/* ===== 工具中心 /tools/ 页面专属样式 ===== */
.page-products{
  --tb-gap: clamp(12px, 1.8vw, 18px);
  --tb-panel: rgba(20, 58, 102, 0.72);
  --tb-panel-deep: rgba(11, 37, 69, 0.62);
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero{
  position: relative;
  padding-block: clamp(14px, 2.4vw, 24px) clamp(36px, 6vw, 76px);
  overflow: hidden;
}
.page-products .tools-hero::before{
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 150%;
  background:
    radial-gradient(closest-side at 78% 10%, rgba(41, 224, 210, 0.16), transparent 68%),
    radial-gradient(closest-side at 8% 74%, rgba(255, 122, 47, 0.11), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.page-products .tools-hero > .shell{
  position: relative;
  z-index: 1;
}
.page-products .breadcrumb{
  font-size: 0.86rem;
  letter-spacing: 0.02em;
}
.page-products .breadcrumb a{
  color: var(--mist);
  text-decoration: none;
}
.page-products .breadcrumb a:hover{
  color: var(--cyan);
}
.page-products .breadcrumb [aria-current="page"]{
  color: var(--white);
}

.page-products .tools-hero__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 34px);
}
.page-products .tools-hero__title{
  margin: 14px 0 0;
  max-width: 16ch;
}
.page-products .tools-hero__lede{
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 36em;
}
.page-products .tools-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}
.page-products .tools-hero__facts{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(16px, 3vw, 34px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: clamp(14px, 2vw, 20px) 0 0;
  border-top: 1px solid var(--line);
}
.page-products .tools-hero__facts li{
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--mist);
  font-size: 0.92rem;
}
.page-products .tools-hero__facts .num{
  font-family: var(--font-ui);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-products .tools-hero__visual{
  position: relative;
  margin: 0;
  aspect-ratio: 8 / 5;
  background: linear-gradient(155deg, var(--navy), var(--abyss) 78%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));
  overflow: hidden;
}
.page-products .tools-hero__visual img{
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.92;
}
.page-products .tools-hero__visual::after{
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(41, 224, 210, 0.08) 0 2px, transparent 2px 16px);
  pointer-events: none;
}

/* ---------- 章节基础 ---------- */
.page-products .tools-block{
  position: relative;
}
.page-products .tools-block + .tools-block{
  border-top: 1px solid var(--line);
}
.page-products .tools-block--alt{
  background: linear-gradient(180deg, rgba(20, 58, 102, 0.34), rgba(11, 37, 69, 0) 82%);
}
.page-products .chapter__num{
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--orange);
  line-height: 0.9;
}
.page-products .chapter__body .lede{
  margin-top: 14px;
  max-width: 38em;
}

.page-products .inline-note{
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.75;
}
.page-products .inline-note a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 224, 210, 0.4);
}
.page-products .inline-note a:hover{
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 工具总览仪表板 ---------- */
.page-products .tools-board{
  list-style: none;
  margin: clamp(24px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--tb-gap);
}
.page-products .tool-card{
  grid-column: span 12;
  position: relative;
  padding: 22px 20px 20px;
  background: linear-gradient(180deg, var(--tb-panel), var(--tb-panel-deep));
  border: 1px solid var(--line);
  border-top-color: rgba(41, 224, 210, 0.3);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}
.page-products .tool-card:hover{
  transform: translateY(-3px);
  border-color: rgba(41, 224, 210, 0.5);
}
.page-products .tool-card::after{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), rgba(41, 224, 210, 0));
  opacity: 0;
  transition: opacity 0.24s var(--ease);
  pointer-events: none;
}
.page-products .tool-card:hover::after{
  opacity: 1;
}
.page-products .tool-card__num{
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
  background: rgba(255, 122, 47, 0.12);
  border: 1px solid rgba(255, 122, 47, 0.34);
  padding: 2px 9px;
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 0 100%);
}
.page-products .tool-card__name{
  margin: 12px 0 8px;
  font-size: 1.05rem;
}
.page-products .tool-card__use{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.72;
}

/* ---------- 登录助手 ---------- */
.page-products .helper-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-products .steps__item{
  position: relative;
}
.page-products .steps__idx{
  display: block;
  font-family: var(--font-ui);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  opacity: 0.85;
  margin-bottom: 10px;
}
.page-products .steps__item .h3{
  margin: 0 0 8px;
}
.page-products .steps__item p{
  margin: 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}
.page-products .helper-figure{
  margin: 0;
}

.page-products .pitfall{
  margin-top: clamp(26px, 4vw, 42px);
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(120deg, rgba(20, 58, 102, 0.86), rgba(11, 37, 69, 0.7));
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}
.page-products .pitfall__title{
  margin: 0 0 14px;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}
.page-products .pitfall__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pitfall__list li{
  position: relative;
  padding-left: 18px;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}
.page-products .pitfall__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.page-products .pitfall__list strong{
  color: var(--white);
  font-weight: 600;
}
.page-products .pitfall__foot{
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.75;
}
.page-products .pitfall__foot a{
  color: var(--cyan);
  text-decoration: none;
}

/* ---------- 连通性自检 ---------- */
.page-products .probe-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(22px, 3vw, 36px);
  align-items: center;
}
.page-products .probe-visual{
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
  background: radial-gradient(closest-side at 50% 45%, rgba(41, 224, 210, 0.12), transparent 72%), var(--tb-panel-deep);
  border: 1px solid var(--line);
  clip-path: polygon(var(--cut-lg) 0, 100% 0, 100% calc(100% - var(--cut-lg)), calc(100% - var(--cut-lg)) 100%, 0 100%, 0 var(--cut-lg));
}
.page-products .probe{
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
}
.page-products .probe__ring{
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 60px 60px;
}
.page-products .probe__ring--link{
  stroke: var(--cyan);
  stroke-dasharray: 314 314;
  stroke-dashoffset: 26;
}
.page-products .probe__ring--dns{
  stroke: var(--cyan-soft);
  stroke-dasharray: 251 251;
  stroke-dashoffset: 40;
}
.page-products .probe__ring--res{
  stroke: var(--orange);
  stroke-dasharray: 188 188;
  stroke-dashoffset: 56;
}
.page-products .probe__legend{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.page-products .probe__legend li{
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.page-products .probe__dot{
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.page-products .probe__dot--link{ background: var(--cyan); }
.page-products .probe__dot--dns{ background: var(--cyan-soft); }
.page-products .probe__dot--res{ background: var(--orange); }

.page-products .checklist{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-products .checklist--tight{
  gap: 16px;
}
.page-products .checklist__item{
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--line);
}
.page-products .checklist__item .h3{
  margin: 0 0 6px;
  font-size: 1.02rem;
}
.page-products .checklist__item p{
  margin: 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}
.page-products .result-note{
  margin-top: clamp(18px, 2.4vw, 26px);
  padding: 16px 18px;
  background: rgba(41, 224, 210, 0.07);
  border: 1px dashed rgba(41, 224, 210, 0.34);
}
.page-products .result-note p{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.78;
}
.page-products .result-note strong{
  color: var(--cyan);
  font-weight: 600;
}
.page-products .result-note .num{
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--white);
}

/* ---------- 快捷面板 ---------- */
.page-products .panel-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tb-gap);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .feature-card{
  padding: clamp(20px, 2.8vw, 28px);
  background: linear-gradient(170deg, var(--tb-panel), var(--tb-panel-deep));
  border: 1px solid var(--line);
  border-bottom: 2px solid rgba(41, 224, 210, 0.36);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}
.page-products .feature-card .h3{
  margin: 14px 0 10px;
}
.page-products .feature-card p{
  margin: 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.78;
}
.page-products .panel-figure{
  margin: clamp(20px, 3vw, 32px) 0 0;
}

/* ---------- 账户与权益 ---------- */
.page-products .account-strip{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tb-gap);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .account-node{
  position: relative;
  padding: 24px 20px 22px;
  background: var(--tb-panel-deep);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
}
.page-products .account-node:nth-child(2){
  border-top-color: var(--cyan-soft);
}
.page-products .account-node:nth-child(3){
  border-top-color: var(--orange);
}
.page-products .account-node__step{
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
}
.page-products .account-node .h3{
  margin: 10px 0 8px;
  font-size: 1.04rem;
}
.page-products .account-node p{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.75;
}

/* ---------- 兼容性检测 ---------- */
.page-products .compat-tabs{
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .compat-tabs .tabs__list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 24px);
}
.page-products .compat-tabs .tabs__tab{
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist);
  background: rgba(20, 58, 102, 0.55);
  border: 1px solid var(--line);
  padding: 10px 18px;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-products .compat-tabs .tabs__tab:hover{
  color: var(--white);
  border-color: rgba(41, 224, 210, 0.5);
}
.page-products .compat-tabs .tabs__tab[aria-selected="true"]{
  color: var(--abyss);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-products .compat-tabs .tabs__panel{
  animation: tb-fade 0.2s var(--ease);
}
@keyframes tb-fade{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: none; }
}

.page-products .compat-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .compat-item{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  padding: 14px 16px;
  background: rgba(11, 37, 69, 0.58);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}
.page-products .compat-item--caution{
  border-left-color: var(--orange);
}
.page-products .compat-item__name{
  font-family: var(--font-ui);
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--white);
}
.page-products .compat-item__note{
  grid-column: 2;
  margin: 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 订阅与提醒 ---------- */
.page-products .subscribe-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(22px, 3vw, 36px);
  align-items: center;
}
.page-products .subscribe-figure{
  margin: 0;
}

/* ---------- 更新记录 ---------- */
.page-products .log{
  list-style: none;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--line);
}
.page-products .log__item{
  position: relative;
  padding-bottom: clamp(20px, 2.6vw, 28px);
}
.page-products .log__item:last-child{
  padding-bottom: 0;
}
.page-products .log__item::before{
  content: "";
  position: absolute;
  left: -25px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.page-products .log__item:nth-child(3)::before{
  background: var(--cyan-soft);
}
.page-products .log__item:nth-child(4)::before{
  background: var(--orange);
}
.page-products .log__time{
  display: block;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 6px;
}
.page-products .log__item .h3{
  margin: 0 0 6px;
  font-size: 1.03rem;
}
.page-products .log__item p{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.75;
  max-width: 58ch;
}

/* ---------- 下一步 ---------- */
.page-products .next-links{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tb-gap);
  margin-top: clamp(22px, 3vw, 34px);
}
.page-products .next-link{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--white);
  background: rgba(20, 58, 102, 0.6);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), border-left-color 0.2s var(--ease);
}
.page-products .next-link:hover{
  background: rgba(20, 58, 102, 0.95);
  border-left-color: var(--orange);
  transform: translateX(3px);
}
.page-products .next-link strong{
  display: block;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.page-products .next-link em{
  display: block;
  margin-top: 5px;
  font-style: normal;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--mist);
}
.page-products .next-link > span:last-child{
  flex: none;
  font-size: 1.1rem;
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px){
  .page-products .tool-card{
    grid-column: span 6;
  }
  .page-products .panel-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .account-strip{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .next-links{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px){
  .page-products .steps{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }
  .page-products .steps__item{
    padding-right: clamp(18px, 2.4vw, 32px);
  }
  .page-products .steps__item + .steps__item{
    padding-left: clamp(18px, 2.4vw, 32px);
  }
  .page-products .steps__item::before{
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 12px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan), rgba(41, 224, 210, 0));
    transform: rotate(18deg);
    transform-origin: top center;
  }
  .page-products .steps__item:first-child::before{
    display: none;
  }
}

@media (min-width: 900px){
  .page-products .probe-grid{
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }
  .page-products .subscribe-grid{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 960px){
  .page-products .tools-hero__grid{
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }
  .page-products .helper-grid{
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }
}

@media (min-width: 1040px){
  .page-products .tool-card{
    grid-column: span 4;
  }
}

@media (max-width: 619px){
  .page-products .steps__idx{
    font-size: 30px;
  }
  .page-products .compat-tabs .tabs__tab{
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-products .tool-card,
  .page-products .next-link,
  .page-products .compat-tabs .tabs__tab{
    transition: none;
  }
  .page-products .tool-card:hover{
    transform: none;
  }
  .page-products .next-link:hover{
    transform: none;
  }
  .page-products .compat-tabs .tabs__panel{
    animation: none;
  }
}
</main>

/* 说明：本文件为 /tools/ 页面的页面级样式，全部选择器限定在 .page-products 作用域内。 */
.page-products{
  --tb-gap: clamp(12px, 1.8vw, 18px);
  --tb-panel: rgba(20, 58, 102, 0.72);
  --tb-panel-deep: rgba(11, 37, 69, 0.62);
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero{
  position: relative;
  padding-block: clamp(14px, 2.4vw, 24px) clamp(36px, 6vw, 76px);
  overflow: hidden;
}
.page-products .tools-hero::before{
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 150%;
  background:
    radial-gradient(closest-side at 78% 10%, rgba(41, 224, 210, 0.16), transparent 68%),
    radial-gradient(closest-side at 8% 74%, rgba(255, 122, 47, 0.11), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.page-products .tools-hero > .shell{
  position: relative;
  z-index: 1;
}
.page-products .breadcrumb{
  font-size: 0.86rem;
  letter-spacing: 0.02em;
}
.page-products .breadcrumb a{
  color: var(--mist);
  text-decoration: none;
}
.page-products .breadcrumb a:hover{
  color: var(--cyan);
}
.page-products .breadcrumb [aria-current="page"]{
  color: var(--white);
}

.page-products .tools-hero__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 34px);
}
.page-products .tools-hero__title{
  margin: 14px 0 0;
  max-width: 16ch;
}
.page-products .tools-hero__lede{
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 36em;
}
.page-products .tools-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}
.page-products .tools-hero__facts{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(16px, 3vw, 34px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: clamp(14px, 2vw, 20px) 0 0;
  border-top: 1px solid var(--line);
}
.page-products .tools-hero__facts li{
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--mist);
  font-size: 0.92rem;
}
.page-products .tools-hero__facts .num{
  font-family: var(--font-ui);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-products .tools-hero__visual{
  position: relative;
  margin: 0;
  aspect-ratio: 8 / 5;
  background: linear-gradient(155deg, var(--navy), var(--abyss) 78%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));
  overflow: hidden;
}
.page-products .tools-hero__visual img{
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.92;
}
.page-products .tools-hero__visual::after{
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(41, 224, 210, 0.08) 0 2px, transparent 2px 16px);
  pointer-events: none;
}

/* ---------- 章节基础 ---------- */
.page-products .tools-block{
  position: relative;
}
.page-products .tools-block + .tools-block{
  border-top: 1px solid var(--line);
}
.page-products .tools-block--alt{
  background: linear-gradient(180deg, rgba(20, 58, 102, 0.34), rgba(11, 37, 69, 0) 82%);
}
.page-products .chapter__num{
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--orange);
  line-height: 0.9;
}
.page-products .chapter__body .lede{
  margin-top: 14px;
  max-width: 38em;
}

.page-products .inline-note{
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.75;
}
.page-products .inline-note a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 224, 210, 0.4);
}
.page-products .inline-note a:hover{
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 工具总览仪表板 ---------- */
.page-products .tools-board{
  list-style: none;
  margin: clamp(24px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--tb-gap);
}
.page-products .tool-card{
  grid-column: span 12;
  position: relative;
  padding: 22px 20px 20px;
  background: linear-gradient(180deg, var(--tb-panel), var(--tb-panel-deep));
  border: 1px solid var(--line);
  border-top-color: rgba(41, 224, 210, 0.3);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}
.page-products .tool-card:hover{
  transform: translateY(-3px);
  border-color: rgba(41, 224, 210, 0.5);
}
.page-products .tool-card::after{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), rgba(41, 224, 210, 0));
  opacity: 0;
  transition: opacity 0.24s var(--ease);
  pointer-events: none;
}
.page-products .tool-card:hover::after{
  opacity: 1;
}
.page-products .tool-card__num{
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
  background: rgba(255, 122, 47, 0.12);
  border: 1px solid rgba(255, 122, 47, 0.34);
  padding: 2px 9px;
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 0 100%);
}
.page-products .tool-card__name{
  margin: 12px 0 8px;
  font-size: 1.05rem;
}
.page-products .tool-card__use{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.72;
}

/* ---------- 登录助手 ---------- */
.page-products .helper-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-products .steps__item{
  position: relative;
}
.page-products .steps__idx{
  display: block;
  font-family: var(--font-ui);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  opacity: 0.85;
  margin-bottom: 10px;
}
.page-products .steps__item .h3{
  margin: 0 0 8px;
}
.page-products .steps__item p{
  margin: 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}
.page-products .helper-figure{
  margin: 0;
}

.page-products .pitfall{
  margin-top: clamp(26px, 4vw, 42px);
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(120deg, rgba(20, 58, 102, 0.86), rgba(11, 37, 69, 0.7));
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}
.page-products .pitfall__title{
  margin: 0 0 14px;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}
.page-products .pitfall__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pitfall__list li{
  position: relative;
  padding-left: 18px;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}
.page-products .pitfall__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.page-products .pitfall__list strong{
  color: var(--white);
  font-weight: 600;
}
.page-products .pitfall__foot{
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.75;
}
.page-products .pitfall__foot a{
  color: var(--cyan);
  text-decoration: none;
}

/* ---------- 连通性自检 ---------- */
.page-products .probe-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(22px, 3vw, 36px);
  align-items: center;
}
.page-products .probe-visual{
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
  background: radial-gradient(closest-side at 50% 45%, rgba(41, 224, 210, 0.12), transparent 72%), var(--tb-panel-deep);
  border: 1px solid var(--line);
  clip-path: polygon(var(--cut-lg) 0, 100% 0, 100% calc(100% - var(--cut-lg)), calc(100% - var(--cut-lg)) 100%, 0 100%, 0 var(--cut-lg));
}
.page-products .probe{
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
}
.page-products .probe__ring{
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 60px 60px;
}
.page-products .probe__ring--link{
  stroke: var(--cyan);
  stroke-dasharray: 314 314;
  stroke-dashoffset: 26;
}
.page-products .probe__ring--dns{
  stroke: var(--cyan-soft);
  stroke-dasharray: 251 251;
  stroke-dashoffset: 40;
}
.page-products .probe__ring--res{
  stroke: var(--orange);
  stroke-dasharray: 188 188;
  stroke-dashoffset: 56;
}
.page-products .probe__legend{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.page-products .probe__legend li{
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.page-products .probe__dot{
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.page-products .probe__dot--link{ background: var(--cyan); }
.page-products .probe__dot--dns{ background: var(--cyan-soft); }
.page-products .probe__dot--res{ background: var(--orange); }

.page-products .checklist{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-products .checklist--tight{
  gap: 16px;
}
.page-products .checklist__item{
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--line);
}
.page-products .checklist__item .h3{
  margin: 0 0 6px;
  font-size: 1.02rem;
}
.page-products .checklist__item p{
  margin: 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}
.page-products .result-note{
  margin-top: clamp(18px, 2.4vw, 26px);
  padding: 16px 18px;
  background: rgba(41, 224, 210, 0.07);
  border: 1px dashed rgba(41, 224, 210, 0.34);
}
.page-products .result-note p{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.78;
}
.page-products .result-note strong{
  color: var(--cyan);
  font-weight: 600;
}
.page-products .result-note .num{
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--white);
}

/* ---------- 快捷面板 ---------- */
.page-products .panel-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tb-gap);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .feature-card{
  padding: clamp(20px, 2.8vw, 28px);
  background: linear-gradient(170deg, var(--tb-panel), var(--tb-panel-deep));
  border: 1px solid var(--line);
  border-bottom: 2px solid rgba(41, 224, 210, 0.36);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}
.page-products .feature-card .h3{
  margin: 14px 0 10px;
}
.page-products .feature-card p{
  margin: 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.78;
}
.page-products .panel-figure{
  margin: clamp(20px, 3vw, 32px) 0 0;
}

/* ---------- 账户与权益 ---------- */
.page-products .account-strip{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tb-gap);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .account-node{
  position: relative;
  padding: 24px 20px 22px;
  background: var(--tb-panel-deep);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
}
.page-products .account-node:nth-child(2){
  border-top-color: var(--cyan-soft);
}
.page-products .account-node:nth-child(3){
  border-top-color: var(--orange);
}
.page-products .account-node__step{
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
}
.page-products .account-node .h3{
  margin: 10px 0 8px;
  font-size: 1.04rem;
}
.page-products .account-node p{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.75;
}

/* ---------- 兼容性检测 ---------- */
.page-products .compat-tabs{
  margin-top: clamp(22px, 3vw, 36px);
}
.page-products .compat-tabs .tabs__list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 24px);
}
.page-products .compat-tabs .tabs__tab{
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist);
  background: rgba(20, 58, 102, 0.55);
  border: 1px solid var(--line);
  padding: 10px 18px;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-products .compat-tabs .tabs__tab:hover{
  color: var(--white);
  border-color: rgba(41, 224, 210, 0.5);
}
.page-products .compat-tabs .tabs__tab[aria-selected="true"]{
  color: var(--abyss);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-products .compat-tabs .tabs__panel{
  animation: page-products-fade 0.2s var(--ease);
}
@keyframes page-products-fade{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: none; }
}

.page-products .compat-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .compat-item{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  padding: 14px 16px;
  background: rgba(11, 37, 69, 0.58);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}
.page-products .compat-item--caution{
  border-left-color: var(--orange);
}
.page-products .compat-item__name{
  font-family: var(--font-ui);
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--white);
}
.page-products .compat-item__note{
  grid-column: 2;
  margin: 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 订阅与提醒 ---------- */
.page-products .subscribe-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(22px, 3vw, 36px);
  align-items: center;
}
.page-products .subscribe-figure{
  margin: 0;
}

/* ---------- 更新记录 ---------- */
.page-products .log{
  list-style: none;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--line);
}
.page-products .log__item{
  position: relative;
  padding-bottom: clamp(20px, 2.6vw, 28px);
}
.page-products .log__item:last-child{
  padding-bottom: 0;
}
.page-products .log__item::before{
  content: "";
  position: absolute;
  left: -25px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.page-products .log__item:nth-child(3)::before{
  background: var(--cyan-soft);
}
.page-products .log__item:nth-child(4)::before{
  background: var(--orange);
}
.page-products .log__time{
  display: block;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 6px;
}
.page-products .log__item .h3{
  margin: 0 0 6px;
  font-size: 1.03rem;
}
.page-products .log__item p{
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.75;
  max-width: 58ch;
}

/* ---------- 下一步 ---------- */
.page-products .next-links{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tb-gap);
  margin-top: clamp(22px, 3vw, 34px);
}
.page-products .next-link{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--white);
  background: rgba(20, 58, 102, 0.6);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), border-left-color 0.2s var(--ease);
}
.page-products .next-link:hover{
  background: rgba(20, 58, 102, 0.95);
  border-left-color: var(--orange);
  transform: translateX(3px);
}
.page-products .next-link strong{
  display: block;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.page-products .next-link em{
  display: block;
  margin-top: 5px;
  font-style: normal;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--mist);
}
.page-products .next-link > span:last-child{
  flex: none;
  font-size: 1.1rem;
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px){
  .page-products .tool-card{
    grid-column: span 6;
  }
  .page-products .panel-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .account-strip{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .next-links{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px){
  .page-products .steps{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }
  .page-products .steps__item{
    padding-right: clamp(18px, 2.4vw, 32px);
  }
  .page-products .steps__item + .steps__item{
    padding-left: clamp(18px, 2.4vw, 32px);
  }
  .page-products .steps__item::before{
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 12px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan), rgba(41, 224, 210, 0));
    transform: rotate(18deg);
    transform-origin: top center;
  }
  .page-products .steps__item:first-child::before{
    display: none;
  }
}

@media (min-width: 900px){
  .page-products .probe-grid{
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }
  .page-products .subscribe-grid{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 960px){
  .page-products .tools-hero__grid{
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }
  .page-products .helper-grid{
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }
}

@media (min-width: 1040px){
  .page-products .tool-card{
    grid-column: span 4;
  }
}

@media (max-width: 619px){
  .page-products .steps__idx{
    font-size: 30px;
  }
  .page-products .compat-tabs .tabs__tab{
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-products .tool-card,
  .page-products .next-link,
  .page-products .compat-tabs .tabs__tab{
    transition: none;
  }
  .page-products .tool-card:hover,
  .page-products .next-link:hover{
    transform: none;
  }
  .page-products .compat-tabs .tabs__panel{
    animation: none;
  }
}