/* ============================================================
   工具中心 /tools/ —— 页面专属样式，全部限定在 .page-products
   ============================================================ */

.page-products {
  --pp-gap: clamp(18px, 2.6vw, 30px);
  --pp-pad: clamp(20px, 3.2vw, 34px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding: 18px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}
.page-products .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}
.page-products .breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}
.page-products .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-products .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-products .breadcrumb [aria-current="page"] {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(28px, 4.6vw, 52px) clamp(44px, 6vw, 78px);
  border-bottom: 1px solid var(--line);
}
.page-products .tools-hero::before {
  content: "";
  position: absolute;
  inset: -12% -6% auto -6%;
  height: 150%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(48% 58% at 80% 10%, rgba(37, 214, 232, 0.18), transparent 70%),
    radial-gradient(44% 54% at 6% 84%, rgba(59, 240, 138, 0.1), transparent 70%);
}
.page-products .tools-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(36, 50, 94, 0.45) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 50, 94, 0.45) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000 4%, transparent 82%);
  mask-image: linear-gradient(180deg, #000 4%, transparent 82%);
}

.page-products .tools-hero h1 {
  margin: 20px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.page-products .tools-hero h1 em {
  font-style: normal;
  color: var(--green);
}
.page-products .tools-hero .lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}
.page-products .tools-hero .exhibit {
  margin: 0;
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-products .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4.4vw, 44px) 0 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
}
.page-products .hero-stats > div {
  background: var(--void-2);
  padding: 16px 18px 18px;
}
.page-products .hero-stats dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.page-products .hero-stats dd {
  margin: 9px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 3vw, 28px);
  letter-spacing: -0.01em;
  color: var(--green);
}
.page-products .hero-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-products .tools-section {
  padding-block: clamp(44px, 6vw, 88px);
  border-bottom: 1px solid var(--line);
}
.page-products .tools-section:last-of-type {
  border-bottom: 0;
}
.page-products .sec-head {
  max-width: 760px;
}
.page-products .sec-head .exhibit {
  margin: 0;
}
.page-products .sec-head h2 {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  max-width: 22ch;
}
.page-products .sec-head p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}
.page-products .section-foot {
  margin: 26px 0 0;
  font-size: 15px;
  color: var(--muted);
}
.page-products .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 214, 232, 0.4);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.page-products .inline-link:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 三栏工具卡 ---------- */
.page-products .tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  margin-top: clamp(30px, 4vw, 46px);
}
.page-products .tool-card {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.page-products .tool-card::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), rgba(37, 214, 232, 0));
  opacity: 0.85;
}
.page-products .tool-card:hover {
  transform: translate(-2px, -4px);
  border-color: var(--cyan);
}
.page-products .tool-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.page-products .tool-card__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 4px 9px;
}
.page-products .tool-card h3 {
  margin: 22px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 21px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.page-products .tool-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-products .tool-card ul {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.page-products .tool-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}
.page-products .tool-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

/* ---------- 两栏通用 ---------- */
.page-products .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}
.page-products .split__main,
.page-products .split__aside {
  min-width: 0;
}

/* ---------- 速度对比条 ---------- */
.page-products .speed-list {
  display: grid;
  gap: 24px;
  margin: clamp(28px, 4vw, 40px) 0 0;
}
.page-products .speed-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
}
.page-products .speed-item__head span:last-child {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.page-products .speed-track {
  margin-top: 10px;
  height: 14px;
  background: var(--void);
  border: 1px solid var(--line);
  overflow: hidden;
}
.page-products .speed-fill {
  display: block;
  height: 100%;
  transform-origin: left center;
  animation: pp-bar-grow 0.9s cubic-bezier(0.2, 0.8, 0.3, 1) both;
}
.page-products .speed-fill--client {
  width: 92%;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  animation-delay: 0.08s;
}
.page-products .speed-fill--web {
  width: 46%;
  background: linear-gradient(90deg, #35426f, var(--muted));
  animation-delay: 0.24s;
}
@keyframes pp-bar-grow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}
.page-products .speed-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 能力清单 ---------- */
.page-products .feature-list {
  display: grid;
  gap: 0;
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-products .feature-list li {
  display: grid;
  gap: 8px;
  padding: 20px 0 20px 20px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.page-products .feature-list li:hover {
  border-left-color: var(--cyan);
  background: rgba(37, 214, 232, 0.04);
}
.page-products .feature-list strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.page-products .feature-list span {
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 图片容器 ---------- */
.page-products .media {
  margin: 0;
  background: var(--void-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
}
.page-products .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .media__caption {
  padding: 14px 18px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.page-products .trend-figure,
.page-products .install-figure {
  margin-top: clamp(30px, 4vw, 46px);
}

/* ---------- 走势区间选择 ---------- */
.page-products .range-tool {
  margin-top: clamp(30px, 4vw, 44px);
}
.page-products .range-strip {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 4px;
}
.page-products .range-strip::before {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  top: 5px;
  height: 1px;
  background: var(--line);
}
.page-products .range-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  text-align: center;
  transition: color 0.2s ease;
}
.page-products .range-chip::before {
  content: "";
  position: relative;
  z-index: 1;
  width: 11px;
  height: 11px;
  background: var(--void);
  border: 1px solid var(--line);
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-products .range-chip:hover {
  color: var(--cyan);
}
.page-products .range-chip:hover::before {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(37, 214, 232, 0.18);
}

.page-products .range-panels {
  margin-top: 26px;
  padding: var(--pp-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cyan);
  box-shadow: var(--shadow-hard);
}
.page-products .range-panel {
  display: none;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}
.page-products .range-panel--default {
  display: block;
}
.page-products .range-panels:has(.range-panel:target) .range-panel--default {
  display: none;
}
.page-products .range-panel:target {
  display: block;
}

/* ---------- 内联走势图 ---------- */
.page-products .trend-explain {
  margin-top: clamp(28px, 4vw, 40px);
  padding: var(--pp-pad);
  background: var(--void-2);
  border: 1px solid var(--line);
}
.page-products .trend-chart {
  display: block;
  width: 100%;
  height: auto;
}
.page-products .tc-grid line {
  stroke: var(--line);
  stroke-width: 1;
  stroke-dasharray: 3 6;
}
.page-products .tc-bars rect {
  fill: rgba(242, 193, 78, 0.42);
  stroke: rgba(242, 193, 78, 0.85);
  stroke-width: 1;
}
.page-products .tc-line {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.4;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.page-products .tc-dots circle {
  fill: var(--green);
  stroke: var(--void);
  stroke-width: 1.5;
}
.page-products .trend-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}
.page-products .trend-legend li {
  display: flex;
  align-items: center;
  gap: 9px;
}
.page-products .legend-swatch {
  display: inline-block;
  width: 20px;
  height: 4px;
}
.page-products .legend-swatch--line {
  background: var(--cyan);
}
.page-products .legend-swatch--bar {
  background: rgba(242, 193, 78, 0.6);
  border: 1px solid var(--gold);
}
.page-products .legend-swatch--dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
}

/* ---------- 提醒卡片堆叠 ---------- */
.page-products .alert-stack {
  display: grid;
  gap: 14px;
  margin-bottom: 26px;
}
.page-products .alert-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 18px;
  padding: 16px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  box-shadow: var(--shadow-hard);
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.page-products .alert-card:nth-child(2) {
  transform: translateX(14px);
}
.page-products .alert-card:hover {
  border-color: var(--cyan);
  border-left-color: var(--gold);
  transform: translate(-2px, -4px);
}
.page-products .alert-card:nth-child(2):hover {
  transform: translate(12px, -4px);
}
.page-products .alert-card__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
  border: 1px solid rgba(242, 193, 78, 0.45);
  padding: 3px 8px;
}
.page-products .alert-card__body {
  flex: 1 1 140px;
  font-size: 15px;
  color: var(--ink);
}
.page-products .alert-card__time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 安装步骤 ---------- */
.page-products .install-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(150px, 1fr);
  gap: 12px;
  margin-top: clamp(30px, 4vw, 44px);
  padding-bottom: 8px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}
.page-products .install-rail::-webkit-scrollbar {
  height: 6px;
}
.page-products .install-rail::-webkit-scrollbar-thumb {
  background: var(--line);
}
.page-products .install-node {
  display: block;
  padding: 16px 16px 18px;
  background: var(--void-2);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.page-products .install-node__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}
.page-products .install-node__label {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}
.page-products .install-node:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-products .install-panels {
  margin-top: 24px;
}
.page-products .install-panel {
  display: none;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--cyan);
}
.page-products .install-panel--default {
  display: block;
}
.page-products .install-panels:has(.install-panel:target) .install-panel--default {
  display: none;
}
.page-products .install-panel:target {
  display: block;
}
.page-products .install-panel h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.page-products .install-panel p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 68ch;
}

/* ---------- 设备要求 ---------- */
.page-products .device-req {
  margin-top: clamp(30px, 4vw, 44px);
  padding: var(--pp-pad);
  background: var(--panel);
  border: 1px solid var(--line);
}
.page-products .device-req h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 19px;
}
.page-products .device-req dl {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 20px 0 0;
}
.page-products .device-req dl > div {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.page-products .device-req dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-products .device-req dd {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 同步与账号 ---------- */
.page-products .sync-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  margin-top: clamp(28px, 4vw, 42px);
}
.page-products .sync-card {
  padding: 22px 22px 24px;
  background: var(--void-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--line);
  transition: border-top-color 0.22s ease, transform 0.22s ease;
}
.page-products .sync-card:hover {
  border-top-color: var(--cyan);
  transform: translateY(-3px);
}
.page-products .sync-card h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 18px;
}
.page-products .sync-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 常见问题折叠 ---------- */
.page-products .faq-list {
  display: grid;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 42px);
}
.page-products .faq-item {
  background: var(--void-2);
  border: 1px solid var(--line);
  padding: 0 20px;
  transition: border-color 0.2s ease;
}
.page-products .faq-item[open] {
  border-color: rgba(37, 214, 232, 0.55);
}
.page-products .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.page-products .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-products .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}
.page-products .faq-item[open] summary::after {
  content: "–";
}
.page-products .faq-item p {
  margin: 0 0 20px;
  padding-right: 20px;
  max-width: 76ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 结尾行动区 ---------- */
.page-products .tools-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  margin-top: clamp(32px, 4.4vw, 52px);
  padding: var(--pp-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  box-shadow: var(--shadow-hard);
}
.page-products .tools-cta h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 24px);
}
.page-products .tools-cta p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}
.page-products .tools-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ============================================================
   断点
   ============================================================ */

@media (min-width: 700px) {
  .page-products .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .device-req dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 clamp(24px, 3vw, 40px);
  }
}

@media (min-width: 900px) {
  .page-products .tool-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .sync-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .tools-cta {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 960px) {
  .page-products .split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
  .page-products .split--reverse {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }
  .page-products .split--reverse .split__main {
    order: 2;
  }
  .page-products .split--reverse .split__aside {
    order: 1;
  }
  .page-products .install-rail {
    grid-auto-columns: minmax(0, 1fr);
    overflow-x: visible;
  }
}

@media (max-width: 520px) {
  .page-products .alert-card:nth-child(2) {
    transform: none;
  }
  .page-products .alert-card:nth-child(2):hover {
    transform: translate(-2px, -4px);
  }
  .page-products .faq-item p {
    padding-right: 0;
  }
  .page-products .range-chip {
    font-size: 11px;
  }
}

/* ============================================================
   动效降级
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .page-products .speed-fill {
    animation: none;
    transform: none;
  }
  .page-products .tool-card,
  .page-products .install-node,
  .page-products .sync-card,
  .page-products .alert-card {
    transition: none;
  }
  .page-products .tool-card:hover,
  .page-products .install-node:hover,
  .page-products .sync-card:hover,
  .page-products .alert-card:hover,
  .page-products .alert-card:nth-child(2):hover {
    transform: none;
  }
}
<<<END>>>