
  border: 1px solid rgba(11, 124, 147, 0.28);
  border-radius: 100px;
  padding: 5px 13px;
}
.sol-hero-badge b { font-weight: 600; color: var(--aqua); }

/* ================================================================
   OV · 方案概述（左正文 + 右适用信息卡）
   ================================================================ */
.sol-ov-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 40px;
  align-items: start;
  margin-top: 8px;
}
.sol-ov-body p {
  font-size: 15.5px;
  color: var(--muted);
  line-height: 1.75;
}
.sol-ov-body p + p { margin-top: 18px; }
.sol-ov-body b { color: var(--aqua-ink); font-weight: 600; }

.sol-ov-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 26px 26px 24px;
  box-shadow: var(--shadow-rest);
  overflow: hidden;
}
.sol-ov-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--aqua), var(--aqua-2));
}
.sol-ov-block + .sol-ov-block {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line-2);
}
.sol-ov-lbl {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.sol-ov-lbl svg { width: 15px; height: 15px; color: var(--aqua); flex: 0 0 auto; }
.sol-ov-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sol-ov-tag {
  font-size: 13px;
  color: var(--ink);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 6px 12px;
  line-height: 1.4;
}

/* ================================================================
   PROD · 四款主推产品卡
   ================================================================ */
.sol-prod-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 8px;
}
.sol-prod {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 28px 26px;
  box-shadow: var(--shadow-rest);
  overflow: hidden;
  transition: border-color 0.28s, transform 0.28s, box-shadow 0.28s;
}
.sol-prod::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--aqua), var(--aqua-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.32s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.sol-prod:hover {
  border-color: rgba(11, 124, 147, 0.5);
  transform: translateY(-5px);
  box-shadow: 0 20px 38px -20px rgba(8, 38, 48, 0.4);
}
.sol-prod:hover::before { transform: scaleX(1); }
.sol-prod-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.sol-prod-code {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--aqua);
  border: 1px solid rgba(11, 124, 147, 0.4);
  background: rgba(11, 124, 147, 0.07);
  border-radius: 4px;
  padding: 4px 10px;
}
.sol-prod-pos {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--muted);
  text-align: right;
  max-width: 190px;
  line-height: 1.45;
}
.sol-prod-name {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 16px 0 0;
}
.sol-prod-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-2);
  display: grid;
  gap: 12px;
}
.sol-prod-list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
}
.sol-prod-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--aqua);
  border-radius: 2px;
  transform: rotate(45deg);
}
.sol-prod-list li b { color: var(--aqua-ink); font-weight: 600; }
.sol-prod-scene {
  margin-top: auto;
  padding-top: 18px;
}
.sol-prod-scene .lbl {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.sol-prod-scene p {
  font-size: 13px;
  color: var(--ink);
  line-height: 1.6;
  padding: 12px 14px;
  background: var(--surface-2);
  border-radius: 6px;
  border-left: 2px solid var(--aqua);
}

/* ================================================================
   ARCH · 三级架构图（复刻 ASCII 为真实分层，含向上流向）
   置于深色 .specsec 皮肤内
   ================================================================ */
.sol-arch {
  display: grid;
  gap: 0;
  margin-top: 8px;
}
.sol-arch-layer {
  position: relative;
  border: 1px solid var(--line-dk);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.025);
  padding: 22px 26px;
  transition: background 0.25s, border-color 0.25s;
}
.sol-arch-layer:hover {
  background: rgba(31, 163, 186, 0.06);
  border-color: rgba(31, 163, 186, 0.35);
}
.sol-arch-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.sol-arch-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--aqua-2);
  border: 1px solid rgba(31, 163, 186, 0.4);
  border-radius: 100px;
  padding: 3px 11px;
}
.sol-arch-title { font-size: 17px; font-weight: 600; color: #F2FAFB; letter-spacing: 0.01em; }
.sol-arch-items {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.sol-arch-chip {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.01em;
  color: #CFE6EA;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-dk);
  border-radius: 5px;
  padding: 7px 13px;
}
.sol-arch-arrow {
  justify-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--aqua-2);
  padding: 9px 0;
}
.sol-arch-arrow svg { width: 20px; height: 20px; }
.sol-arch-arrow span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted-dk);
  margin-top: 2px;
}

/* ================================================================
   CFG · 点位产品配置参考（四列表 → 移动端卡片）
   ================================================================ */
.sol-cfg {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-rest);
  margin-top: 8px;
}
.sol-cfg-head,
.sol-cfg-row {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1.5fr 1.6fr;
}
.sol-cfg-head { background: var(--ink); }
.sol-cfg-head > div {
  padding: 15px 22px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted-dk);
}
.sol-cfg-row {
  position: relative;
  border-top: 1px solid var(--line-2);
  transition: background 0.2s;
}
.sol-cfg-row:hover { background: #F3FAFB; }
.sol-cfg-row > div { padding: 18px 22px; }
.sol-cfg-row .pt {
  position: relative;
  font-family: var(--display);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.sol-cfg-row .pt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  border-radius: 2px;
  background: var(--aqua);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.28s;
}
.sol-cfg-row:hover .pt::before { transform: scaleY(1); }
.sol-cfg-row .combo {
  color: var(--ink);
  font-size: 13.5px;
  line-height: 1.55;
}
.sol-cfg-row .combo code {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--aqua-ink);
  background: rgba(11, 124, 147, 0.07);
  border-radius: 3px;
  padding: 1px 6px;
}
.sol-cfg-row .param { color: var(--muted); font-size: 13px; line-height: 1.55; }
.sol-cfg-row .value { color: var(--muted); font-size: 13px; line-height: 1.55; }
.sol-cfg-row .value b { color: var(--aqua-ink); font-weight: 600; }
.sol-cfg-lbl {
  display: none;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--aqua);
  margin-bottom: 6px;
}

/* ================================================================
   FN · 系统主要功能（四组 · 浅色区 2×2）
   ================================================================ */
.sol-fn-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 8px;
}
.sol-fn {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 30px 26px;
  box-shadow: var(--shadow-rest);
  transition: border-color 0.28s, transform 0.28s, box-shadow 0.28s;
}
.sol-fn:hover {
  border-color: rgba(11, 124, 147, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 20px 38px -20px rgba(8, 38, 48, 0.4);
}
.sol-fn-head {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line-2);
}
.sol-fn-ic {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: var(--aqua);
  background: rgba(11, 124, 147, 0.08);
  border: 1px solid rgba(11, 124, 147, 0.24);
  border-radius: 8px;
}
.sol-fn-ic svg { width: 19px; height: 19px; }
.sol-fn-head h3 { font-size: 18px; color: var(--ink); letter-spacing: -0.01em; margin: 0; }
.sol-fn-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.sol-fn-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 11px;
  align-items: baseline;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
}
.sol-fn-list .k {
  font-family: var(--display);
  font-weight: 600;
  font-size: 13.5px;
  color: var(--ink);
  white-space: nowrap;
}

/* ================================================================
   SCENE · 典型应用场景（8 · 4×2 紧凑卡）
   ================================================================ */
.sol-scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 8px;
}
.sol-scene {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px 22px 22px;
  box-shadow: var(--shadow-rest);
  overflow: hidden;
  transition: border-color 0.28s, transform 0.28s, box-shadow 0.28s;
}
.sol-scene:hover {
  border-color: rgba(11, 124, 147, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 18px 34px -20px rgba(8, 38, 48, 0.4);
}
.sol-scene-ic {
  width: 30px;
  height: 30px;
  color: var(--aqua);
  margin-bottom: 14px;
}
.sol-scene h3 {
  font-size: 15.5px;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  line-height: 1.4;
}
.sol-scene p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

/* ================================================================
   详情页响应式补充
   ================================================================ */
@media (max-width: 1080px) {
  .sol-scene-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .sol-ov-grid { grid-template-columns: 1fr; gap: 28px; }
  .sol-prod-grid { grid-template-columns: 1fr; }
  .sol-fn-grid { grid-template-columns: 1fr; }
  .sol-cfg-head { display: none; }
  .sol-cfg-row { grid-template-columns: 1fr; }
  .sol-cfg-row > div { padding: 4px 22px; }
  .sol-cfg-row .pt { padding-top: 18px; font-size: 16px; }
  .sol-cfg-row .pt::before { display: none; }
  .sol-cfg-row .value { padding-bottom: 18px; }
  .sol-cfg-lbl { display: block; }
}
@media (max-width: 680px) {
  .sol-scene-grid { grid-template-columns: 1fr; }
  .sol-prod-pos { max-width: 100%; text-align: left; }
  .sol-arch-layer { padding: 20px; }
}


——



/* ============ 自托管字体的 CDN 镜像（预览用，可替换为本地 fonts.css） ============ */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:400;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/space-grotesk@latest/latin-400-normal.woff2') format('woff2');}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/space-grotesk@latest/latin-500-normal.woff2') format('woff2');}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/space-grotesk@latest/latin-600-normal.woff2') format('woff2');}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/space-grotesk@latest/latin-700-normal.woff2') format('woff2');}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/ibm-plex-mono@latest/latin-400-normal.woff2') format('woff2');}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/ibm-plex-mono@latest/latin-500-normal.woff2') format('woff2');}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:600;font-display:swap;src:url('https://cdn.jsdelivr.net/fontsource/fonts/ibm-plex-mono@latest/latin-600-normal.woff2') format('woff2');}

/* ============ 设计令牌 ============ */
:root{
  --paper:#F1F5F6;
  --surface:#FFFFFF;
  --surface-2:#E9F0F1;
  --ink:#0C1A1F;
  --ink-2:#33474D;
  --ink-3:#6A7B80;
  --line:#D3DEDF;
  --line-2:#BECBCD;
  --teal:#0B7681;
  --teal-deep:#0A5A63;
  --aqua:#0FA0AC;
  --wash:#DDEEEF;
  --alert:#C13A20;
  --alert-wash:#F6E4DF;
  --amber:#B26B12;
  --shadow-sm:0 1px 2px rgba(12,26,31,.05);
  --shadow:0 1px 2px rgba(12,26,31,.05),0 18px 36px -24px rgba(12,26,31,.30);
  --r:16px;
  --r-sm:10px;
  --maxw:1200px;
  --display:'Space Grotesk','PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.72;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.22;letter-spacing:-.01em;}
p{margin:0;}
img,svg{display:block;max-width:100%;}
::selection{background:var(--teal);color:#fff;}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,5vw,52px);}

/* eyebrow / mono 小标签 */
.eyebrow{
  font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;color:var(--teal);display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1.5px;background:var(--teal);display:inline-block;}
.mono{font-family:var(--mono);}

/* 通用 section */
.section{padding-block:clamp(64px,8vw,112px);position:relative;}
.section--alt{background:var(--surface-2);}
.section--ink{background:var(--ink);color:#DCE7E8;}
.s-head{max-width:760px;margin-bottom:clamp(36px,5vw,56px);}
.s-head h2{
  font-size:clamp(26px,4.4vw,42px);margin-top:16px;color:var(--ink);
  letter-spacing:-.02em;
}
.section--ink .s-head h2{color:#fff;}
.s-head .lead{margin-top:18px;color:var(--ink-2);font-size:clamp(15px,1.6vw,17px);line-height:1.8;}
.section--ink .s-head .lead{color:#AFC2C4;}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:9px;}
.chip{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-radius:100px;
  padding:7px 14px;white-space:nowrap;
}
.chip--teal{color:var(--teal-deep);background:var(--wash);border-color:transparent;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;
  font-size:15px;padding:13px 22px;border-radius:100px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn svg{width:16px;height:16px;}
.btn--primary{background:var(--teal);color:#fff;}
.btn--primary:hover{background:var(--teal-deep);transform:translateY(-2px);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-2);}
.btn--ghost:hover{border-color:var(--teal);color:var(--teal-deep);transform:translateY(-2px);}
.section--ink .btn--ghost{color:#fff;border-color:rgba(255,255,255,.28);}
.section--ink .btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}

/* ============ NAV ============ */
.nav{
  position:sticky;top:0;z-index:60;background:rgba(241,245,246,.82);
  backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px;}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--display);font-weight:600;font-size:16px;color:var(--ink);white-space:nowrap;}
.brand .mark{width:30px;height:30px;flex:none;}
.brand small{font-family:var(--mono);font-weight:400;font-size:10.5px;letter-spacing:.14em;color:var(--ink-3);display:block;text-transform:uppercase;margin-top:1px;}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--ink-2);}
.nav-links a{position:relative;padding:4px 0;transition:color .16s;}
.nav-links a:hover,.nav-links a.active{color:var(--teal-deep);}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--teal);border-radius:2px;}
.nav-cta{display:flex;align-items:center;gap:14px;}
.nav-toggle{display:none;background:none;border:1px solid var(--line-2);border-radius:8px;width:40px;height:36px;cursor:pointer;color:var(--ink);align-items:center;justify-content:center;}
.nav-toggle svg{width:20px;height:20px;}

/* ============ HERO ============ */
.hero{position:relative;padding-top:clamp(48px,7vw,84px);padding-bottom:clamp(40px,6vw,72px);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(60% 55% at 82% 8%,rgba(15,160,172,.10),transparent 60%),
    radial-gradient(40% 40% at 10% 90%,rgba(11,118,129,.08),transparent 60%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(32px,5vw,64px);align-items:center;}
.hero h1{
  font-size:clamp(32px,5.2vw,58px);margin-top:22px;letter-spacing:-.028em;line-height:1.12;color:var(--ink);
}
.hero .sub{margin-top:22px;font-size:clamp(15px,1.7vw,18px);color:var(--ink-2);line-height:1.82;max-width:600px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.stat{
  border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:12px 16px;min-width:130px;flex:1 1 auto;
}
.stat .k{font-family:var(--display);font-weight:700;font-size:19px;color:var(--teal-deep);letter-spacing:-.01em;}
.stat .v{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);letter-spacing:.04em;margin-top:2px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

/* 信封：hero 流程示意图 */
.flowcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);
  padding:22px 22px 18px;
}
.flow-legend{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.fl{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11.5px;color:var(--ink-2);
  background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:6px 10px;flex:1 1 0;min-width:0;}
.fl b{font-weight:600;color:var(--teal-deep);}
.fl .n{font-family:var(--display);font-weight:700;color:#fff;background:var(--teal);width:18px;height:18px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;font-size:11px;flex:none;}
.flow-svg{width:100%;height:auto;}
.flow-foot{display:flex;justify-content:space-between;gap:10px;margin-top:12px;padding-top:12px;border-top:1px dashed var(--line-2);font-family:var(--mono);font-size:11px;color:var(--ink-3);flex-wrap:wrap;}
.flow-foot b{color:var(--teal-deep);font-weight:600;}

/* svg 动画 */
.pipe{fill:none;stroke:var(--line-2);stroke-width:5;stroke-linecap:round;}
.flow-line{fill:none;stroke:var(--aqua);stroke-width:3;stroke-linecap:round;stroke-dasharray:5 12;animation:flow 1.3s linear infinite;}
@keyframes flow{to{stroke-dashoffset:-34;}}
.node{fill:var(--ink);}
.ring{fill:none;stroke:var(--teal);stroke-width:2;transform-box:fill-box;transform-origin:center;animation:pulse 2.6s ease-out infinite;}
.ring.d1{animation-delay:.5s;}.ring.d2{animation-delay:1s;}.ring.d3{animation-delay:1.5s;}
@keyframes pulse{0%{r:7;opacity:.9;}70%{r:16;opacity:0;}100%{opacity:0;}}
.station{fill:var(--wash);stroke:var(--teal);stroke-width:2;}
.drop{fill:var(--aqua);}

/* ============ 概述：适用对象/监测点位 ============ */
.def-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px;}
.def{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;}
.def h4{font-family:var(--mono);font-weight:500;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin-bottom:16px;}
.def h4 .cn{font-family:var(--sans);font-weight:600;font-size:15px;letter-spacing:0;color:var(--ink);text-transform:none;margin-left:10px;}

/* ============ 产品卡 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.pcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;
  display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;position:relative;overflow:hidden;
}
.pcard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(var(--teal),var(--aqua));opacity:0;transition:opacity .2s;}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent;}
.pcard:hover::before{opacity:1;}
.pcard .model{font-family:var(--display);font-weight:700;font-size:22px;color:var(--ink);letter-spacing:-.01em;}
.pcard .pname{font-size:14px;color:var(--ink-2);margin-top:4px;font-weight:500;}
.pcard .role{font-family:var(--mono);font-size:11.5px;color:var(--teal-deep);background:var(--wash);border-radius:8px;padding:8px 12px;margin:16px 0 14px;line-height:1.5;}
.pcard ul{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-direction:column;gap:9px;}
.pcard li{font-size:13.5px;color:var(--ink-2);line-height:1.62;padding-left:18px;position:relative;}
.pcard li::before{content:"";position:absolute;left:2px;top:8px;width:6px;height:6px;border-radius:2px;background:var(--teal);opacity:.7;}
.pcard li .code{font-family:var(--mono);font-size:12px;color:var(--teal-deep);}
.pcard .scene{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:7px;}
.pcard .scene span{font-family:var(--mono);font-size:11px;color:var(--ink-3);background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:4px 9px;}

/* ============ 架构 ============ */
.arch{display:flex;flex-direction:column;gap:16px;max-width:960px;margin:0 auto;}
.layer{
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:24px 26px;position:relative;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
}
.layer .lh{display:flex;align-items:baseline;gap:14px;margin-bottom:14px;flex-wrap:wrap;}
.layer .lh .idx{font-family:var(--mono);font-size:12px;color:var(--aqua);letter-spacing:.1em;}
.layer .lh h4{font-size:19px;color:#fff;}
.layer .lchips{display:flex;flex-wrap:wrap;gap:8px;}
.layer .lchips span{font-family:var(--mono);font-size:12px;color:#CDDDDE;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:6px 11px;}
.layer--top{border-color:rgba(15,160,172,.5);background:linear-gradient(180deg,rgba(15,160,172,.16),rgba(15,160,172,.05));}
.arch-arrow{display:flex;justify-content:center;color:var(--aqua);}
.arch-arrow svg{width:22px;height:22px;}
.arch-note{text-align:center;margin-top:22px;font-family:var(--mono);font-size:12px;color:#8FA6A8;letter-spacing:.04em;}

/* ============ 表格 ============ */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);}
table{width:100%;border-collapse:collapse;min-width:680px;}
thead th{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--teal-deep);
  text-align:left;padding:15px 20px;background:var(--wash);border-bottom:1px solid var(--line);white-space:nowrap;font-weight:600;
}
tbody td{padding:15px 20px;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--ink-2);vertical-align:top;line-height:1.6;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:hover{background:var(--paper);}
td .pt{font-family:var(--display);font-weight:600;color:var(--ink);font-size:14.5px;}
td .code,td .mono{font-family:var(--mono);font-size:12.5px;color:var(--teal-deep);}
td .num{font-family:var(--mono);color:var(--ink);}

/* ============ 优势 ============ */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.adv{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;transition:border-color .2s,transform .2s;}
.adv:hover{transform:translateY(-3px);border-color:var(--line-2);}
.adv .ico{width:42px;height:42px;border-radius:11px;background:var(--wash);color:var(--teal-deep);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.adv .ico svg{width:22px;height:22px;}
.adv.is-alert .ico{background:var(--alert-wash);color:var(--alert);}
.adv h4{font-size:17px;color:var(--ink);margin-bottom:9px;}
.adv p{font-size:13.5px;color:var(--ink-2);line-height:1.72;}

/* ============ 功能 ============ */
.fn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.fn{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;}
.fn h4{display:flex;align-items:center;gap:10px;font-size:15.5px;color:var(--ink);margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.fn h4 .dot{width:9px;height:9px;border-radius:50%;background:var(--teal);flex:none;}
.fn.is-alert h4 .dot{background:var(--alert);}
.fn ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.fn li{font-size:13.5px;color:var(--ink-2);line-height:1.6;padding-left:20px;position:relative;}
.fn li::before{content:"▸";position:absolute;left:0;top:0;color:var(--teal);font-size:12px;}
.fn.is-alert li::before{color:var(--alert);}
.fn li b{color:var(--ink);font-weight:600;}

/* ============ 三级预警 legend ============ */
.warn-legend{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}
.wl{flex:1 1 200px;border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--surface);}
.wl .tag{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;display:inline-flex;align-items:center;gap:7px;font-weight:600;}
.wl .tag::before{content:"";width:9px;height:9px;border-radius:50%;}
.wl.l1 .tag{color:var(--teal-deep);}.wl.l1 .tag::before{background:var(--teal);}
.wl.l2 .tag{color:var(--amber);}.wl.l2 .tag::before{background:var(--amber);}
.wl.l3 .tag{color:var(--alert);}.wl.l3 .tag::before{background:var(--alert);}
.wl p{font-size:13px;color:var(--ink-2);margin-top:8px;line-height:1.6;}

/* ============ 应用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.scard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;position:relative;transition:transform .2s,box-shadow .2s;}
.scard:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.scard .no{font-family:var(--display);font-weight:700;font-size:14px;color:var(--teal);letter-spacing:.05em;}
.scard h4{font-size:16px;color:var(--ink);margin:8px 0 10px;}
.scard p{font-size:13.5px;color:var(--ink-2);line-height:1.68;}

/* ============ CTA / footer ============ */
.cta{background:var(--ink);color:#fff;border-radius:0;}
.cta-inner{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;}
.cta h2{font-size:clamp(24px,3.6vw,38px);color:#fff;letter-spacing:-.02em;}
.cta p{margin-top:16px;color:#AFC2C4;font-size:16px;line-height:1.8;max-width:520px;}
.cta-obj{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px;}
.cta-obj span{font-family:var(--mono);font-size:12px;color:#CDDDDE;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:100px;padding:7px 13px;}
.cta-panel{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:28px;}
.cta-panel .row{display:flex;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:14px;}
.cta-panel .row:last-of-type{border-bottom:none;}
.cta-panel .row .lbl{font-family:var(--mono);font-size:12px;color:#8FA6A8;letter-spacing:.06em;}
.cta-panel .row .val{color:#fff;text-align:right;}
.cta-panel .btn{width:100%;justify-content:center;margin-top:20px;}

.foot{background:var(--ink);color:#7E9698;border-top:1px solid rgba(255,255,255,.1);padding-block:34px;font-size:13px;}
.foot .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;}
.foot .std{font-family:var(--mono);font-size:11.5px;color:#6C8385;letter-spacing:.03em;line-height:1.8;}
.foot a{color:#AFC2C4;}

/* ============ reveal 动画 ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media(max-width:1000px){
  .prod-grid,.adv-grid,.fn-grid,.scene-grid{grid-template-columns:repeat(2,1fr);}
  .hero-grid{grid-template-columns:1fr;}
  .flowcard{order:-1;}
  .cta-inner{grid-template-columns:1fr;}
}
@media(max-width:760px){
  .nav-links,.nav-cta .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav.open .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:2px;
    position:absolute;top:64px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);
    padding:12px clamp(20px,5vw,52px) 18px;
  }
  .nav.open .nav-links a{padding:11px 0;width:100%;border-bottom:1px solid var(--line);font-size:15px;}
  .prod-grid,.adv-grid,.fn-grid,.scene-grid,.def-grid{grid-template-columns:1fr;}
}
@media(max-width:480px){
  .fl{flex-basis:100%;}
  .flow-legend{flex-direction:column;}
}

/* reduced motion */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* print */
@media print{
  .nav,.hero-cta,.nav-toggle{display:none;}
  body{background:#fff;color:#000;font-size:12px;}
  .section{padding-block:20px;break-inside:avoid;}
  .section--ink,.cta,.foot{background:#fff!important;color:#000!important;}
  .pcard,.adv,.fn,.def,.scard,.table-wrap,.flowcard{box-shadow:none;border-color:#ccc;break-inside:avoid;}
  .flow-line,.ring{animation:none!important;}