:root {
    --blue: #2468d8;
    --dark: #253248;
    --muted: #7c8798;
    --border: #e3e7ee;
    --bg: #f6f7f9;
    --soft: #f0f5fd
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    font: 14px/1.7 "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    color: var(--dark);
    background: #fff
}

a {
    color: inherit;
    text-decoration: none
}

a:hover {
    color: var(--blue)
}

button,
input {
    font: inherit
}

button {
    cursor: pointer
}

button:disabled {
    opacity: .5;
    cursor: not-allowed
}

svg {
    flex-shrink: 0;
    vertical-align: middle
}

h1,
h2,
h3,
p {
    margin: 0
}

h1,
h2,
h3 {
    font-weight: 600
}

button,
a,
input,
label[role=button] {
    -webkit-tap-highlight-color: transparent
}

:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 4px
}

[hidden] {
    display: none !important
}

.shell {
    width: min(1180px, calc(100% - 64px));
    margin: 0 auto
}

.site-header {
    height: 76px;
    border-bottom: 1px solid var(--border);
    background: #fff;
    position: relative;
    z-index: 20
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    gap: 30px
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 600;
    white-space: nowrap;
    color: #263c5a
}

.brand-icon {
    display: grid;
    place-items: center;
    width: 36px;
    height: 40px;
    background: var(--blue);
    border-radius: 5px;
    color: #fff
}

.brand small {
    font-size: 11px;
    color: #8c95a3;
    font-weight: 400;
    border-left: 1px solid #dce1e8;
    margin-left: 5px;
    padding-left: 14px;
    letter-spacing: .3px
}

.nav {
    display: flex;
    align-items: center;
    gap: 31px;
    margin-left: auto;
    height: 100%
}

.nav>a {
    font-size: 14px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    height: 100%;
    position: relative;
    color: #526073
}

.nav>a:hover,
.nav>a.active {
    color: var(--blue)
}

.nav>a.active:after {
    content: "";
    height: 2px;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--blue)
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    border: 1px solid transparent;
    border-radius: 5px;
    padding: 10px 22px;
    line-height: 1.5;
    font-size: 14px;
    font-weight: 400;
    background: #fff
}

.btn-brand {
    background: var(--blue);
    color: #fff
}

.btn-brand:hover {
    background: #1b58bd;
    color: #fff
}

.btn-light {
    background: #fff;
    border-color: var(--border);
    color: #586478
}

.btn-light:hover {
    border-color: #b6c3d7
}

.btn-wechat {
    background: #16a05a;
    color: #fff
}

.btn-wechat:hover {
    background: #11864a;
    color: #fff
}

.btn.full {
    width: 100%
}

.login-link {
    padding: 8px 16px
}

.account-link {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--blue);
    white-space: nowrap
}

.mobile-menu {
    display: none;
    border: 0;
    background: none;
    font-size: 24px;
    color: #4d5d73;
    padding: 4px
}

.tool-section {
    background: var(--bg);
    padding: 42px 0 22px;
    border-bottom: 1px solid #edf0f4
}

.tool-heading {
    text-align: center;
    margin-bottom: 30px
}

.tool-heading h1 {
    font-size: 31px;
    letter-spacing: 2px;
    color: #24364f;
    margin-bottom: 9px
}

.tool-heading p {
    color: #7b8594;
    font-size: 14px
}

.compare-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 286px;
    gap: 20px;
    align-items: stretch
}

.files-panel,
.settings-panel {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 7px
}

.files-panel {
    padding: 23px 26px 18px;
    min-width: 0
}

.panel-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 24px
}

.panel-title h2 {
    font-size: 16px
}

.panel-title>span {
    font-size: 12px;
    color: #929baa
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px
}

.file-slot {
    position: relative;
    min-width: 0
}

.file-slot-heading {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px
}

.file-slot-heading h3 {
    font-size: 14px
}

.slot-number {
    display: grid;
    place-items: center;
    font: 12px Arial;
    width: 21px;
    height: 21px;
    background: #edf3fc;
    color: var(--blue);
    border-radius: 3px
}

.file-slot-heading>span:last-child {
    font-size: 11px;
    color: #9aa3af;
    margin-left: auto
}

.upload-zone {
    min-height: 260px;
    border: 1px dashed #c6d1df;
    border-radius: 5px;
    background: #fcfdff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 26px 14px 22px;
    cursor: pointer;
    min-width: 0
}

.upload-zone:hover,
.upload-zone.dragging {
    border-color: var(--blue);
    background: #f3f7ff
}

.upload-icon {
    display: block;
    color: #7e9cc7;
    margin-bottom: 18px
}

.upload-zone strong {
    font-size: 14px;
    font-weight: 400;
    max-width: 100%;
    overflow-wrap: anywhere;
    text-align: center
}

.zone-tip {
    font-size: 12px;
    color: #929baa;
    margin: 5px 0 17px;
    text-align: center
}

.file-select {
    font-size: 13px;
    color: var(--blue);
    border: 1px solid #b9cdec;
    border-radius: 4px;
    padding: 5px 22px;
    background: #fff
}

.file-format {
    font-size: 11px;
    color: #64748b;
    line-height: 1.8;
    text-align: center;
    overflow-wrap: anywhere;
    margin-top: 18px
}

.upload-zone.has-file {
    background: #f5f9ff;
    border-color: #82a9df
}

.has-file .upload-icon {
    color: var(--blue)
}

.remove-file {
    border: 0;
    background: #fff;
    color: #7b8798;
    font-size: 12px;
    padding: 2px 6px;
    position: absolute;
    right: 0;
    bottom: -28px
}

.remove-file:hover {
    color: #d35454
}

.file-notice {
    display: flex;
    gap: 7px;
    align-items: flex-start;
    margin-top: 33px;
    color: #929baa;
    font-size: 11px
}

.file-notice svg {
    margin-top: 2px;
    color: #899aaf
}

.file-notice a {
    color: #6385b5
}

.settings-panel {
    padding: 23px 22px 17px
}

.settings-panel .panel-title {
    margin-bottom: 20px
}

.text-button {
    border: 0;
    padding: 0;
    color: #8b96a6;
    background: none;
    font-size: 12px
}

.text-button:hover {
    color: var(--blue)
}

.setting-group {
    margin: 0 0 19px;
    padding: 0;
    border: 0;
    min-width: 0
}

.setting-label,
.setting-group legend {
    font-size: 12px;
    margin-bottom: 8px;
    width: 100%;
    padding: 0;
    color: #536075
}

.fixed-option {
    display: flex;
    gap: 8px;
    align-items: center;
    border: 1px solid #dbe5f4;
    color: var(--blue);
    background: #f5f8fd;
    border-radius: 4px;
    padding: 8px 10px;
    font-size: 12px
}

.fixed-option span {
    margin-left: auto;
    font-size: 11px;
    color: #99a7bb
}

.setting-group legend small {
    float: right;
    font-size: 11px;
    color: #a1a9b5;
    font-weight: 400
}

.compare-opts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 6px;
    padding-top: 4px
}

.compare-opts label {
    font-size: 12px;
    color: #5e6b7d;
    display: flex;
    align-items: center;
    gap: 7px;
    white-space: nowrap;
    cursor: pointer
}

.compare-opts input {
    margin: 0;
    width: 14px;
    height: 14px;
    accent-color: var(--blue)
}

.billing-note {
    padding-top: 15px;
    border-top: 1px solid #edf0f4;
    margin-bottom: 17px;
    font-size: 12px
}

.billing-note strong {
    font-weight: 400;
    color: #536075
}

.billing-note p {
    margin: 7px 0;
    color: #7f8a99;
    line-height: 1.9
}

.billing-note b {
    float: right;
    font-weight: 400;
    color: #536075
}

.billing-note small {
    font-size: 11px;
    line-height: 1.7;
    display: block;
    color: #9aa3b0
}

.compare-submit {
    width: 100%;
    font-size: 15px;
    padding: 11px
}

.login-note {
    font-size: 11px;
    color: #8f99a7;
    text-align: center;
    margin-top: 9px
}

.login-note b {
    font-weight: 400;
    color: var(--blue)
}

.login-note a {
    color: var(--blue)
}

.tool-bottom {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 11px;
    color: #929baa;
    margin-top: 17px
}

.tool-bottom a {
    display: flex;
    align-items: center;
    gap: 7px;
    color: #7085a2
}

.section-heading {
    text-align: center;
    margin-bottom: 36px
}

.section-heading h2 {
    font-size: 24px;
    margin-bottom: 9px;
    letter-spacing: .5px
}

.section-heading p {
    font-size: 13px;
    color: #8f98a5
}

.advantages {
    padding-top: 48px;
    padding-bottom: 48px
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0
}

.feature {
    padding: 4px 28px;
    border-right: 1px solid #edf0f4;
    text-align: left
}

.feature:first-child {
    padding-left: 0
}

.feature:last-child {
    border: 0;
    padding-right: 0
}

.feature-icon {
    display: block;
    color: #5279af;
    margin-bottom: 14px
}

.feature h3 {
    font-size: 15px;
    margin-bottom: 8px
}

.feature p {
    font-size: 12px;
    color: #8a94a3;
    line-height: 1.9
}

.how {
    background: #edf4fd;
    border-top: 1px solid #e8eff9;
    border-bottom: 1px solid #e8eff9;
    padding: 36px 0
}

.how-layout {
    display: grid;
    grid-template-columns: 255px 1fr;
    gap: 40px;
    align-items: center
}

.how-intro h2 {
    font-size: 21px;
    color: #2d4d79;
    margin-bottom: 8px
}

.how-intro p {
    font-size: 12px;
    color: #8193ad;
    max-width: 225px
}

.how-intro>a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    color: #547eaf;
    margin-top: 12px
}

.steps-grid {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    margin: 0;
    padding: 0
}

.steps-grid li {
    display: flex;
    gap: 12px;
    align-items: flex-start
}

.step-num {
    font: 22px/1.5 Georgia, serif;
    color: #92add2;
    border-bottom: 1px solid #c5d5ed;
    padding-bottom: 5px
}

.steps-grid h3 {
    font-size: 13px;
    color: #40618b;
    margin-top: 2px;
    margin-bottom: 7px
}

.steps-grid p {
    font-size: 11px;
    color: #8295b0;
    line-height: 1.9
}

.sample-section {
    padding-top: 47px;
    padding-bottom: 40px
}

.sample-report {
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    max-width: 970px;
    margin: auto;
    background: #f8f9fb
}

.sample-toolbar {
    padding: 13px 23px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #7d899b;
    font-size: 12px
}

.sample-toolbar>span {
    display: flex;
    align-items: center;
    gap: 8px
}

.sample-key {
    font-size: 11px;
    margin-left: 15px
}

.sample-key:before {
    content: "";
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 6px
}

.before-key:before {
    background: #e39999
}

.after-key:before {
    background: #80b79e
}

.sample-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    padding: 19px 26px
}

.sample-columns>div {
    min-width: 0
}

.sample-file {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 11px;
    color: #929baa;
    margin-bottom: 12px
}

.sample-paper {
    padding: 23px 27px;
    background: #fff;
    border: 1px solid #e7eaf0;
    font: 12px/2.05 "SimSun", serif;
    color: #6f7785;
    min-height: 257px
}

.sample-paper h3 {
    font-size: 15px;
    text-align: center;
    margin-bottom: 18px;
    color: #445268;
    letter-spacing: 2px
}

.sample-paper p {
    margin-bottom: 6px
}

.sample-paper del {
    background: #fbe8e8;
    color: #a65d5d;
    padding: 2px 4px
}

.sample-paper ins {
    background: #e4f3ea;
    color: #428365;
    padding: 2px 4px;
    text-decoration: none
}

.sample-line {
    display: block;
    background: #eef0f3;
    height: 4px;
    margin-top: 13px;
    max-width: 90%
}

.sample-line.short {
    max-width: 65%;
    margin-top: 9px
}

.sample-caption {
    text-align: center;
    font-size: 10px;
    color: #9ba4b0;
    padding: 0 15px 16px
}

.home-help {
    border-top: 1px solid #edf0f4;
    padding-top: 25px;
    padding-bottom: 35px;
    display: flex;
    gap: 35px;
    align-items: center
}

.home-help h2 {
    font-size: 15px;
    white-space: nowrap
}

.home-help>div {
    display: flex;
    justify-content: space-between;
    flex: 1;
    gap: 20px
}

.home-help a {
    display: flex;
    align-items: center;
    gap: 13px;
    color: #8390a2;
    font-size: 12px
}

.footer {
    background: #f8f9fb;
    border-top: 1px solid var(--border);
    padding: 26px 0 17px;
    color: #8791a0;
    font-size: 12px
}

.footer-main {
    display: flex;
    justify-content: space-between;
    gap: 25px;
    align-items: center
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 17px;
    font-weight: 600;
    color: #5d6f88
}

.footer-main p {
    font-size: 11px;
    color: #9ba3af;
    margin-top: 5px
}

.footer-main nav {
    display: flex;
    flex-wrap: wrap;
    gap: 24px
}

.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 17px;
    margin-top: 22px;
    padding-top: 17px;
    border-top: 1px solid #e9edf2;
    font-size: 11px
}

.friend-links>span {
    color: #a0a8b4
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 10px;
    color: #a2aab6;
    margin-top: 14px
}

.inner-page {
    background: var(--bg)
}

.inner-page main {
    min-height: calc(100vh - 282px)
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: #929baa;
    padding: 22px 0
}

.breadcrumb a {
    color: #7a8aa0
}

.breadcrumb span {
    color: #c1c7d0
}

.content-shell {
    padding-bottom: 50px
}

.content-layout {
    display: grid;
    grid-template-columns: 202px minmax(0, 1fr);
    gap: 24px;
    align-items: start
}

.content-nav {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 19px 0
}

.content-nav h2 {
    font-size: 14px;
    padding: 0 20px 16px;
    border-bottom: 1px solid #edf0f4;
    margin-bottom: 8px
}

.content-nav>a {
    display: flex;
    justify-content: space-between;
    margin: 2px 9px;
    padding: 9px 12px;
    font-size: 13px;
    color: #728096;
    border-radius: 3px
}

.content-nav>a span {
    color: #b9c2d0
}

.content-nav>a.active {
    color: var(--blue);
    background: #edf4fe
}

.sidebar-note {
    margin: 20px 20px 0;
    padding-top: 20px;
    border-top: 1px solid #edf0f4;
    color: #8c9bb0;
    font-size: 12px
}

.sidebar-note>svg {
    color: #9ab0ce
}

.sidebar-note p {
    margin: 8px 0 13px;
    line-height: 1.9
}

.sidebar-note a {
    color: #6a8bb8
}

.content-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 35px 42px;
    min-height: 490px;
    min-width: 0
}

.content-header {
    padding-bottom: 22px;
    border-bottom: 1px solid #edf0f4;
    margin-bottom: 25px
}

.content-header h1 {
    font-size: 25px;
    margin-bottom: 6px
}

.content-header p {
    font-size: 11px;
    color: #a0a8b4
}

.article-content {
    font-size: 13px;
    color: #687589;
    line-height: 2.05;
    overflow-wrap: anywhere
}

.article-content>p {
    margin-bottom: 21px
}

.prose-section {
    margin: 0 0 25px
}

.prose-section h2 {
    font-size: 15px;
    font-weight: 600;
    color: #3f516a;
    margin: 0 0 8px
}

.content-bottom {
    margin-top: 37px;
    border-top: 1px solid #edf0f4;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    gap: 15px;
    color: #7892b4;
    font-size: 12px
}

.article-list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 0;
    border-bottom: 1px solid #edf0f4
}

.article-list-row:first-child {
    padding-top: 0
}

.article-list-row h2 {
    font-size: 16px;
    margin: 6px 0
}

.article-list-row p {
    font-size: 12px;
    color: #939cab
}

.article-list-row>svg {
    color: #9eabc0
}

.article-tag,
.article-date {
    font-size: 11px;
    color: #8a9bb3
}

.subpage {
    padding-bottom: 50px
}

.subheading {
    padding: 10px 0 28px
}

.subheading h1 {
    font-size: 27px;
    margin-bottom: 7px
}

.subheading p {
    font-size: 13px;
    color: #8b96a7
}

.pricing-notice {
    border: 1px solid #dce7f8;
    background: #edf4fe;
    color: #6481a8;
    padding: 14px 20px;
    font-size: 12px;
    margin-bottom: 25px;
    border-radius: 5px
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    margin-bottom: 25px
}

.pricing-card {
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    padding: 28px 24px
}

.pricing-card.highlight {
    border-color: #7da4dc
}

.price-label {
    font-size: 14px;
    color: #6d7e96
}

.price-number {
    font-size: 36px;
    color: #2a4161;
    margin-top: 15px;
    line-height: 1.5
}

.price-number small {
    font-size: 19px;
    margin-right: 5px
}

.point-bundle {
    font-size: 12px;
    color: #8c98aa;
    margin-top: 8px
}

.point-bundle strong {
    font-size: 18px;
    color: #567bac;
    font-weight: 400
}

.price-divider {
    height: 1px;
    background: #edf0f4;
    margin: 22px 0
}

.pricing-card p {
    font-size: 11px;
    color: #929dad;
    margin-bottom: 20px
}

.muted {
    color: #8b98ab;
    font-size: 12px
}

.center-text {
    text-align: center
}

.empty-state {
    padding: 65px 25px;
    text-align: center;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px
}

.empty-icon {
    margin-bottom: 17px;
    color: #69a485
}

.empty-state h2 {
    font-size: 21px;
    margin-bottom: 9px
}

.empty-state p {
    font-size: 13px;
    color: #8b97a8;
    margin: 0 auto 25px;
    max-width: 600px
}

.empty-state small {
    display: block;
    color: #a2aab7;
    font-size: 11px;
    margin-top: 17px
}

.empty-state small a {
    color: #7894ba
}

.profile-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 25px
}

.profile-card,
.my-tasks,
.account-records {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 25px
}

.member-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 25px
}

.member-avatar {
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    color: #7f9dbe;
    background: #eef4fc;
    border-radius: 50%
}

.member-row h3 {
    font-size: 15px
}

.member-row span {
    font-size: 11px;
    color: #8b97a9
}

.balance-label {
    font-size: 12px;
    color: #8e99aa
}

.balance-number {
    font-size: 38px;
    color: #3c6498;
    margin: 4px 0 20px
}

.balance-number span {
    font-size: 13px;
    color: #8c99ad
}

.member-bottom {
    display: flex;
    gap: 10px
}

.my-tasks h3,
.account-records h3 {
    font-size: 16px;
    margin-bottom: 15px
}

.account-records {
    margin-top: 25px
}

.account-records h3:not(:first-child) {
    margin-top: 30px
}

.task-row {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #edf0f4;
    font-size: 12px
}

.task-row>span {
    min-width: 0;
    overflow-wrap: anywhere
}

.task-row b {
    font-weight: 400
}

.task-row small {
    display: block;
    color: #98a2b1;
    margin-top: 3px;
    font-size: 11px
}

.status {
    font-size: 11px;
    font-style: normal;
    padding: 3px 8px;
    background: #edf3fc;
    color: #6582a9;
    border-radius: 3px;
    white-space: nowrap
}

.status-success {
    color: #488769;
    background: #edf7f1
}

.status-failed {
    color: #bc7979;
    background: #fbefef
}

.record-row {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    align-items: center;
    border-bottom: 1px solid #edf0f4;
    padding: 14px 0;
    font-size: 12px
}

.record-row>span:first-child {
    flex: 1;
    min-width: 0;
    overflow-wrap: anywhere
}

.record-row small {
    display: block;
    color: #9aa4b3;
    font-size: 11px
}

.record-row b {
    font-weight: 400
}

.record-row>span:last-child {
    color: #8f9aac
}

.small-empty,
.loading-placeholder {
    padding: 35px 20px;
    text-align: center;
    font-size: 12px;
    color: #97a2b2
}

.result-panel {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 25px
}

.result-panel .empty-state {
    border: 0
}

.result-summary {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border)
}

.result-summary h2 {
    font-size: 17px;
    margin-top: 14px;
    overflow-wrap: anywhere
}

.result-summary p {
    font-size: 12px;
    color: #8c98a9;
    margin-top: 6px;
    overflow-wrap: anywhere
}

.stats {
    display: flex;
    gap: 30px;
    align-items: center;
    text-align: center
}

.stats strong {
    display: block;
    font-size: 27px;
    font-weight: 400;
    color: #5379ac
}

.stats small {
    font-size: 11px;
    color: #98a3b3
}

.report-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 22px 0
}

.doc-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px
}

.preview-panel {
    border: 1px solid var(--border);
    min-width: 0
}

.preview-panel h3 {
    font-size: 13px;
    font-weight: 400;
    padding: 10px 15px;
    background: var(--bg)
}

.preview-panel iframe {
    width: 100%;
    height: 520px;
    border: 0
}

.diff-section-title {
    margin: 30px 0 18px
}

.diff-section-title h3 {
    font-size: 16px
}

.diff-section-title h3 span {
    color: #92a2b9;
    font-size: 12px;
    font-weight: 400;
    margin-left: 10px
}

.diff-section-title p {
    font-size: 12px;
    color: #98a3b3;
    margin-top: 5px
}

.diff-card {
    border: 1px solid var(--border);
    margin-bottom: 15px;
    border-radius: 4px;
    overflow: hidden
}

.diff-top {
    display: flex;
    gap: 10px;
    padding: 10px 15px;
    background: #f8fafc;
    font-size: 11px;
    color: #97a2b1
}

.diff-badge {
    padding: 1px 6px;
    border-radius: 3px
}

.diff-badge.new {
    background: #e4f4eb;
    color: #508a6c
}

.diff-badge.remove {
    background: #fbe8e8;
    color: #b27878
}

.diff-badge.edit {
    background: #fcf3df;
    color: #a68d56
}

.diff-columns {
    display: grid;
    grid-template-columns: 1fr 1fr
}

.diff-columns>div {
    padding: 16px 18px;
    min-width: 0;
    overflow-wrap: anywhere
}

.diff-columns>div:first-child {
    border-right: 1px solid var(--border)
}

.diff-columns label {
    font-size: 10px;
    color: #a2adbc
}

.diff-columns p {
    font-size: 12px;
    color: #64748b;
    margin-top: 7px;
    white-space: pre-wrap
}

.diff-columns em {
    color: #bac2cd;
    font-style: normal
}

.loader {
    width: 30px;
    height: 30px;
    border: 3px solid #e9eff7;
    border-top-color: #648bc1;
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite
}

@keyframes spin {
    to {
        transform: rotate(360deg)
    }
}

.toast {
    position: fixed;
    z-index: 150;
    bottom: 35px;
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 36px);
    background: #34445a;
    color: #fff;
    border-radius: 5px;
    padding: 11px 22px;
    opacity: 0;
    pointer-events: none;
    font-size: 13px
}

.toast.show {
    opacity: 1
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px
}

.modal.visible {
    display: flex
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(26, 38, 55, .4)
}

.modal-content {
    position: relative;
    background: #fff;
    border-radius: 7px;
    max-width: 450px;
    width: 100%;
    padding: 30px;
    max-height: calc(100dvh - 40px);
    overflow-y: auto;
    box-shadow: 0 12px 55px #172e4922
}

.modal-content h3 {
    font-size: 20px;
    margin: 0 25px 10px 0
}

.modal-content>p {
    font-size: 12px;
    color: #929dad
}

.modal-close {
    position: absolute;
    right: 15px;
    top: 10px;
    border: 0;
    background: none;
    font-size: 25px;
    color: #98a3b2;
    padding: 3px 8px
}

.quote-info {
    margin: 22px 0 17px;
    padding-bottom: 17px;
    border-bottom: 1px solid var(--border)
}

.quote-info>div {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 9px;
    color: #7d8a9e
}

.quote-info b {
    font-weight: 400;
    color: #465c7b
}

.quote-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px
}

.quote-total strong {
    font-size: 25px;
    color: var(--blue);
    font-weight: 400
}

.modal-content .quote-rule {
    font-size: 11px;
    margin-top: 12px
}

.quote-balance {
    font-size: 12px;
    color: #8b97a9;
    margin-top: 8px
}

.quote-balance a {
    color: var(--blue);
    margin-left: 10px
}

.modal-buttons {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    justify-content: flex-end
}

.pay-box {
    text-align: center
}

.pay-box h3 {
    margin-right: 0
}

.pay-box img {
    display: block;
    object-fit: contain;
    max-width: 100%;
    height: auto;
    margin: 20px auto;
    border: 1px solid var(--border);
    padding: 8px
}

.pay-amount {
    font-size: 23px;
    color: #3c659c;
    margin-top: 15px
}

.pay-order {
    font-size: 10px;
    color: #a1aab7;
    overflow-wrap: anywhere;
    margin: 8px 0 20px
}

.login-box {
    text-align: center;
    max-width: 400px;
    padding: 35px
}

.wechat-mark {
    display: block;
    color: #16a05a;
    margin: 5px 0 16px
}

.login-box h3 {
    margin-right: 0
}

.login-box .login-explain {
    margin-top: 13px;
    font-size: 11px
}

.login-box .btn {
    margin: 25px 0 18px;
    width: 100%
}

.login-box small {
    display: block;
    color: #a3acb9;
    font-size: 11px
}

.login-box small a {
    color: #7593bc
}

@media(min-width:1440px) {
    .tool-section {
        padding-top: 46px
    }

    .tool-heading {
        margin-bottom: 34px
    }

    .upload-zone {
        min-height: 270px
    }
}

@media(max-width:1100px) {
    .brand small {
        display: none
    }

    .nav {
        gap: 23px
    }

    .header-inner {
        gap: 23px
    }

    .compare-workspace {
        grid-template-columns: minmax(0, 1fr) 265px;
        gap: 16px
    }

    .files-panel {
        padding: 22px 20px 18px
    }

    .upload-grid {
        gap: 17px
    }

    .file-slot-heading>span:last-child {
        display: none
    }

    .how-layout {
        grid-template-columns: 230px 1fr;
        gap: 25px
    }

    .steps-grid {
        gap: 16px
    }

    .steps-grid li {
        gap: 9px
    }

    .feature {
        padding: 4px 20px
    }

    .home-help {
        align-items: flex-start
    }

    .home-help>div {
        flex-wrap: wrap;
        gap: 12px 24px
    }

    .pricing-card {
        padding: 25px 20px
    }

    .content-card {
        padding: 30px
    }
}

@media(max-width:850px) {
    .shell {
        width: calc(100% - 40px)
    }

    .site-header {
        height: 66px
    }

    .header-inner {
        gap: 15px
    }

    .brand {
        font-size: 20px;
        gap: 8px
    }

    .brand-icon {
        width: 31px;
        height: 35px
    }

    .header-actions {
        margin-left: auto
    }

    .mobile-menu {
        display: block
    }

    .nav {
        display: none;
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        height: auto;
        flex-direction: column;
        align-items: stretch;
        padding: 10px 20px;
        background: #fff;
        border-bottom: 1px solid var(--border);
        gap: 0;
        box-shadow: 0 8px 15px #243d5910
    }

    .nav.expanded {
        display: flex
    }

    .nav>a {
        height: 43px;
        padding: 0 12px
    }

    .nav>a.active:after {
        display: none
    }

    .nav>a.active {
        background: var(--soft)
    }

    .tool-section {
        padding-top: 30px
    }

    .tool-heading h1 {
        font-size: 28px
    }

    .tool-heading {
        margin-bottom: 25px
    }

    .compare-workspace {
        grid-template-columns: minmax(0, 1fr) 238px;
        gap: 14px
    }

    .files-panel {
        padding: 20px 16px
    }

    .upload-grid {
        grid-template-columns: 1fr;
        gap: 15px
    }

    .upload-zone {
        min-height: 160px;
        padding: 16px 10px;
        display: grid;
        grid-template-columns: 43px 1fr;
        column-gap: 13px;
        justify-items: start;
        align-content: center
    }

    .upload-icon {
        grid-row: 1/4;
        margin: 0;
        align-self: start;
        margin-top: 8px
    }

    .upload-zone strong {
        font-size: 13px;
        text-align: left
    }

    .zone-tip {
        font-size: 11px;
        margin: 4px 0 8px
    }

    .file-select {
        padding: 3px 15px;
        font-size: 11px
    }

    .file-format {
        grid-column: 2;
        font-size: 10px;
        margin-top: 10px
    }

    .file-slot-heading {
        margin-bottom: 9px
    }

    .file-slot-heading>span:last-child {
        display: inline;
        font-size: 10px
    }

    .remove-file {
        bottom: 8px;
        right: 7px;
        background: transparent;
        font-size: 10px
    }

    .file-notice {
        margin-top: 18px;
        font-size: 10px
    }

    .settings-panel {
        padding: 20px 17px
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 25px
    }

    .feature,
    .feature:first-child,
    .feature:last-child {
        border: 0;
        padding: 0
    }

    .how-layout {
        grid-template-columns: 1fr;
        gap: 25px
    }

    .how-intro {
        display: grid;
        grid-template-columns: 1fr auto;
        align-items: center
    }

    .how-intro h2 {
        font-size: 20px
    }

    .how-intro p {
        max-width: none;
        grid-row: 2
    }

    .how-intro>a {
        grid-column: 2;
        grid-row: 1/3;
        margin: 0
    }

    .content-layout {
        grid-template-columns: 165px minmax(0, 1fr);
        gap: 18px
    }

    .content-card {
        padding: 28px
    }

    .content-nav>a {
        font-size: 12px
    }

    .pricing-grid {
        gap: 15px;
        grid-template-columns: repeat(2, minmax(0, 1fr))
    }

    .profile-grid {
        grid-template-columns: 250px 1fr
    }

    .sample-columns {
        padding: 16px;
        gap: 15px
    }

    .sample-paper {
        padding: 20px;
        font-size: 11px
    }

    .footer-main nav {
        gap: 17px
    }

    .stats {
        gap: 18px
    }

    .stats strong {
        font-size: 23px
    }
}

@media(max-width:600px) {
    .shell {
        width: calc(100% - 30px)
    }

    .site-header {
        height: 61px
    }

    .nav {
        top: 61px
    }

    .brand {
        font-size: 18px
    }

    .brand-icon {
        width: 29px;
        height: 32px
    }

    .brand-icon svg {
        width: 21px
    }

    .login-link {
        font-size: 12px;
        padding: 7px 10px;
        gap: 5px
    }

    .login-link svg {
        width: 16px
    }

    .header-actions {
        gap: 9px
    }

    .tool-section {
        padding: 26px 0 19px
    }

    .tool-heading h1 {
        font-size: 25px;
        letter-spacing: 1px;
        margin-bottom: 7px
    }

    .tool-heading p {
        font-size: 11px
    }

    .compare-workspace {
        grid-template-columns: 1fr;
        gap: 13px
    }

    .files-panel {
        padding: 17px 15px 14px
    }

    .panel-title {
        margin-bottom: 17px
    }

    .panel-title h2 {
        font-size: 14px
    }

    .panel-title>span {
        font-size: 10px
    }

    .upload-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px
    }

    .file-slot-heading {
        gap: 5px
    }

    .file-slot-heading h3 {
        font-size: 12px
    }

    .slot-number {
        width: 17px;
        height: 17px;
        font-size: 10px
    }

    .file-slot-heading>span:last-child {
        display: none
    }

    .upload-zone {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 19px 8px;
        min-height: 200px
    }

    .upload-icon {
        margin: 0 0 13px
    }

    .upload-icon svg {
        width: 28px;
        height: 28px
    }

    .upload-zone strong {
        font-size: 11px;
        text-align: center;
        overflow-wrap: anywhere
    }

    .zone-tip {
        font-size: 10px;
        margin: 5px 0 12px
    }

    .file-select {
        padding: 4px 14px;
        font-size: 11px
    }

    .file-format {
        font-size: 9px;
        line-height: 1.7;
        text-align: center;
        margin-top: 13px
    }

    .remove-file {
        bottom: 3px;
        right: 3px;
        font-size: 9px
    }

    .file-notice {
        font-size: 10px;
        gap: 6px;
        line-height: 1.8;
        margin-top: 15px
    }

    .settings-panel {
        padding: 17px 16px 13px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 20px
    }

    .settings-panel .panel-title {
        grid-column: 1/-1;
        margin-bottom: 16px
    }

    .setting-group {
        margin-bottom: 16px
    }

    .setting-label,
    .setting-group legend {
        font-size: 11px
    }

    .fixed-option {
        font-size: 11px;
        padding: 7px;
        gap: 5px
    }

    .fixed-option span {
        display: none
    }

    .compare-opts {
        gap: 10px 8px;
        grid-template-columns: 1fr 1fr
    }

    .compare-opts label {
        font-size: 10px;
        gap: 5px
    }

    .compare-opts input {
        width: 12px;
        height: 12px
    }

    .setting-group legend small {
        font-size: 9px
    }

    .billing-note {
        grid-column: 1/-1;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 5px 20px;
        padding-top: 12px;
        margin-bottom: 13px
    }

    .billing-note strong {
        font-size: 11px
    }

    .billing-note p {
        margin: 0;
        grid-column: 1;
        grid-row: 2;
        font-size: 11px
    }

    .billing-note small {
        grid-column: 2;
        grid-row: 1/3;
        align-self: center;
        font-size: 10px
    }

    .compare-submit {
        grid-column: 1/-1;
        font-size: 14px;
        padding: 10px
    }

    .login-note {
        grid-column: 1/-1;
        font-size: 10px;
        margin-top: 7px
    }

    .tool-bottom {
        font-size: 10px;
        margin-top: 13px;
        gap: 9px;
        flex-wrap: wrap
    }

    .tool-bottom>span {
        display: none
    }

    .tool-bottom a {
        margin-left: auto
    }

    .section-heading {
        margin-bottom: 25px
    }

    .section-heading h2 {
        font-size: 21px;
        margin-bottom: 7px
    }

    .section-heading p {
        font-size: 11px
    }

    .advantages {
        padding-top: 33px;
        padding-bottom: 32px
    }

    .feature-grid {
        gap: 25px 24px
    }

    .feature-icon {
        margin-bottom: 10px
    }

    .feature-icon svg {
        width: 23px
    }

    .feature h3 {
        font-size: 13px;
        margin-bottom: 6px
    }

    .feature p {
        font-size: 11px;
        line-height: 1.85
    }

    .how {
        padding: 27px 0
    }

    .how-layout {
        gap: 22px
    }

    .how-intro {
        display: block
    }

    .how-intro h2 {
        font-size: 20px
    }

    .how-intro p {
        font-size: 11px
    }

    .how-intro>a {
        font-size: 11px;
        margin-top: 11px
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 20px
    }

    .steps-grid li {
        gap: 14px
    }

    .step-num {
        font-size: 23px;
        width: 30px;
        flex-shrink: 0;
        line-height: 1.4
    }

    .steps-grid h3 {
        font-size: 13px;
        margin-bottom: 3px
    }

    .steps-grid p {
        font-size: 11px
    }

    .sample-section {
        padding-top: 32px;
        padding-bottom: 27px
    }

    .sample-toolbar {
        padding: 10px 12px;
        font-size: 11px
    }

    .sample-key {
        font-size: 9px;
        margin-left: 10px
    }

    .sample-toolbar svg {
        width: 15px
    }

    .sample-columns {
        gap: 10px;
        padding: 12px 10px
    }

    .sample-file {
        font-size: 9px;
        gap: 4px;
        margin-bottom: 8px
    }

    .sample-file svg {
        width: 12px
    }

    .sample-paper {
        padding: 16px 10px;
        font-size: 10px;
        line-height: 1.9;
        min-height: 265px
    }

    .sample-paper h3 {
        font-size: 12px;
        letter-spacing: 0;
        margin-bottom: 16px
    }

    .sample-paper p {
        margin-bottom: 8px
    }

    .sample-caption {
        font-size: 9px;
        padding: 0 9px 13px
    }

    .home-help {
        display: block;
        padding-top: 23px;
        padding-bottom: 25px
    }

    .home-help h2 {
        font-size: 15px;
        margin-bottom: 10px
    }

    .home-help>div {
        display: block
    }

    .home-help a {
        font-size: 11px;
        padding: 8px 0;
        justify-content: space-between
    }

    .footer {
        padding-top: 23px
    }

    .footer-main {
        display: block
    }

    .footer-brand {
        font-size: 16px
    }

    .footer-main p {
        font-size: 10px
    }

    .footer-main nav {
        gap: 16px;
        margin-top: 19px;
        font-size: 11px
    }

    .friend-links {
        margin-top: 17px;
        padding-top: 13px;
        font-size: 10px;
        gap: 13px
    }

    .footer-bottom {
        font-size: 9px;
        flex-direction: column;
        gap: 4px;
        margin-top: 12px
    }

    .breadcrumb {
        font-size: 10px;
        padding: 16px 0;
        gap: 9px
    }

    .content-shell {
        padding-bottom: 30px
    }

    .content-layout {
        display: block
    }

    .content-nav {
        padding: 7px;
        display: flex;
        flex-wrap: wrap;
        gap: 3px;
        margin-bottom: 14px
    }

    .content-nav h2,
    .sidebar-note {
        display: none
    }

    .content-nav>a {
        margin: 0;
        padding: 6px 9px;
        font-size: 11px
    }

    .content-nav>a span {
        display: none
    }

    .content-card {
        padding: 23px 20px;
        min-height: 350px
    }

    .content-header {
        padding-bottom: 17px;
        margin-bottom: 21px
    }

    .content-header h1 {
        font-size: 22px
    }

    .content-header p {
        font-size: 10px
    }

    .article-content {
        font-size: 12px;
        line-height: 2
    }

    .prose-section {
        margin-bottom: 23px
    }

    .prose-section h2 {
        font-size: 14px
    }

    .content-bottom {
        font-size: 10px;
        margin-top: 27px;
        padding-top: 17px
    }

    .article-list-row {
        padding: 18px 0
    }

    .article-list-row h2 {
        font-size: 14px
    }

    .article-list-row p {
        font-size: 11px
    }

    .subpage {
        padding-bottom: 30px
    }

    .subheading {
        padding: 5px 0 22px
    }

    .subheading h1 {
        font-size: 23px
    }

    .subheading p {
        font-size: 12px
    }

    .pricing-notice {
        padding: 12px 15px;
        font-size: 11px;
        margin-bottom: 18px
    }

    .pricing-grid {
        gap: 13px
    }

    .pricing-card {
        padding: 21px 16px
    }

    .price-label {
        font-size: 12px
    }

    .price-number {
        font-size: 31px;
        margin-top: 11px
    }

    .point-bundle {
        font-size: 11px
    }

    .point-bundle strong {
        font-size: 16px
    }

    .price-divider {
        margin: 17px 0
    }

    .pricing-card p {
        font-size: 10px;
        margin-bottom: 15px
    }

    .pricing-card .btn {
        font-size: 12px;
        padding: 9px 5px
    }

    .empty-state {
        padding: 42px 20px
    }

    .empty-state h2 {
        font-size: 18px
    }

    .empty-state p {
        font-size: 12px
    }

    .profile-grid {
        grid-template-columns: 1fr;
        gap: 18px
    }

    .profile-card,
    .my-tasks,
    .account-records {
        padding: 20px
    }

    .member-row {
        margin-bottom: 20px
    }

    .record-row {
        flex-wrap: wrap;
        font-size: 11px;
        gap: 8px
    }

    .record-row small {
        font-size: 10px
    }

    .result-panel {
        padding: 16px
    }

    .result-summary {
        display: block
    }

    .result-summary h2 {
        font-size: 15px
    }

    .stats {
        margin-top: 25px;
        justify-content: space-between;
        text-align: left;
        gap: 15px
    }

    .stats strong {
        font-size: 23px
    }

    .stats small {
        font-size: 10px
    }

    .report-controls .btn {
        font-size: 11px;
        padding: 9px 13px
    }

    .doc-preview-grid {
        grid-template-columns: 1fr;
        gap: 14px
    }

    .preview-panel iframe {
        height: 380px
    }

    .diff-columns {
        grid-template-columns: 1fr
    }

    .diff-columns>div:first-child {
        border-right: 0;
        border-bottom: 1px solid var(--border)
    }

    .diff-top {
        padding: 9px 10px;
        font-size: 10px
    }

    .diff-columns>div {
        padding: 12px
    }

    .modal {
        padding: 17px
    }

    .modal-content {
        padding: 27px 22px
    }

    .modal-content h3 {
        font-size: 18px
    }

    .modal-content>p {
        font-size: 11px
    }

    .modal-content .btn {
        font-size: 13px
    }

    .login-box {
        padding: 30px 25px
    }

    .toast {
        font-size: 12px;
        bottom: 25px;
        padding: 10px 17px
    }

    .account-link {
        font-size: 12px
    }
}

@media(prefers-reduced-motion:reduce) {
    .loader {
        animation: none
    }
}

/* Typography: stronger ink, readable secondary copy and clear heading weights. */
:root {
    --dark: #1f2937;
    --muted: #596579
}

body {
    font-size: 15px;
    color: var(--dark)
}

h1,
h2,
h3 {
    font-weight: 700
}

.brand,
.footer-brand {
    font-weight: 700;
    color: #1f2937
}

.brand small {
    font-size: 12px;
    color: #667085;
    font-weight: 500
}

.nav>a {
    font-size: 15px;
    font-weight: 600;
    color: #374151
}

.btn,
.file-select,
.compare-submit {
    font-weight: 600
}

.btn-light {
    color: #374151
}

.tool-heading h1 {
    font-weight: 800;
    color: #172033
}

.tool-heading p {
    font-size: 16px;
    color: #4b5563
}

.panel-title h2 {
    font-size: 17px;
    font-weight: 700;
    color: #1f2937
}

.panel-title>span,
.file-slot-heading>span:last-child {
    font-size: 12px;
    color: #667085;
    font-weight: 500
}

.file-slot-heading h3 {
    font-size: 15px;
    font-weight: 700;
    color: #273449
}

.slot-number {
    font-weight: 700
}

.upload-zone strong {
    font-size: 16px;
    font-weight: 600;
    color: #273449
}

.zone-tip {
    font-size: 14px;
    color: #667085
}

.upload-icon {
    color: #537cb4
}

.file-select {
    font-size: 14px;
    border-color: #91afd8
}

.file-format {
    font-size: 12px;
    color: #667085
}

.file-notice {
    font-size: 12px;
    color: #5f6b7c
}

.file-notice a,
.tool-bottom a,
.how-intro>a,
.sidebar-note a,
.content-bottom {
    color: #2c609f;
    font-weight: 500
}

.file-notice svg {
    color: #6683a7
}

.text-button,
.remove-file {
    font-size: 13px;
    color: #596579;
    font-weight: 500
}

.setting-label,
.setting-group legend {
    font-size: 13px;
    color: #374151;
    font-weight: 600
}

.setting-group legend small,
.fixed-option span {
    font-size: 12px;
    color: #667085
}

.fixed-option {
    font-size: 13px;
    font-weight: 600
}

.compare-opts label {
    font-size: 13px;
    color: #374151;
    font-weight: 500
}

.billing-note {
    font-size: 13px
}

.billing-note strong,
.billing-note b {
    font-weight: 600;
    color: #344054
}

.billing-note p {
    color: #4b5563
}

.billing-note small {
    font-size: 12px;
    color: #667085
}

.login-note {
    font-size: 12px;
    color: #596579
}

.login-note b {
    font-weight: 700
}

.tool-bottom {
    font-size: 12px;
    color: #667085
}

.section-heading h2 {
    color: #1f2937;
    font-weight: 700
}

.section-heading p {
    font-size: 14px;
    color: #596579
}

.feature h3 {
    font-size: 17px;
    color: #273449;
    font-weight: 700
}

.feature p {
    font-size: 14px;
    color: #4b5563;
    line-height: 1.85
}

.how-intro h2 {
    color: #24466f;
    font-weight: 700
}

.how-intro p,
.steps-grid p {
    font-size: 13px;
    color: #4f6685
}

.how-intro>a {
    font-size: 13px
}

.step-num {
    color: #5577a4;
    font-weight: 700
}

.steps-grid h3 {
    font-size: 15px;
    color: #2b4d78;
    font-weight: 700
}

.sample-toolbar,
.sample-file {
    font-size: 12px;
    color: #596579
}

.sample-key {
    font-size: 12px;
    font-weight: 500
}

.sample-paper {
    font-size: 13px;
    color: #374151
}

.sample-paper h3 {
    color: #273449;
    font-weight: 700
}

.sample-caption {
    font-size: 12px;
    color: #667085
}

.home-help h2 {
    font-size: 17px;
    font-weight: 700
}

.home-help a {
    font-size: 13px;
    color: #4b5563
}

.footer {
    color: #596579
}

.footer-main p {
    font-size: 12px;
    color: #667085
}

.footer-main nav {
    font-weight: 500
}

.friend-links,
.footer-bottom {
    font-size: 12px;
    color: #667085
}

.friend-links>span {
    color: #596579;
    font-weight: 600
}

.breadcrumb,
.breadcrumb a {
    font-size: 13px;
    color: #596579
}

.content-nav h2 {
    font-size: 15px;
    font-weight: 700
}

.content-nav>a {
    font-size: 14px;
    color: #475467;
    font-weight: 500
}

.sidebar-note {
    color: #667085
}

.content-header h1,
.subheading h1 {
    color: #1f2937;
    font-weight: 700
}

.content-header p {
    font-size: 12px;
    color: #667085
}

.article-content {
    font-size: 15px;
    color: #374151;
    line-height: 2
}

.prose-section h2 {
    font-size: 17px;
    color: #1f2937;
    font-weight: 700
}

.content-bottom {
    font-size: 13px
}

.article-list-row h2 {
    font-size: 17px;
    font-weight: 700;
    color: #273449
}

.article-list-row p,
.article-tag,
.article-date {
    font-size: 13px;
    color: #667085
}

.subheading p {
    font-size: 14px;
    color: #596579
}

.pricing-notice {
    font-size: 13px;
    color: #375b89
}

.price-label {
    font-size: 15px;
    color: #374151;
    font-weight: 600
}

.price-number {
    font-weight: 700;
    color: #1f2937
}

.point-bundle {
    font-size: 13px;
    color: #596579
}

.point-bundle strong {
    font-weight: 700;
    color: #315d99
}

.pricing-card p {
    font-size: 13px;
    color: #596579
}

.muted {
    font-size: 13px;
    color: #667085
}

.empty-state h2 {
    font-weight: 700;
    color: #273449
}

.empty-state p {
    font-size: 14px;
    color: #596579
}

.empty-state small {
    font-size: 12px;
    color: #667085
}

.empty-state small a {
    color: #2c609f
}

.member-row h3,
.my-tasks h3,
.account-records h3 {
    font-weight: 700;
    color: #273449
}

.member-row span,
.balance-label {
    font-size: 13px;
    color: #596579
}

.balance-number {
    font-weight: 700;
    color: #315d99
}

.task-row,
.record-row {
    font-size: 13px;
    color: #374151
}

.task-row b,
.record-row b {
    font-weight: 600
}

.task-row small,
.record-row small,
.record-row>span:last-child {
    font-size: 12px;
    color: #667085
}

.status {
    font-size: 12px;
    font-weight: 600
}

.small-empty,
.loading-placeholder {
    font-size: 13px;
    color: #667085
}

.result-summary h2,
.stats strong {
    font-weight: 700
}

.result-summary p,
.stats small,
.diff-section-title p {
    font-size: 13px;
    color: #596579
}

.diff-top,
.diff-columns label {
    font-size: 12px;
    color: #596579
}

.diff-columns p {
    font-size: 14px;
    color: #374151
}

.diff-columns em {
    color: #667085
}

.modal-content h3 {
    font-weight: 700;
    color: #1f2937
}

.modal-content>p,
.modal-content .quote-rule,
.quote-balance {
    font-size: 13px;
    color: #596579
}

.quote-info>div {
    font-size: 14px;
    color: #4b5563
}

.quote-info b,
.quote-total strong {
    font-weight: 700
}

.pay-order,
.login-box .login-explain,
.login-box small {
    font-size: 12px;
    color: #667085
}

@media(max-width:850px) {
    .brand {
        font-size: 20px
    }

    .nav>a {
        font-size: 14px
    }

    .upload-zone strong {
        font-size: 14px
    }

    .zone-tip {
        font-size: 13px
    }

    .feature h3 {
        font-size: 16px
    }

    .feature p {
        font-size: 13px
    }
}

@media(max-width:600px) {
    .brand {
        font-size: 19px
    }

    .login-link {
        font-size: 13px
    }

    .tool-heading h1 {
        font-size: 27px
    }

    .tool-heading p {
        font-size: 13px
    }

    .panel-title h2 {
        font-size: 15px
    }

    .panel-title>span {
        font-size: 11px
    }

    .file-slot-heading h3 {
        font-size: 13px
    }

    .upload-zone strong {
        font-size: 12px
    }

    .zone-tip {
        font-size: 11px
    }

    .file-select {
        font-size: 12px
    }

    .file-format {
        font-size: 10px
    }

    .file-notice {
        font-size: 11px
    }

    .text-button {
        font-size: 12px
    }

    .setting-label,
    .setting-group legend {
        font-size: 12px
    }

    .setting-group legend small {
        font-size: 10px
    }

    .compare-opts label {
        font-size: 11px
    }

    .fixed-option {
        font-size: 12px
    }

    .billing-note strong,
    .billing-note p {
        font-size: 12px
    }

    .billing-note small {
        font-size: 11px
    }

    .login-note,
    .tool-bottom {
        font-size: 11px
    }

    .section-heading p {
        font-size: 13px
    }

    .feature h3 {
        font-size: 15px
    }

    .feature p {
        font-size: 13px
    }

    .how-intro p,
    .how-intro>a,
    .steps-grid p {
        font-size: 12px
    }

    .steps-grid h3 {
        font-size: 14px
    }

    .sample-toolbar,
    .sample-file,
    .sample-key {
        font-size: 10px
    }

    .sample-paper {
        font-size: 11px
    }

    .sample-paper h3 {
        font-size: 13px
    }

    .sample-caption {
        font-size: 10px
    }

    .home-help h2 {
        font-size: 16px
    }

    .home-help a {
        font-size: 13px
    }

    .footer-main p,
    .footer-main nav,
    .friend-links {
        font-size: 12px
    }

    .footer-bottom {
        font-size: 11px
    }

    .breadcrumb,
    .content-nav>a {
        font-size: 12px
    }

    .content-header p {
        font-size: 12px
    }

    .article-content {
        font-size: 14px
    }

    .prose-section h2 {
        font-size: 16px
    }

    .content-bottom {
        font-size: 12px
    }

    .subheading p {
        font-size: 13px
    }

    .pricing-notice {
        font-size: 12px
    }

    .price-label {
        font-size: 14px
    }

    .point-bundle,
    .pricing-card p {
        font-size: 12px
    }

    .pricing-card .btn {
        font-size: 13px
    }

    .empty-state p {
        font-size: 13px
    }

    .record-row {
        font-size: 12px
    }

    .record-row small {
        font-size: 11px
    }

    .diff-columns p {
        font-size: 13px
    }

    .modal-content>p {
        font-size: 13px
    }
}

/* Homepage introduction, adapted to the document comparison tool. */
.home-page .tool-section {
    background: linear-gradient(180deg, #fafbff 0%, #f6f7f9 65%);
    padding-top: 48px
}

.home-page .tool-heading {
    margin-bottom: 38px
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #4f46e5;
    background: #eef1ff;
    border: 1px solid #dce2ff;
    border-radius: 30px;
    padding: 5px 15px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 22px
}

.home-page .tool-heading h1 {
    font-size: clamp(30px, 4.5vw, 60px);
    white-space: nowrap;
    line-height: 1.12;
    letter-spacing: -2px;
    font-weight: 800;
    color: #11182b;
    margin: 0 0 24px
}

.home-page .tool-heading h1>span {
    display: inline
}

.hero-gradient {
    color: #6145ed;
    background: linear-gradient(100deg, #4747ed 20%, #9333ea 80%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent
}

.home-page .tool-heading p {
    font-size: 20px;
    color: #596579;
    line-height: 1.7;
    max-width: 900px;
    margin: 0 auto
}

@media(max-width:850px) {
    .home-page .tool-section {
        padding-top: 38px
    }

    .home-page .tool-heading h1 {
        font-size: clamp(24px, 5.8vw, 48px);
        letter-spacing: -1px
    }

    .home-page .tool-heading p {
        font-size: 17px;
        max-width: 650px
    }
}

@media(max-width:600px) {
    .home-page .tool-section {
        padding-top: 30px
    }

    .hero-badge {
        font-size: 11px;
        padding: 4px 12px;
        margin-bottom: 18px
    }

    .hero-badge svg {
        width: 14px;
        height: 14px
    }

    .home-page .tool-heading {
        margin-bottom: 25px
    }

    .home-page .tool-heading h1 {
        font-size: clamp(22px, 7vw, 38px);
        line-height: 1.16;
        letter-spacing: -.6px;
        margin-bottom: 17px
    }

    .home-page .tool-heading p {
        font-size: 14px;
        line-height: 1.85;
        max-width: 345px;
        padding: 0 5px
    }

    .billing-note {
        display: block
    }

    .billing-note p {
        margin: 7px 0 0
    }

    .billing-note b {
        float: none;
        margin-left: 13px
    }
}

@media(max-width:360px) {
    .home-page .tool-heading h1 {
        font-size: clamp(21px, 7vw, 25px)
    }

    .home-page .tool-heading p {
        font-size: 13px
    }
}

@media(forced-colors:active) {
    .hero-gradient {
        background: none;
        -webkit-text-fill-color: CanvasText;
        color: CanvasText
    }
}

/* Homepage upload space and centered usage guide. */
@media (min-width: 901px) {
    .home-page .upload-zone {
        min-height: 324px;
    }
}

@media (min-width: 601px) {
    .home-page .settings-panel {
        display: flex;
        flex-direction: column;
    }

    .home-page .compare-submit {
        margin-top: auto;
    }
}

.home-page .how {
    background: #d9e6f8;
    border-color: #c4d7f1;
    padding: 40px 0;
}

.home-page .how-layout {
    grid-template-columns: 1fr;
    gap: 30px;
}

.home-page .how-intro {
    display: block;
    text-align: center;
}

.home-page .how-intro h2 {
    color: #172e4b;
    font-size: 24px;
}

.home-page .how-intro p {
    max-width: none;
    margin: 0 auto;
}

.home-page .how-intro a {
    margin-top: 12px;
}

.home-page .steps-grid {
    width: 100%;
    max-width: none;
    margin: 0 auto;
}

@media (max-width: 600px) {
    .home-page .how {
        padding: 30px 0;
    }

    .home-page .how-intro h2 {
        font-size: 20px;
    }
}

/* Four usage steps share the feature row's columns and type scale. */
.home-page .steps-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
}

.home-page .steps-grid li {
    display: block;
}

.home-page .step-num {
    display: block;
    width: auto;
    height: 25px;
    margin-bottom: 14px;
    padding: 0;
    border: 0;
    font-family: inherit;
    font-size: 22px;
    line-height: 25px;
    color: #5279af;
}

.home-page .steps-grid h3 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 17px;
    color: #273449;
}

.home-page .steps-grid p {
    font-size: 14px;
    line-height: 1.85;
    color: #4b5563;
}

@media (max-width: 850px) {
    .home-page .steps-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 25px;
    }

    .home-page .steps-grid h3 {
        font-size: 16px;
    }

    .home-page .steps-grid p {
        font-size: 13px;
    }
}

@media (max-width: 600px) {
    .home-page .steps-grid {
        gap: 25px 24px;
    }

    .home-page .step-num {
        height: 23px;
        margin-bottom: 10px;
        font-size: 20px;
        line-height: 23px;
    }

    .home-page .steps-grid h3 {
        margin-bottom: 6px;
        font-size: 15px;
    }
}

/* Give comparison settings a clear reading scale and useful supporting copy. */
.home-page .settings-panel .setting-label,
.home-page .settings-panel legend {
    font-size: 14px;
    font-weight: 600;
}

.home-page .fixed-option {
    padding: 11px 12px;
    font-size: 14px;
}

.home-page .compare-opts {
    gap: 18px 10px;
    padding: 8px 0 4px;
}

.home-page .compare-opts label {
    font-size: 14px;
}

.home-page .compare-opts input {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.recognition-guide {
    margin: 2px 0 24px;
    padding: 14px 0 0;
    border-top: 1px solid #e3eaf4;
}

.recognition-guide strong {
    font-size: 13px;
    font-weight: 600;
    color: #344a68;
}

.recognition-guide p {
    margin: 6px 0 0;
    font-size: 13px;
    line-height: 1.8;
    color: #61728b;
}

@media (max-width: 600px) {
    .home-page .compare-opts {
        gap: 14px 8px;
    }

    .home-page .compare-opts label,
    .home-page .fixed-option {
        font-size: 13px;
    }

    .recognition-guide {
        grid-column: 1 / -1;
        margin-bottom: 16px;
    }

    .home-page .settings-panel .setting-group {
        grid-column: 1 / -1;
    }
}