.page-products {
  --pp-rail: 300px;
  --pp-cut: 18px;
  --pp-gap: clamp(1.25rem, 3vw, 2.25rem);
  display: block;
  overflow-x: clip;
}

.page-products img {
  max-width: 100%;
  height: auto;
}

/* ========== 首屏 ========== */
.page-products .hero {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem) 0 clamp(2rem, 5vw, 3.5rem);
  overflow: hidden;
}

.page-products .hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -90px;
  width: min(48vw, 460px);
  height: min(48vw, 460px);
  background: repeating-linear-gradient(102deg, var(--violet-12) 0 2px, transparent 2px 24px);
  transform: rotate(12deg);
  pointer-events: none;
}

.page-products .hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(40vw, 320px);
  height: 3px;
  background: linear-gradient(90deg, var(--c-violet), transparent);
}

.page-products .hero .shell {
  position: relative;
  z-index: 1;
}

.page-products .hero__title {
  font-family: var(--font-display);
  font-size: var(--step-6);
  line-height: 1.1;
  letter-spacing: -.015em;
  margin: .75rem 0 1.1rem;
  max-width: 20ch;
  color: var(--c-white);
}

.page-products .hero__title .hl {
  color: var(--c-amber);
}

.page-products .hero .lede {
  max-width: 58ch;
  color: var(--text-soft);
  font-size: var(--step-3);
  line-height: 1.8;
}

.page-products .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

.page-products .facts {
  list-style: none;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--pp-cut)) 0, 100% var(--pp-cut), 100% 100%, 0 100%);
}

.page-products .facts li {
  background: var(--c-bg);
  padding: clamp(.9rem, 2.2vw, 1.4rem);
  display: grid;
  gap: .3rem;
  align-content: start;
}

.page-products .facts b {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 1rem + 1.6vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--c-white);
}

.page-products .facts span {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--c-grey);
}

@media (min-width: 720px) {
  .page-products .facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ========== 订阅档位 ========== */
.page-products .plans__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .tier {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  padding: clamp(1.25rem, 2.8vw, 1.8rem);
  background: var(--c-surface);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--pp-cut)) 0, 100% var(--pp-cut), 100% 100%, 0 100%);
  transition: transform .35s var(--ease), border-color .35s var(--ease);
}

.page-products .tier::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--violet-55);
}

.page-products .tier:hover {
  transform: translateY(-4px);
  border-color: var(--violet-55);
}

.page-products .tier--feature {
  background: linear-gradient(180deg, var(--violet-12), transparent 46%), var(--c-surface);
  border-color: var(--violet-30);
}

.page-products .tier--feature::before {
  background: var(--c-amber);
}

.page-products .tier__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .18em;
  color: var(--c-grey);
}

.page-products .tier__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-4);
  line-height: 1.2;
  color: var(--c-white);
}

.page-products .tier__fit {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.7;
  color: var(--c-grey);
}

.page-products .tier__list {
  list-style: none;
  margin: .4rem 0 1rem;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-products .tier__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: var(--step-2);
  line-height: 1.65;
  color: var(--text-soft);
}

.page-products .tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: .5rem;
  height: .5rem;
  border-left: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
  transform: rotate(-45deg);
}

.page-products .tier__cta {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .06em;
  color: var(--c-amber);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-14);
  padding-bottom: .25rem;
  transition: border-color .3s var(--ease);
}

.page-products .tier__cta:hover {
  border-color: var(--c-amber);
}

@media (min-width: 880px) {
  .page-products .plans__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ========== 下载中心 ========== */
.page-products .section-lede {
  margin: 1rem 0 0;
  max-width: 60ch;
  font-size: var(--step-3);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .download {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .download .media-frame {
  margin: 0;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--pp-cut)) 0, 100% var(--pp-cut), 100% 100%, 0 100%);
}

.page-products .download .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .download__body {
  display: grid;
  gap: 1.25rem;
  align-content: start;
  min-width: 0;
}

.page-products .download__lede {
  margin: 0;
  max-width: 54ch;
  font-size: var(--step-3);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .specs li {
  background: var(--c-surface);
  padding: .85rem 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .5rem 1rem;
}

.page-products .specs__k {
  font-size: var(--step-1);
  color: var(--c-grey);
}

.page-products .specs__v {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  color: var(--c-cyan);
}

.page-products .filelist {
  border-top: 1px solid var(--line);
}

.page-products .filelist details {
  border-bottom: 1px solid var(--line);
}

.page-products .filelist summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 0;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .06em;
  color: var(--c-white);
}

.page-products .filelist summary::-webkit-details-marker {
  display: none;
}

.page-products .filelist summary::after {
  content: "+";
  margin-left: auto;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--c-amber);
}

.page-products .filelist details[open] summary::after {
  content: "–";
}

.page-products .filelist ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-products .filelist li {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding-bottom: .55rem;
  border-bottom: 1px dashed var(--line);
  font-size: var(--step-2);
  line-height: 1.6;
  color: var(--text-soft);
}

.page-products .filelist li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .filelist .fmt {
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  color: var(--c-cyan);
}

@media (min-width: 520px) {
  .page-products .specs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .download {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

/* ========== 版本号筛选工作台 ========== */
.page-products .workbench {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  align-items: start;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .workbench__rail {
  display: grid;
  gap: 1.15rem;
  align-content: start;
  padding: clamp(1rem, 2.4vw, 1.35rem);
  background: var(--c-surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--c-violet);
}

.page-products .rail__label {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .16em;
  color: var(--c-grey);
}

.page-products .workbench .tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-products .workbench .tab {
  flex: 1 1 auto;
  min-width: 4.25rem;
  padding: .6rem .5rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--c-grey);
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: .08em;
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-products .workbench .tab:hover {
  border-color: var(--c-violet);
  color: var(--c-white);
}

.page-products .workbench .tab[aria-selected="true"] {
  background: var(--c-violet);
  border-color: var(--c-violet);
  color: var(--c-white);
  box-shadow: 0 0 0 4px var(--violet-12);
}

.page-products .rail__chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.page-products .rail__chips li {
  padding: .35rem .6rem;
  border: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  color: var(--text-soft);
}

.page-products .rail__chips li::before {
  content: "+ ";
  color: var(--c-amber);
}

.page-products .rail__hint {
  margin: 0;
  font-size: var(--step-1);
  line-height: 1.75;
  color: var(--c-grey);
}

.page-products .workbench__results {
  display: grid;
  gap: 1.25rem;
  min-width: 0;
}

.page-products .result {
  padding: clamp(1.1rem, 2.4vw, 1.6rem);
  background: var(--c-surface);
  border-left: 3px solid var(--c-violet);
}

.page-products .result > p {
  margin: .7rem 0 0;
  max-width: 56ch;
  font-size: var(--step-2);
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .result__list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-products .result__list li {
  background: var(--c-bg);
  padding: .85rem 1rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: .75rem;
  align-items: baseline;
  font-size: var(--step-2);
  color: var(--c-white);
}

.page-products .result__list .code {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .06em;
  color: var(--c-violet);
}

.page-products .result__list .rname {
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-products .result__list .rdate {
  font-size: var(--step-1);
  white-space: nowrap;
  color: var(--c-grey);
}

.page-products .filter-figure {
  margin: 0;
  background: var(--c-bg);
  border: 1px solid var(--line);
}

.page-products .filter-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .filter-figure figcaption {
  padding: .7rem 1rem;
  border-top: 1px solid var(--line);
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--c-grey);
}

@media (max-width: 519px) {
  .page-products .result__list li {
    grid-template-columns: 1fr;
    gap: .25rem;
  }
}

@media (min-width: 900px) {
  .page-products .workbench {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 3rem);
  }

  .page-products .workbench__rail {
    position: sticky;
    top: calc(var(--topbar-h) + 1.25rem);
  }
}

/* ========== 新旧能力对照 ========== */
.page-products .compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .compare__col {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.page-products .compare__col h3 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: var(--step-4);
  line-height: 1.25;
}

.page-products .compare__col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-products .compare__col li {
  position: relative;
  padding-left: 1.5rem;
  font-size: var(--step-2);
  line-height: 1.75;
}

.page-products .compare__col li::before {
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  line-height: 1.75;
}

.page-products .compare__col--old {
  background: var(--c-surface);
  color: var(--c-grey);
}

.page-products .compare__col--old h3 {
  color: var(--c-grey);
}

.page-products .compare__col--old li::before {
  content: "—";
  color: var(--c-grey);
}

.page-products .compare__col--new {
  background: var(--c-violet);
  color: var(--c-white);
}

.page-products .compare__col--new h3 {
  color: var(--c-white);
}

.page-products .compare__col--new li::before {
  content: "›";
  color: var(--c-amber);
}

.page-products .compare__figure {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
}

.page-products .compare__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .compare__tail {
  margin: 1.25rem 0 0;
  font-size: var(--step-2);
  line-height: 1.75;
  color: var(--c-grey);
}

.page-products .compare__tail a {
  color: var(--c-amber);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-14);
}

.page-products .compare__tail a:hover {
  border-color: var(--c-amber);
}

@media (min-width: 860px) {
  .page-products .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ========== 9 类资料 ========== */
.page-products .catlist {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
}

.page-products .catlist li {
  background: var(--c-bg);
  padding: clamp(1rem, 2.4vw, 1.5rem);
  display: grid;
  gap: .45rem;
  align-content: start;
  transition: background .3s var(--ease);
}

.page-products .catlist li:hover {
  background: var(--c-surface);
}

.page-products .catlist .num {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .2em;
  color: var(--c-violet);
}

.page-products .catlist h3 {
  margin: 0;
  font-size: var(--step-3);
  font-weight: 800;
  line-height: 1.35;
  color: var(--c-white);
}

.page-products .catlist p {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.72;
  color: var(--text-soft);
}

.page-products .catlist .when {
  font-size: var(--step-1);
  color: var(--c-grey);
}

.page-products .cat-figure {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
}

.page-products .cat-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 720px) {
  .page-products .catlist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-products .catlist {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ========== 周期与开通 ========== */
.page-products .cycle {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  align-items: start;
}

.page-products .cycle__text h2 {
  margin: .6rem 0 1rem;
  font-family: var(--font-display);
  font-size: var(--step-5);
  line-height: 1.2;
  max-width: 20ch;
  color: var(--c-white);
}

.page-products .cycle__text > p {
  margin: 0 0 1.4rem;
  max-width: 56ch;
  font-size: var(--step-3);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .cycle__points {
  list-style: none;
  margin: 0 0 1.6rem;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-products .cycle__points li {
  position: relative;
  padding-left: 1.5rem;
  font-size: var(--step-2);
  line-height: 1.72;
  color: var(--text-soft);
}

.page-products .cycle__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .55rem;
  height: .55rem;
  background: var(--c-cyan);
  transform: rotate(12deg);
}

.page-products .cycle__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-products .cycle__figure {
  margin: 0;
}

.page-products .cycle__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .ticks {
  list-style: none;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(14, minmax(0, 1fr));
  gap: 3px;
}

.page-products .ticks li {
  height: 8px;
  background: var(--c-surface);
  box-shadow: inset 0 0 0 1px var(--line);
}

.page-products .ticks li:nth-child(-n+9) {
  background: var(--c-violet);
  box-shadow: none;
}

.page-products .ticks__scale {
  display: flex;
  justify-content: space-between;
  margin-top: .55rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  color: var(--c-grey);
}

@media (min-width: 900px) {
  .page-products .cycle {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
  }
}